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Internal Medicine Providers in Orange, CA

Browse 187 Internal Medicine providers listed in NPPES with a practice address in Orange, California.

187 Healthcare Providers

How Orange compares with the U.S.

Orange has 135 clinicians in Internal Medicine per 100,000 residents, 3.0 times the U.S. rate of 44.

That is 187 active clinicians in Internal Medicine with a practice address in Orange, for a population of 138,266.

The California rate is 45 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places. Cities with hospitals or large medical centers often list more specialists than the number of residents alone would suggest, because patients also come from nearby areas.

93% of clinicians in Internal Medicine in Orange listed in the CMS Medicare file (116 of 125) accept Medicare assignment. That is similar to the California share of 96%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

35% of clinicians in Internal Medicine in Orange listed in the CMS Medicare file (44 of 125) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the California share of 38%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in Orange, CA

Source: CMS PECOS
PECOS Enrolled Specialists 157 In Orange, CA
Part B Lab & Imaging Eligible 162 Diagnostic Referrals
DME Ordering Eligible 163 Durable Medical Equipment
Home Health Agency Referrals 162 HHA Ordering Eligible
Showing 1โ€“20 of 187 providers
With recent CMS data first, then Aโ€“Z

Dr. Sonja Abbassi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2501 E Chapman Ave, Orange, CA 928693204
Phone: 7146283345
NPI Identifier 1225426851
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Dr. Jane Abdelhadi , MD

Internal Medicine

Active NPI Status
1310 W Stewart Dr, Suite 410, Orange, CA 928683854
Phone: 7146399401
NPI Identifier 1124097100
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Dr. Aladean Abdrabbo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2501 E Chapman Ave, Suite 311, Orange, CA 928693204
Phone: 7146331011
NPI Identifier 1578905675
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Dr. Parinaz Abiri , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 7144568888
NPI Identifier 1376122416
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Dr. Garima Agrawal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 7144568888
NPI Identifier 1962933499
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Dr. Uzma Ahmed , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1234 W Chapman Ave Ste 101, Orange, CA 928682862
Phone: 7145326713
NPI Identifier 1699185611
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Dr. Mohammad Aimal Ahmed-Khan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 7144568888
NPI Identifier 1114505781
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Dr. Mohamad Albouidani , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
600 City Pkwy W, Orange, CA 92868
Phone: 7145393100
NPI Identifier 1770670713
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Dr. Edwin R Alexander , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1140 W La Veta Ave, Orange, CA 928684227
Phone: 7145507575
NPI Identifier 1659315752
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Dr. Yadani Al-Saleh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1234 W Chapman Ave Ste 101, Orange, CA 928682862
Phone: 7145326713
NPI Identifier 1083077283
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Dr. Saif Al Yaseen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2501 E Chapman Ave, Orange, CA 928693204
Phone: 7146331011
NPI Identifier 1356684096
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Dr. Jay S Amin , MD

Internal Medicine

Active NPI Status
6027 E West View Dr, Orange, CA 928694323
Phone: 7142353959
NPI Identifier 1568564193
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Millie Arora

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, City Tower, Suite 400, Orange, CA 928683201
Phone: 7144565691
NPI Identifier 1003347527
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Dr. Marian Fouad Sabet Assal , MD

Internal Medicine

Active NPI Status
101 The City Dr S, Bldg. 200, Ste 835, Rt. 81 Zc 1150, Orange, CA 928683201
Phone: 7149254233
NPI Identifier 1669630596
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Dr. Punit Bavishi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 7144568888
NPI Identifier 1184045809
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Brian Becerra

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
101 The City Dr S, City Tower, Ste 400, Orange, CA 928683201
Phone: 7144565691
NPI Identifier 1497287619
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Dr. Rosine Bekarian , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 8004653203
NPI Identifier 1487159489
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Thomas L. Blair , INTERNAL MEDICINE

Internal Medicine

Active NPI Status
725 W La Veta Ave, Suite 110, Orange, CA 928684403
Phone: 7145387060
NPI Identifier 1417053422
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Dr. Almaz Borjoev , MD

Internal Medicine

Active NPI Status
725 W La Veta Ave, Orange, CA 928684403
Phone: 7147718000
NPI Identifier 1518454339
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Dr. Miguel Angel Chavez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
101 The City Dr S, Orange, CA 928683201
Phone: 7144568888
NPI Identifier 1649703125
View Full Profile

Frequently Asked Questions about Internal Medicine in Orange

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.