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DONALD R. ABRAHM M.D., INC
NPI 1366617839
Internal Medicine - Gastroenterology in Newport Beach, CA

Active since April 25, 2008
1525 SUPERIOR AVE, SUITE 104, NEWPORT BEACH, CA 92663(949) 631-2670(949) 631-7137 Get Directions Write a Review

NPPES record last updated: April 25, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Donald R. Abrahm M.d., Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DONALD R. ABRAHM M.D., INC (NPI 1366617839) is a healthcare organization registered as a gastroenterology in Newport Beach, California and active in the NPI registry since April 2008. The organization lists Donald Robert Abrahm, Physician, as its authorized official.

NPPES Registry Identity

NPI1366617839
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameDONALD R. ABRAHM M.D., INC
Location Address1525 SUPERIOR AVE, SUITE 104Newport Beach, CA 92663-3639
Mailing Address1525 Superior Ave, Suite 104Newport Beach, CA 92663-3639 · (949) 631-2670 · Fax (949) 631-7137
Phone(949) 631-2670
Fax(949) 631-7137
Organization SubpartNo
Authorized OfficialDonald Robert AbrahmPhysician · (949) 631-2670
Enumeration DateApril 25, 2008
✔ NPI 1366617839 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · G51196
Definition
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.
1525 SUPERIOR AVE, Newport Beach, CA 92663
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Donald R. Abrahm M.d., Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by February 28, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20081001000015Non-DME Part B · Clinic/Group PracticeDue dateFebruary 28, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Donald R. Abrahm M.D., Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Donald Abrahm, M.D.
Gastroenterology
NPI 1215022405
1525 SUPERIOR AVENUE SUITE 104
Newport Beach, CA 92663
(949) 631-2670
✔ PECOS✔ Accepts MedicareSame address
Rooba Wardeh, M.D
Pathology
NPI 1831388206
101 THE CITY DR S
Orange, CA 92868
(714) 456-6141
✔ PECOS✔ Accepts Medicare11 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Donald R. Abrahm M.D., Inc's NPI number?

The NPI number for Donald R. Abrahm M.D., Inc is 1366617839. It was assigned to this organization in the NPPES registry on April 25, 2008.

Where is Donald R. Abrahm M.D., Inc located?

Donald R. Abrahm M.D., Inc is located at 1525 Superior Ave Suite 104, Newport Beach, CA 92663. The listed phone number is (949) 631-2670.

What is Donald R. Abrahm M.D., Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Donald R. Abrahm M.D., Inc enrolled in Medicare?

Yes. Donald R. Abrahm M.D., Inc is registered in the Medicare PECOS enrollment system.

When is Donald R. Abrahm M.D., Inc's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by February 28, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Donald R. Abrahm M.D., Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Donald R. Abrahm M.D., Inc, in Gastroenterology and Pathology. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Donald R. Abrahm M.D., Inc was last updated on April 25, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.