Expertise in
7
conditions

Dr. Marlon Decastro

Family Medicine
Santa Rosa-Family Medicine
1162 Montgomery Dr Fl 2, 
Santa Rosa, CA 
Offers Telehealth

Expertise in
7
conditions
Santa Rosa-Family Medicine
1162 Montgomery Dr Fl 2, 
Santa Rosa, CA 
OverviewInsuranceLocationsSimilar Doctors

Overview

Marlon Decastro is a primary care provider, practicing in Family Medicine in Santa Rosa, California. Dr. Decastro is highly rated in 7 conditions, according to our data. His top areas of expertise are Childhood Iron Deficiency Anemia, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

Specialties
Family Medicine
Licenses
Internal Medicine in SC
Hospital Affiliations
Providence Santa Rosa Memorial Hospital
Petaluma Valley Hospital
Healdsburg Hospital
Languages Spoken
English
Gender
Male

Insurance

Accepted insurance can change. Please verify directly with the provider.

Find your insurance
Find your insuranceClose

Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Alignment Health Plan
  • MEDICARE MAPD
  • MEDICARE SNP
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Anthem
  • EPO
  • HMO
  • POS
  • PPO
Blue Cross Blue Shield
  • EPO
  • HMO
  • POS
  • PPO
Blue Shield of California
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE-MEDICAID PLAN
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Cambia Health Solutions
  • EPO
  • INSURANCE PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • PPO
Capital Blue Cross
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • OTHER MEDICARE PART D
  • PPO
CareFirst
  • HMO
  • POS
  • PPO
Change Healthcare
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Cigna
  • EPO
  • HMO
  • PPO
Health Care Services Corporation
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • OTHER COMMERCIAL
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
  • PPO
Health Net

Accepted plan types not found. Please verify directly with the provider.

Highmark
  • EPO
  • HMO
  • PPO
Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Kaiser Permanente
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • OTHER MEDICARE
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
Medicare
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE PART D
Moda Health
  • EPO
  • PPO
SCAN Health Plan
  • INSURANCE PLAN
  • MEDICARE MAPD
Sutter Health
  • HMO
  • OTHER COMMERCIAL
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Walgreens
  • MEDICARE DISCOUNT CARD
  • MEDICARE PDP
  • OTHER MEDICARE
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Western Health Advantage
  • HMO
  • INSURANCE PLAN
  • MEDICARE DISCOUNT CARD
  • MEDICARE MAPD
View 20 Less Insurance Carriers -

Locations

Santa Rosa-Family Medicine
1162 Montgomery Dr Fl 2, Santa Rosa, CA 95405
Call: 707-303-8301
Similar Doctors
Expertise in
2
conditions
Dr. Lana N. Nguyen
Family Medicine
Expertise in
2
conditions
Dr. Lana N. Nguyen
Family Medicine
3835 Cypress Dr, Suite 102, 
Petaluma, CA 
 (15.0 miles away)
707-765-2425
Languages Spoken:
English
See accepted insurances

Lana Nguyen is a primary care provider, practicing in Family Medicine in Petaluma, California. Dr. Nguyen is highly rated in 2 conditions, according to our data. Her top areas of expertise are Congenital Generalized Lipodystrophy and Familial Partial Lipodystrophy.

Andrew I. Schwartz
Expertise in
20
conditions
Dr. Andrew I. Schwartz
Family Medicine
Expertise in
20
conditions
Dr. Andrew I. Schwartz
Family Medicine

Rohnert Park Care Center

6000 State Farm Drive, Suite 150, 
Rohnert Park, CA 
 (6.4 miles away)
707-585-8347
Languages Spoken:
English
See accepted insurances
Accepting New Patients
Offers Telehealth

Andrew Schwartz is a primary care provider, practicing in Family Medicine in Rohnert Park, California. Dr. Schwartz is highly rated in 20 conditions, according to our data. His top areas of expertise are Diabetic Hyperglycemic Hyperosmolar Syndrome, Memory Loss, Type 2 Diabetes (T2D), and Maturity Onset Diabetes of the Young. Dr. Schwartz is currently accepting new patients.

