The 20 Best Vitamin D Deficiency Doctors Near Me in Portland, OR

Find the Top Vitamin D Deficiency Experts and Specialists

The 20 Best Vitamin D Deficiency Doctors near Portland, OR

Last Updated: 02/22/2026

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MediFind found 148 doctor with experience in Vitamin D Deficiency near Portland, OR. Of these, 143 are Experienced and 5 are Advanced.

Location
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148 providers found
    Clayton M. Smiley
    Advanced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    Advanced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    1130 Northwest 22nd Avenue, Suite 640, 
    Portland, OR 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Clayton Smiley is an Internal Medicine specialist and a Nephrologist in Portland, Oregon. Dr. Smiley is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension. Dr. Smiley is currently accepting new patients.

    Advanced in Vitamin D Deficiency
    Endocrinology
    Advanced in Vitamin D Deficiency
    Endocrinology

    Kaiser Foundation Hospitals

    3800 N Interstate Ave, 
    Portland, OR 
     (2.4 miles away)
    Languages Spoken:
    English

    Erin Leblanc is an Endocrinologist in Portland, Oregon. Dr. Leblanc is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Menopause, Obesity, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Hormone Replacement Therapy (HRT).

    Claire T. Kassakian
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    4224 Northeast Halsey Street, Suite 300, 
    Portland, OR 
     (4.1 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Claire Kassakian is an Internal Medicine specialist and a Nephrologist in Portland, Oregon. Dr. Kassakian has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Acute Kidney Failure, and Nephrosclerosis. Dr. Kassakian is currently accepting new patients.

    Learn about our expert tiers
    Chun K. Chong
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    4224 Northeast Halsey Street, Suite 300, 
    Portland, OR 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Chun Chong is an Internal Medicine specialist and a Nephrologist in Portland, Oregon. Dr. Chong is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension. Dr. Chong is currently accepting new patients.

    Todd R. Hilbelink
    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency
    4224 Northeast Halsey Street, Suite 300, 
    Portland, OR 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Todd Hilbelink is a Nephrologist in Portland, Oregon. Dr. Hilbelink is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Hypophosphatemia, and Juvenile Paget's Disease. Dr. Hilbelink is currently accepting new patients.

    Nicole M. Kemper
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    9155 Southwest Barnes Road, Suite 402, 
    Portland, OR 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nicole Kemper is an Internal Medicine specialist and a Nephrologist in Portland, Oregon. Dr. Kemper is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Acute Kidney Failure, and Diabetic Nephropathy. Dr. Kemper is currently accepting new patients.

    Mitchell A. Hawkey
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    Experienced in Vitamin D Deficiency
    Nephrology | Internal Medicine
    9701 Southwest Barnes Road, Suite 110, 
    Portland, OR 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mitchell Hawkey is an Internal Medicine specialist and a Nephrologist in Portland, Oregon. Dr. Hawkey is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Polycystic Kidney Disease, and Autosomal Dominant Polycystic Kidney Disease. Dr. Hawkey is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    OHSU Hospital

    3181 SW Sam Jackson Park Rd, 
    Portland, OR 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Linda Lester is an Endocrinologist in Portland, Oregon. Dr. Lester is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Osteoporosis, Postmenopausal Osteoporosis, Hyperparathyroidism, and Juvenile Primary Osteoporosis.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology

    OHSU Hospital

    3181 SW Sam Jackson Park Rd, 
    Portland, OR 
     (1.3 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Paul Duell is an Endocrinologist in Portland, Oregon. Dr. Duell is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Familial Hypercholesterolemia, Defective Apolipoprotein B-100, Homozygous Familial Hypercholesterolemia (HoFH), and Heterozygous Familial Hypercholesterolemia (HeFH).

    Experienced in Vitamin D Deficiency
    Neonatology | Obstetrics and Gynecology
    Experienced in Vitamin D Deficiency
    Neonatology | Obstetrics and Gynecology

    OHSU Hospital

    3181 SW Sam Jackson Park Rd, 
    Portland, OR 
     (1.3 miles away)
    Languages Spoken:
    English

    Aaron Caughey is a Neonatologist and an Obstetrics and Gynecologist in Portland, Oregon. Dr. Caughey is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Gestational Diabetes, Endometritis, Erb's Palsy, Intrauterine Device Insertion, and Hysterectomy.

