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Internal Medicine Providers in San Gabriel, CA

Browse 24 Internal Medicine providers listed in NPPES with a practice address in San Gabriel, California.

24 Healthcare Providers

How San Gabriel compares with the U.S.

San Gabriel has 63 clinicians in Internal Medicine per 100,000 residents, about 1.4 times the U.S. rate of 44.

That is 24 active clinicians in Internal Medicine with a practice address in San Gabriel, for a population of 38,392.

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.

89% of clinicians in Internal Medicine in San Gabriel listed in the CMS Medicare file (16 of 18) 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.

56% of clinicians in Internal Medicine in San Gabriel listed in the CMS Medicare file (10 of 18) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is higher 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 San Gabriel, CA

Source: CMS PECOS
PECOS Enrolled Specialists 20 In San Gabriel, CA
Part B Lab & Imaging Eligible 20 Diagnostic Referrals
DME Ordering Eligible 20 Durable Medical Equipment
Home Health Agency Referrals 20 HHA Ordering Eligible
Showing 1โ€“20 of 24 providers
With recent CMS data first, then Aโ€“Z

Dr. Kenneth Mankin Chan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
207 S Santa Anita Ave, San Gabriel, CA 917761146
Phone: 6269433229
NPI Identifier 1861422370
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Dr. Michelle L. Chan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1726 New Ave, San Gabriel, CA 917763734
Phone: 6269430780
NPI Identifier 1043326283
View Full Profile

Dr. Araceli David Chanbonpin , MD

Internal Medicine

Active NPI Status
225 E Las Tunas Dr, San Gabriel, CA 917761414
Phone: 6262855700
NPI Identifier 1962572909
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Dr. Jennifer Chen , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
416 W Las Tunas Dr Ste 303, San Gabriel, CA 917761236
Phone: 6265710111
NPI Identifier 1548335516
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Dr. Peter Hor-Tao Chiu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
416 W Las Tunas Dr, Suite303, San Gabriel, CA 917761236
Phone: 6262997100
NPI Identifier 1740338151
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Dr. Aaron I-Lun Jeng , MD, MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
438 W Las Tunas Dr, San Gabriel, CA 917761216
Phone: 6262895454
NPI Identifier 1003053851
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Dr. Le-Young Lee , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
127-B W Las Tunas Drive, San Gabriel, CA 91776
Phone: 6264578600
NPI Identifier 1861417586
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Dr. Su Kin Lee , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1418 S San Gabriel Blvd. , Suite C, San Gabriel, CA 91776
Phone: 6262931988
NPI Identifier 1871510370
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Dr. Charles Cheng-Wen Lin , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1034 S San Gabriel Blvd, San Gabriel, CA 917763113
Phone: 6252878222
NPI Identifier 1982719225
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Dr. Michael Ma , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
933 Walnut St, San Gabriel, CA 917762836
Phone: 6263725922
NPI Identifier 1891945804
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Dr. William Ng , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
506 W Valley Blvd, San Gabriel, CA 917765716
Phone: 4084693856
NPI Identifier 1518298041
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Dr. Hy Phung Ngo , MD

Internal Medicine

Active NPI Status Telehealth Services Available
625 E Valley Blvd, Suite H&i, San Gabriel, CA 917763591
Phone: 6265724658
NPI Identifier 1871658492
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Dr. Jeff Sao , MD

Internal Medicine

Active NPI Status
721 El Monte St, San Gabriel, CA 917762632
Phone: 6267314000
NPI Identifier 1205098423
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Dr. Khee H Tan , MD

Internal Medicine

Active NPI Status
1436 S San Gabriel Blvd, San Gabriel, CA 917763656
Phone: 6262807055
NPI Identifier 1881720092
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Dr. Emerald S Tay , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
222 E Valley Blvd, San Gabriel, CA 917763521
Phone: 6263078636
NPI Identifier 1255331294
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Dr. Tai Hing Wu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
415 W Valley Blvd, C, San Gabriel, CA 917763728
Phone: 6269439240
NPI Identifier 1417963661
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Dr. Kevin Yao , MD MPH

Internal Medicine

Active NPI Status Accepts Medicare Assignment
533 W Las Tunas Dr Unit 201, San Gabriel, CA 917761133
Phone: 6262842000
NPI Identifier 1588306625
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Dr. Yu Yao , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
230 E Valley Blvd, Suite 200, San Gabriel, CA 917766507
Phone: 6262881918
NPI Identifier 1356307821
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Dr. Thomas Shengyuan Yu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1448 S San Gabriel Blvd, San Gabriel, CA 917763656
Phone: 6262880300
NPI Identifier 1588844104
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Dr. Zhi Zeng , MD

Internal Medicine

Active NPI Status Telehealth Services Available
316 E Las Tunas Dr Ste 102, San Gabriel, CA 917761504
Phone: 6263008880
NPI Identifier 1093801854
View Full Profile

Frequently Asked Questions about Internal Medicine in San Gabriel

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.

Other Specialties in San Gabriel

Internal Medicine Providers in Other California Cities

Cities with the most listed practitioners first.