Constantine Melitas
Expertise in
7
conditions

Dr. Constantine Melitas

Gastroenterology
1325 E Church St, Suite 202, 
Santa Maria, CA 
Accepting New Patients
Offers Telehealth
Referral may be required
Before you request
Expertise in
7
conditions
1325 E Church St, Suite 202, 
Santa Maria, CA 

Overview

My approach to patient care is based on an individualized care plan which provides distinctive advanced medical and procedural therapy yet also meeting the unique emotional needs of each patient. I pride myself on utilizing both the cognitive and procedural aspects of my Advanced Therapeutic and Gastroenterologic training in providing cutting edge and evidence based care to my patients. Dr. Melitas earned his Medical degree from Spartan Health Sciences University and is Board Certified in Gastroenterology and Internal Medicine.He completed an Advanced Therapeutic Endoscopy Fellowship at University of Illinois at Chicago and a Gastroenterology Fellowship at Michigan State University.As an advanced therapeutic endoscopist, Dr. Melitas has been trained to manage many complex gastrointestinal, pancreatic, biliary, and liver diseases endoscopically.Dr. Melitas is active in several Medical Associations including the American Society for Gastrointestinal Endoscopy, the American College of Gastroenterology and the American Gastroenterological Association.

Dr. Melitas is highly rated in 7 conditions, according to our data. His clinical expertise encompasses Jaundice, Bile Duct Obstruction, Cholangitis, Acute Pancreatitis, and Endoscopy.

Dr. Melitas is board certified in Internal Medicine (Sub: Gastroenterology) and Internal Medicine. He is actively involved in clinical research, co-authoring 12 peer reviewed articles. Dr. Melitas is currently accepting new patients.

Specialties

Gastroenterology

Licenses

Internal Medicine in CA

Board Certifications

Internal Medicine (Sub: Gastroenterology)
Internal Medicine

Fellowships

Michigan State University (Ascension Providence) Program
University of Illinois at Chicago

Hospital Affiliations

Arroyo Grande Community Hospital
French Hospital Medical Center
Marian Regional Medical Center
Adventist Health Twin Cities
Adventist Health Sierra Vista
French Hospital Medical Center
Marian Regional Medical Center

Languages Spoken

English

Gender

Male

Insurance

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

Find your insurance
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Accepted insurance plans:

Aetna
  • EPO
  • HMO
  • POS
  • PPO
Alignment Health Plan
  • MEDICARE MAPD
  • MEDICARE SNP
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
Anthem BCBS
  • 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
Cigna
  • EPO
  • HMO
  • PPO
Health Net

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

Humana
  • HMO
  • INDEMNITY
  • POS
  • PPO
Managed Medicaid
  • OTHER MANAGED MEDICAID
Medicaid
  • OTHER MEDICAID
  • STATE MEDICAID
UnitedHealthcare
  • EPO
  • HMO
  • POS
  • PPO
Wellcare
  • EPO
  • HMO
  • INSURANCE PLAN
  • MANAGED MEDICAID PLAN
  • MEDICARE MAPD
  • MEDICARE PDP
  • MEDICARE SNP
  • MEDICARE-MEDICAID PLAN
  • OTHER MEDICARE
  • OTHER MEDICARE PART D
View 6 Less Insurance Carriers -

Locations

Surgical Oncology - Dignity Health - Santa Maria, CA
1325 E Church St, Suite 202, Santa Maria, CA 93454

Additional Areas of Focus

Dr. Melitas has provided the following conditions as areas of focus. Please note that we may not have enough data to validate their experience in some of these conditions.

Non-Alcoholic Fatty Liver Disease
Nonalcoholic Steatohepatitis (NASH)

Clinical Research

Clinical research consists of overseeing clinical studies of patients undergoing new treatments and therapies, and publishing articles in peer reviewed medical journals. Providers who actively participate in clinical research are generally at the forefront of the fields and aware of the most up-to-date advances in treatments for their patients.

12 Total Publications

Bottoms up: A Rare Case of Rectal Cancer to the Pancreas.
Bottoms up: A Rare Case of Rectal Cancer to the Pancreas.
Journal: ACG case reports journal
Published: September 12, 2025
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Before you request

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361 Town Center West, Ste 101, 
Santa Maria, CA 
 (4.3 miles away)
805-922-6581
Languages Spoken:
English
See accepted insurances
Accepting New Patients

We understand that visiting the gastroenterologist may be a new experience for you and that you may be in pain or worried about your health. That?s why all the staff at the Santa Maria Digestive Diagnostic Center and Santa Maria Gastroenterology focus on making you feel comfortable and confident in our care. Our physicians and our medical team take extra care to listen to your concerns, answer all your questions and thoroughly explain your condition and treatment options. Dr. Nastaskin is highly rated in 38 conditions, according to our data. His clinical expertise encompasses Familial Adenomatous Polyposis, Turcot Syndrome, Gardner Syndrome, Endoscopy, and Gastrectomy. Dr. Nastaskin is board certified in Internal Medicine (Sub: Gastroenterology). Dr. Nastaskin is currently accepting new patients.

Frequently Asked Questions about Dr. Constantine Melitas

How do I make an appointment with Dr. Constantine Melitas?

You can book an appointment with Dr. Constantine Melitas by calling their office at 805-346-3456. MediFind provides direct contact information so you can schedule visits, second opinions, or consultations without navigating third-party calendars.

Is Dr. Constantine Melitas a top-rated expert for Jaundice?

MediFind is an objective health platform that identifies experts based on real-world data. Dr. Constantine Melitas is classified as an Advanced expert for Jaundice, meaning they are among the top experts in the country for this condition. This ranking is based on their volume of patients, published research, and peer connections.

What conditions does Dr. Constantine Melitas specialize in?

While Dr. Constantine Melitas is a Gastroenterology, they have specific expertise in Jaundice, Bile Duct Obstruction, and Cholangitis. MediFind analyzes a doctor's articles and referral patterns to identify their specific areas of focus within Gastroenterology.

Does Dr. Constantine Melitas participate in research or clinical trials?

Yes. Dr. Constantine Melitas has published 12 articles and abstracts on conditions like Jaundice. You can view a list of Dr. Constantine Melitas's latest peer-reviewed publications and clinical trial participation on their profile to see if they are active in new treatments.

Does Dr. Constantine Melitas accept my insurance?

Dr. Constantine Melitas accepts most major insurance plans, including Aetna and Alignment Health Plan. We recommend calling the office directly at 805-346-3456 to verify that your specific plan is currently accepted before your visit.

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

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