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Internal Medicine Providers in Arcadia, CA

Browse 74 Internal Medicine providers listed in NPPES with a practice address in Arcadia, California.

74 Healthcare Providers

How Arcadia compares with the U.S.

Arcadia has 134 clinicians in Internal Medicine per 100,000 residents, 3.0 times the U.S. rate of 44.

That is 74 active clinicians in Internal Medicine with a practice address in Arcadia, for a population of 55,170.

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.

96% of clinicians in Internal Medicine in Arcadia listed in the CMS Medicare file (50 of 52) 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.

27% of clinicians in Internal Medicine in Arcadia listed in the CMS Medicare file (14 of 52) 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 Arcadia, CA

Source: CMS PECOS
PECOS Enrolled Specialists 64 In Arcadia, CA
Part B Lab & Imaging Eligible 64 Diagnostic Referrals
DME Ordering Eligible 65 Durable Medical Equipment
Home Health Agency Referrals 64 HHA Ordering Eligible
Showing 1โ€“20 of 74 providers
With recent CMS data first, then Aโ€“Z
Active NPI Status Accepts Medicare Assignment
450 E Huntington Dr, Arcadia, CA 910063748
Phone: 6267952244
NPI Identifier 1760654719
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Dr. Vincent Lloyd Antosz , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
300 W Huntington Dr, Arcadia, CA 910073402
Phone: 6267952244
NPI Identifier 1831150135
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Dr. Beverly Susan Botnick , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
440 E Huntington Dr Ste 200, Arcadia, CA 910063775
Phone: 6262542293
NPI Identifier 1790754455
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Dr. Phillip Joseph Cabasso , MD

Internal Medicine

Active NPI Status
612 W Duarte Rd, #303, Arcadia, CA 910077602
Phone: 6264479397
NPI Identifier 1609812841
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Dr. Harrison Chen , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
300 W Huntington Dr Rm No52, Arcadia, CA 910073402
Phone: 2657434426
NPI Identifier 1841829793
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Dr. Kuancheng Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
622 W Duarte Rd Ste 306, Arcadia, CA 910079282
Phone: 6268219075
NPI Identifier 1235125790
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Dr. Pai-Hsiang Chen , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
301 W Huntington Dr, Suite 310, Arcadia, CA 910073462
Phone: 6264462360
NPI Identifier 1063405892
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Dr. Wei Lin Chen , DO

Internal Medicine

Active NPI Status
450 E Huntington Dr, Arcadia, CA 910063748
Phone: 6267952244
NPI Identifier 1487800173
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Dr. Sam P Chia , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
224 S Santa Anita Ave, Arcadia, CA 910063521
Phone: 6264475800
NPI Identifier 1346262631
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Dr. Wen-Che Chung , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
909 S Santa Anita Ave Ste B, Arcadia, CA 910062363
Phone: 6267108766
NPI Identifier 1891754149
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Dr. Eric Melvin Chwa , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
632 W Duarte Rd Ste 180, Arcadia, CA 910077609
Phone: 6268216411
NPI Identifier 1962433607
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Dr. Nilar Myint Chwa , MD

Internal Medicine

Active NPI Status
632 W Duarte Rd Ste 180, Arcadia, CA 910077609
Phone: 6268216411
NPI Identifier 1316978067
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Dr. Dino Clarizio , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1505 S Baldwin Ave, Suite A, Arcadia, CA 910077925
Phone: 6268213290
NPI Identifier 1437165602
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Dr. Edvard Davtyan , MD, BSRS, RT(R)(F)

Internal Medicine

Active NPI Status Accepts Medicare Assignment
440 E Huntington Dr Ste 200, Arcadia, CA 910063775
Phone: 6262542293
NPI Identifier 1609516343
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Dr. Ivonne Diaz , MD

Internal Medicine

Active NPI Status
440 E Huntington Dr Ste 200, Arcadia, CA 910063775
Phone: 6267952244
NPI Identifier 1972739035
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Dr. Aivi Tang Doan , MD, MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
440 E Huntington Dr Ste 200, Arcadia, CA 910063775
Phone: 6262542293
NPI Identifier 1316301658
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Dr. Joseph J Elterman , MD

Internal Medicine

Active NPI Status
440 E Huntington Dr Ste 200, Arcadia, CA 910063775
Phone: 6262542293
NPI Identifier 1457375040
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Dr. Trang D Eng , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
450 E Huntington Dr, Arcadia, CA 910063748
Phone: 6264621891
NPI Identifier 1932461241
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Dr. Levon Haik Gazarian , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
501 S 1st Ave Ste G, Arcadia, CA 910063881
Phone: 6264461190
NPI Identifier 1538270749
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Dr. Maral Christine Gazarian , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
501 S 1st Ave Ste G, Arcadia, CA 910063881
Phone: 6264461190
NPI Identifier 1477966885
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Frequently Asked Questions about Internal Medicine in Arcadia

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.