Expertise in
9
conditions
Dr. William C. Walker
Family Medicine
Expertise in
9
conditions
Dr. William C. Walker
Family Medicine
2500 Alhambra Ave, 
Martinez, CA 
 (41.5 miles away)
925-370-5110
Languages Spoken:
English

William Walker is a primary care provider, practicing in Family Medicine in Martinez, California. Dr. Walker is highly rated in 9 conditions, according to our data. His top areas of expertise are Traumatic Brain Injury, Ear Barotrauma, Concussion, Post-Traumatic Stress Disorder (PTSD), and Thrombectomy.

VIEW MORE Family Medicine Doctors

Areas of Expertise

MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.

Learn more about MediFind’s expert tiers

Find Dr. Decastro's expertise for a condition
ConditionClose
      • Advanced
      • Childhood Iron Deficiency Anemia
        Dr. Decastro is
        Advanced
        . Learn about Childhood Iron Deficiency Anemia.
        See more Childhood Iron Deficiency Anemia experts
      • Familial Hypertension
        Dr. Decastro is
        Advanced
        . Learn about Familial Hypertension.
        See more Familial Hypertension experts
      • Glucocorticoid-Remediable Aldosteronism
        Dr. Decastro is
        Advanced
        . Learn about Glucocorticoid-Remediable Aldosteronism.
        See more Glucocorticoid-Remediable Aldosteronism experts
      • High Cholesterol
        Dr. Decastro is
        Advanced
        . Learn about High Cholesterol.
        See more High Cholesterol experts
      • Hypertension
        Dr. Decastro is
        Advanced
        . Learn about Hypertension.
        See more Hypertension experts
      • Idiopathic Edema
        Dr. Decastro is
        Advanced
        . Learn about Idiopathic Edema.
        See more Idiopathic Edema experts
      View All 7 Advanced Conditions
      • Experienced
      • Acute Kidney Failure
        Dr. Decastro is
        Experienced
        . Learn about Acute Kidney Failure.
        See more Acute Kidney Failure experts
      • Acute Mountain Sickness
        Dr. Decastro is
        Experienced
        . Learn about Acute Mountain Sickness.
        See more Acute Mountain Sickness experts
      • Addison's Disease
        Dr. Decastro is
        Experienced
        . Learn about Addison's Disease.
        See more Addison's Disease experts
      • Allergic Rhinitis
        Dr. Decastro is
        Experienced
        . Learn about Allergic Rhinitis.
        See more Allergic Rhinitis experts
      • Alopecia Areata
        Dr. Decastro is
        Experienced
        . Learn about Alopecia Areata.
        See more Alopecia Areata experts
      • Anemia
        Dr. Decastro is
        Experienced
        . Learn about Anemia.
        See more Anemia experts
      View All 152 Experienced Conditions
      Want to save this doctor for later?
      Sign Up
      Is this your doctor?
      Find A Second Opinion
      Not sure about your diagnosis?
      Check Your Symptoms
       
       
       
       
      Learn about our expert tiers
      Learn More
      Are you the provider on this profile?
      Claim Profile
      1. Homepage
      2. Family Medicine Doctors Santa Rosa, CA
      3. Dr. Marlon Decastro
      For Patients
      • Our Story
      • How MediFind Works
      • Conditions A-Z
      • Doctor Directory
      • Symptoms Directory
      • Procedures Directory
      • Treatment Directory
      • Drug Directory
      • Infusion Center Finder
      • FAQ
      • Contact Us
      For Providers and Practices
      • Claim Your Profile
      • Newsroom
      Business Solutions
      • Provider
      • Network Solutions
      Additional Resources
      • Consumer Health Data Privacy Policy
      • Privacy Policy
      • Terms of Use
      • Advertising Policy
      • Content Policy
      Subscribe to our newsletter

      Sign up to stay informed about MediFind and get wellness sent your way.

      Close

        By subscribing, I agree to MediFind's Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.

        Bullet PinMediFind
        Follow us on
        This information is not intended as a substitute for informed medical advice. You should work with a licensed professional to diagnose and treat health conditions. We let the data speak for itself, MediFind does not endorse any healthcare providers.
        © 2026 All Rights Reserved

        Request an Appointment

        If you are experiencing a medical emergency, call 9-1-1.

        MediFind will contact the provider for your appointment request. You’ll receive status updates by email. Your provider or MediFind will reach out to you directly by phone or email to schedule your appointment or request additional information.

          Close
          0 / 1000

          Please provide us with the below insurance information:

                By pressing the Submit button you are agreeing to MediFind’s Terms of Use, Privacy Policy and Consumer Health Data Privacy Policy, as applicable.