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Internal Medicine Providers in Downey, CA

Browse 114 Internal Medicine providers listed in NPPES with a practice address in Downey, California.

114 Healthcare Providers

How Downey compares with the U.S.

Downey has 103 clinicians in Internal Medicine per 100,000 residents, 2.3 times the U.S. rate of 44.

That is 114 active clinicians in Internal Medicine with a practice address in Downey, for a population of 110,939.

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.

99% of clinicians in Internal Medicine in Downey listed in the CMS Medicare file (72 of 73) 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.

16% of clinicians in Internal Medicine in Downey listed in the CMS Medicare file (12 of 73) 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 Downey, CA

Source: CMS PECOS
PECOS Enrolled Specialists 102 In Downey, CA
Part B Lab & Imaging Eligible 102 Diagnostic Referrals
DME Ordering Eligible 106 Durable Medical Equipment
Home Health Agency Referrals 102 HHA Ordering Eligible
Showing 1โ€“20 of 114 providers
With recent CMS data first, then Aโ€“Z

Dr. Mark Ferdinand Adriatico , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10800 Paramount Blvd, 406, Downey, CA 902413331
Phone: 5628691070
NPI Identifier 1194913608
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Dr. Shangida Ahsan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10441 Lakewood Blvd, Downey, CA 902412870
Phone: 5628691089
NPI Identifier 1639638463
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Dr. Sameer Amin , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10000 Lakewood Blvd, Downey, CA 902404020
Phone: 5628623684
NPI Identifier 1326164633
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Dr. Ashkan Amooee , MD

Internal Medicine

Active NPI Status
11525 Brookshire Ave Ste 400, Downey, CA 902414982
Phone: 3232016800
NPI Identifier 1285954149
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Dr. Muhammad Farooq Anees , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10441 Lakewood Blvd Ste Ab, Downey, CA 902412744
Phone: 5628691070
NPI Identifier 1730323353
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Dr. Jose M Anguiano , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10000 Lakewood Blvd, Downey, CA 902404020
Phone: 5628623684
NPI Identifier 1841637576
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Dr. Ava Azimi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
11500 Brookshire Ave, Downey, CA 902414917
Phone: 5629045000
NPI Identifier 1023252483
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Dr. Raj Balasundaram , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10441 Lakewood Blvd Ste Ab, Downey, CA 902412744
Phone: 5628691070
NPI Identifier 1083840367
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Dr. Domingo Chua Barrientos , MD

Internal Medicine

Active NPI Status
10800 Paramount Blvd, Suite 203, Downey, CA 902413331
Phone: 5628691322
NPI Identifier 1184685281
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Dr. Jasbir Singh Bhaika , MD

Internal Medicine

Active NPI Status
10441 Lakewood Blvd Ste A&b, Downey, CA 902412870
Phone: 5628691089
NPI Identifier 1255837530
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Dr. Arthur Carrasco , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
8255 Firestone Blvd, Suite 501, Downey, CA 902414800
Phone: 5623192085
NPI Identifier 1588601595
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Dr. Nicole Cervantes , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
8530 Firestone Blvd, Downey, CA 902414926
Phone: 5628677999
NPI Identifier 1174985816
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Dr. Hassan Ali Chahine , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
8301 Florence Ave Ste 301, Downey, CA 902403948
Phone: 8663333158
NPI Identifier 1518326933
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Dr. Sepideh Chegini , MD

Internal Medicine

Active NPI Status
10000 Lakewood Blvd, Downey, CA 902404020
Phone: 5628623684
NPI Identifier 1871547075
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Dr. Mihaela Cristina Chelu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9449 Imperial Hwy, Downey, CA 902422814
Phone: 5622723383
NPI Identifier 1457614174
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Dr. David Hao Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
10441 Lakewood Blvd Ste Ab, Downey, CA 902412870
Phone: 5628691070
NPI Identifier 1295315489
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Dr. Michael Yee Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9449 Imperial Hwy, Orchard Suite B-216, Downey, CA 902422814
Phone: 8008234040
NPI Identifier 1629217138
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Dr. Stephen Sam-Fong Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9333 Imperial Highway, Downey, CA 902422812
Phone: 5626579000
NPI Identifier 1083844179
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Dr. Kim Chong , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9449 Imperial Hwy, Downey, CA 902422814
Phone: 8008234040
NPI Identifier 1316124431
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Dr. Stanley D Crittenden , MD

Internal Medicine

Active NPI Status
10000 Lakewood Blvd, Downey, CA 902404020
Phone: 5628623684
NPI Identifier 1477764678
View Full Profile

Frequently Asked Questions about Internal Medicine in Downey

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.