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Internal Medicine Providers in Oceanside, CA

Browse 30 Internal Medicine providers listed in NPPES with a practice address in Oceanside, California.

30 Healthcare Providers

How Oceanside compares with the U.S.

Oceanside has 17 clinicians in Internal Medicine per 100,000 residents, about 39% of the U.S. rate of 44.

That is 30 active clinicians in Internal Medicine with a practice address in Oceanside, for a population of 172,242.

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.

86% of clinicians in Internal Medicine in Oceanside listed in the CMS Medicare file (19 of 22) accept Medicare assignment. That is lower than 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.

23% of clinicians in Internal Medicine in Oceanside listed in the CMS Medicare file (5 of 22) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than 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 Oceanside, CA

Source: CMS PECOS
PECOS Enrolled Specialists 26 In Oceanside, CA
Part B Lab & Imaging Eligible 26 Diagnostic Referrals
DME Ordering Eligible 26 Durable Medical Equipment
Home Health Agency Referrals 26 HHA Ordering Eligible
Showing 1โ€“20 of 30 providers
With recent CMS data first, then Aโ€“Z

Dr. May Al-Mukhtar , MD

Internal Medicine

Active NPI Status
2201 Mission Ave Ste 200, Oceanside, CA 920582313
Phone: 7608267223
NPI Identifier 1437809704
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Dr. David G. Antoun , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 7607248411
NPI Identifier 1043573785
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Dr. Jeffrey Ross Belanoff , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2205 Vista Way, Oceanside, CA 920545661
Phone: 7607045630
NPI Identifier 1962426510
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Dr. Karanbir Brar , MD

Internal Medicine

Active NPI Status
2424 Vista Way Ste 105, Oceanside, CA 920546178
Phone: 8582093717
NPI Identifier 1306191473
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Dr. Paul Thuy Quang Dang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 4803104363
NPI Identifier 1801882592
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Dr. Richard Barton Day , MD

Internal Medicine

Active NPI Status
3156 Vista Way, 405, Oceanside, CA 920563622
Phone: 7604396581
NPI Identifier 1386716959
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Dr. Kaveh Farhoomand , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3231 Waring Ct, Ste G, Oceanside, CA 920564510
Phone: 7607583830
NPI Identifier 1447249040
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Dr. Denise Gomez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
605 Crouch St Bldg C, Oceanside, CA 920544415
Phone: 7607574566
NPI Identifier 1407871817
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Dr. Nagi Ibrahim , MD

Internal Medicine

Active NPI Status
2122s El Camino Real 102, Oceanside, CA 920546209
Phone: 7604532700
NPI Identifier 1174509756
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Dr. Catherine Jean Lawson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3230 Waring Ct Ste J, Oceanside, CA 920564509
Phone: 7609414498
NPI Identifier 1649279043
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Dr. Robert S Lee , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 7604396581
NPI Identifier 1528081155
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Dr. Paul Edward Lizotte , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
115 North El Camino Real Suite A, 115 North El Camino Real Suite A, Oceanside, CA 920581844
Phone: 7603305055
NPI Identifier 1699855841
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Dr. Matthew Timothy Long , DO, MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 7609662499
NPI Identifier 1740863273
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Dr. Claire M Mccutcheon , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 7607248411
NPI Identifier 1689028060
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Dr. Israa Abdulkarim Najeeb , MD, MMBCH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1302 Rocky Point Dr, Oceanside, CA 920565864
Phone: 8335742273
NPI Identifier 1265182356
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Dr. Sabiha Pasha , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2424 Vista Way Ste 106, Oceanside, CA 920546178
Phone: 8583821737
NPI Identifier 1871529461
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Dr. Richard K. Petyn , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4318 Mission Ave, Oceanside, CA 920576541
Phone: 7609015060
NPI Identifier 1376625004
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Dr. Elmera Peyman , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920564506
Phone: 7607248411
NPI Identifier 1457093163
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Dr. Nadia Rizvi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Tricity Medical Center, Oceanside, CA 920564506
Phone: 6192590798
NPI Identifier 1184065922
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Dr. Angela Shih , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4002 Vista Way, Oceanside, CA 920561116
Phone: 7609662499
NPI Identifier 1477088912
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Frequently Asked Questions about Internal Medicine in Oceanside

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.