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NPISignal

Individual Healthcare Provider

Constantine Melitas, M.D.

NPI Record: ActiveInternal Medicine — Gastroenterology
NPI1154731321
Santa Maria, California

Provider's NPPES record last updated: October 2, 2024

Overview

Entity Type
Individual Healthcare Provider
NPI
1154731321
Primary Specialty
Internal Medicine — Gastroenterology
Practice Location
Santa Maria, California
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 21, 2026, 4:30 PM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Internal Medicine

    Gastroenterology

    Allopathic & Osteopathic Physicians

    Primary

    An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

    Taxonomy code 207RG0100X
  • Student in an Organized Health Care Education/Training Program

    Student, Health Care

    An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.

    Taxonomy code 390200000X

Provider-Reported License Information

Internal Medicine (California)
A167829
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

1325 E Church St Ste 202

Santa Maria, California 93454-5915

Phone: (805) 346-3456

Additional Practice Location

850 Fair Oaks Ave Ste 220

Arroyo Grande, California 93420-3929

Phone: (805) 434-5530

Additional Practice Location

1304 Ella St Ste A

San Luis Obispo, California 93401-4165

Phone: (805) 549-9555

Fax: (805) 549-0444

Additional Practice Location

350 Posada Ln Ste 202

Templeton, California 93465-4060

Phone: (805) 434-5497

Fax: (805) 434-0917

Additional Practice Location

16001 W 9 Mile Rd

Southfield, Michigan 48075-4818

Phone: (248) 849-3000

Additional Practice Location

2650 Ridge Avenue

Evanston, Illinois 60201

Phone: (847) 570-2509

Additional Practice Location

316 S Stratford Ave Ste B

Santa Maria, California 93454-5908

Phone: (805) 332-8446

Record Information

Enumeration Date
April 28, 2014
Provider's NPPES Record Last Updated
October 2, 2024
Certification Date
October 2, 2024
NPISignal NPPES Dataset
August 2026

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