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Internal Medicine Providers in Montclair, CA

Browse 12 Internal Medicine providers listed in NPPES with a practice address in Montclair, California.

12 Healthcare Providers

How Montclair compares with the U.S.

Montclair has 32 clinicians in Internal Medicine per 100,000 residents, about 71% of the U.S. rate of 44.

That is 12 active clinicians in Internal Medicine with a practice address in Montclair, for a population of 37,810.

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.

100% of clinicians in Internal Medicine in Montclair listed in the CMS Medicare file (10 of 10) 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.

30% of clinicians in Internal Medicine in Montclair listed in the CMS Medicare file (3 of 10) 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 Montclair, CA

Source: CMS PECOS
PECOS Enrolled Specialists 12 In Montclair, CA
Part B Lab & Imaging Eligible 12 Diagnostic Referrals
DME Ordering Eligible 12 Durable Medical Equipment
Home Health Agency Referrals 12 HHA Ordering Eligible
Showing 1โ€“12 of 12 providers
With recent CMS data first, then Aโ€“Z

Dr. Mohammed Al-Khayyat , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9635 Monte Vista Ave Ste 205, Montclair, CA 917632235
Phone: 9096210009
NPI Identifier 1588195424
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Dr. Khanh Tan Duong , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9635 Monte Vista Ave Ste 208, Montclair, CA 917632235
Phone: 9092550199
NPI Identifier 1225528466
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Dr. Sadia S Khan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4959 Palo Verde St, Suite 204 A, Montclair, CA 917632331
Phone: 9093980497
NPI Identifier 1225271125
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Dr. George Moran , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9525 Monte Vista Ave Ste 105, Montclair, CA 917632231
Phone: 9096261205
NPI Identifier 1639673635
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Dr. Kiandokht Partovi , MD

Internal Medicine

Active NPI Status
5153 Holt Blvd Ste B1, Montclair, CA 917634837
Phone: 5596919730
NPI Identifier 1689763427
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Dr. Atif Qadeer , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9525 Monte Vista Ave # 105, Montclair, CA 917632231
Phone: 9096261205
NPI Identifier 1730160201
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Dr. Ali Salem , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
9525 Monte Vista Ave Ste 105, Montclair, CA 917632231
Phone: 9096261205
NPI Identifier 1376983122
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Dr. Jose Adriano Santiago , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9525 Monte Vista Ave Ste 105, Montclair, CA 917632231
Phone: 9096261205
NPI Identifier 1790763191
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Dr. Nicole Denise Sims , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9655 Monte Vista Ave Ste 402, Montclair, CA 917632238
Phone: 9096261205
NPI Identifier 1932417417
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Dr. Tha Sok , DO

Internal Medicine

Active NPI Status
9525 Monte Vista Ave Unit 105, Montclair, CA 917632208
Phone: 9096261205
NPI Identifier 1396431656
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Dr. Timothy Yo Wu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9525 Monte Vista Ave # 105, Montclair, CA 917632231
Phone: 9097312715
NPI Identifier 1700375656
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Dr. Dion Adiputra Kencana , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9525 Monte Vista Ave Unit 105, Montclair, CA 917632208
Phone: 9096261205
NPI Identifier 1528709805
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Frequently Asked Questions about Internal Medicine in Montclair

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 Montclair

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