    Experienced in Vitamin D Deficiency
    Internal Medicine
    Experienced in Vitamin D Deficiency
    Internal Medicine

    OHSU Hospital

    3181 SW Sam Jackson Park Rd, 
    Portland, OR 
     (1.3 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Elizabeth Bower is a primary care provider, practicing in Internal Medicine in Portland, Oregon. Dr. Bower is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Migraine with Brainstem Aura, Acromegaly, Gigantism, and Sotos Syndrome. Dr. Bower is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    General Surgery
    Experienced in Vitamin D Deficiency
    General Surgery
    825 Northeast 20th Avenue, Suite 340, 
    Portland, OR 
     (1.9 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Emma Patterson is a General Surgeon in Portland, Oregon. Dr. Patterson is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Obesity in Children, Obesity, Vitamin D Deficiency, Sleeve Gastrectomy, and Gastrectomy. Dr. Patterson is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency
    1130 Northwest 22nd Avenue, Suite 640, 
    Portland, OR 
     (3.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Mark Nguyen is a Nephrologist in Portland, Oregon. Dr. Nguyen is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension. Dr. Nguyen is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency
    5050 Northeast Hoyt Street, Suite 315, 
    Portland, OR 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kyle Smoot is a Neurologist in Portland, Oregon. Dr. Smoot is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Multiple Sclerosis (MS), Relapsing Multiple Sclerosis (RMS), CACH Syndrome, and Neuromyelitis Optica. Dr. Smoot is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    Endocrinology
    Experienced in Vitamin D Deficiency
    Endocrinology
    5050 Northeast Hoyt Street, Suite 317, 
    Portland, OR 
     (4.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Diana Negreanu is an Endocrinologist in Portland, Oregon. Dr. Negreanu is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Hashimoto Thyroiditis, Neonatal Severe Hyperparathyroidism, Parathyroid Hyperplasia, and Familial Isolated Hyperparathyroidism. Dr. Negreanu is currently accepting new patients.

    Experienced in Vitamin D Deficiency
    Experienced in Vitamin D Deficiency
    9135 Southwest Barnes Road, Suite 461, 
    Portland, OR 
     (4.5 miles away)
    Languages Spoken:
    English

    Stanley Cohan is a Neurologist in Portland, Oregon. Dr. Cohan is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Multiple Sclerosis (MS), Relapsing Multiple Sclerosis (RMS), CACH Syndrome, and Encephalitis.

    Experienced in Vitamin D Deficiency
    Family Medicine | Sports Medicine
    Experienced in Vitamin D Deficiency
    Family Medicine | Sports Medicine
    9205 Southwest Barnes Road, 
    Portland, OR 
     (4.5 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Karl Kaluza is a Sports Medicine specialist and a Family Medicine provider in Portland, Oregon. Dr. Kaluza is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Pelvic Floor Dysfunction, Baker Cyst, Congenital Femoral Deficiency, and Tendinitis. Dr. Kaluza is currently accepting new patients.

    Leslie Steed
    Experienced in Vitamin D Deficiency
    Nephrology
    Experienced in Vitamin D Deficiency
    Nephrology

    Northwest Renal Clinic Inc.

    1130 NW 22nd Ave Ste 640, 
    Portland, OR 
     (3.1 miles away)
    Languages Spoken:
    English

    Leslie Steed is a Nephrologist in Portland, Oregon. Dr. Steed is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are End-Stage Renal Disease (ESRD), Chronic Kidney Disease, Nephrosclerosis, and Renovascular Hypertension.

    Advanced in Vitamin D Deficiency
    Internal Medicine
    Advanced in Vitamin D Deficiency
    Internal Medicine

    Office

    5005 NE Sandy Blvd, 
    Portland, OR 
     (3.6 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Eduardo Vides is a primary care provider, practicing in Internal Medicine in Portland, Oregon. Dr. Vides is rated as an Advanced provider by MediFind in the treatment of Vitamin D Deficiency. His top areas of expertise are Multiple Carboxylase Deficiency, Vitamin B12 Deficiency Anemia, Folate Deficiency, and Subacute Combined Degeneration.

    Julie Raggio
    Experienced in Vitamin D Deficiency
    Nephrology
    Experienced in Vitamin D Deficiency
    Nephrology
    10201 Southeast Main Street, Suite 27, 
    Portland, OR 
     (5.8 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Julie Raggio is a Nephrologist in Portland, Oregon. Dr. Raggio is rated as an Experienced provider by MediFind in the treatment of Vitamin D Deficiency. Her top areas of expertise are Chronic Kidney Disease, End-Stage Renal Disease (ESRD), Nephrosclerosis, and Renovascular Hypertension. Dr. Raggio is currently accepting new patients.

    Showing 1-20 of 148

    Last Updated: 02/22/2026

    What is the definition of Vitamin D Deficiency?

    Vitamin D deficiency is when the body does not have enough vitamin D. Vitamin D is necessary for absorbing calcium and healthy bones.

    When should I see a Vitamin D Deficiency doctor near Portland, OR?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Vitamin D Deficiency doctor near Portland, OR?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Vitamin D Deficiency doctors near Portland, OR?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Vitamin D Deficiency doctors near Portland, OR?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Vitamin D Deficiency doctor near Portland, OR?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Vitamin D Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Vitamin D Deficiency doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Vitamin D Deficiency doctor near Portland, OR?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Vitamin D Deficiency doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Vitamin D Deficiency doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Vitamin D Deficiency doctors near Portland, OR?

    Look for the filter feature on the left side of the Vitamin D Deficiency doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Vitamin D Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Vitamin D Deficiency doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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