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Internal Medicine Providers in Danville, CA

Browse 20 Internal Medicine providers listed in NPPES with a practice address in Danville, California.

20 Healthcare Providers

How Danville compares with the U.S.

Danville has 46 clinicians in Internal Medicine per 100,000 residents, close to the U.S. rate of 44.

That is 20 active clinicians in Internal Medicine with a practice address in Danville, for a population of 43,401.

That is close to the California rate of 45.

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.

88% of clinicians in Internal Medicine in Danville listed in the CMS Medicare file (14 of 16) 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.

75% of clinicians in Internal Medicine in Danville listed in the CMS Medicare file (12 of 16) 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 Danville, CA

Source: CMS PECOS
PECOS Enrolled Specialists 19 In Danville, CA
Part B Lab & Imaging Eligible 19 Diagnostic Referrals
DME Ordering Eligible 19 Durable Medical Equipment
Home Health Agency Referrals 19 HHA Ordering Eligible
Showing 1โ€“20 of 20 providers
With recent CMS data first, then Aโ€“Z

Dr. Sonal Jain Advani , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
915 San Ramon Valley Blvd, Danville, CA 945264062
Phone: 9258753750
NPI Identifier 1861681447
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Dr. Chelsea Taber Bowman , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
915 San Ramon Valley Blvd, Suite 100, Danville, CA 94526
Phone: 9258753750
NPI Identifier 1033485958
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Dr. Christine M Chang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4165 Blackhawk Plaza Cir, #265, Danville, CA 945064904
Phone: 9256487140
NPI Identifier 1770696056
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Dr. Lee Brett Eisan , MD

Internal Medicine

Active NPI Status Telehealth Services Available
907 San Ramon Valley Blvd, Suite # 102, Danville, CA 94526
Phone: 9258377409
NPI Identifier 1871674333
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Dr. Margo Estrin , MD

Internal Medicine

Active NPI Status
901 San Ramon Valley Blvd, #232, Danville, CA 945264034
Phone: 9258376006
NPI Identifier 1891840096
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Dr. Amit Kumar Garg , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
105 Hickory Ct, Danville, CA 945064527
Phone: 8473476579
NPI Identifier 1508185851
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Dr. Denise Maria Hilliard , MD

Internal Medicine

Active NPI Status
907 San Ramon Valley Blvd, Suite 104, Danville, CA 945264036
Phone: 9258371044
NPI Identifier 1053375188
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Dr. Lisa A Hudson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
913 San Ramon Valley Blvd, Suite 186, Danville, CA 945264031
Phone: 9259842622
NPI Identifier 1760427702
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Dr. Jacqueline Ann Jayan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
915 San Ramon Valley Blvd, Danville, CA 945264062
Phone: 9258753750
NPI Identifier 1780001792
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Dr. Carol L Lamb , MD

Internal Medicine

Active NPI Status
4165 Blackhawk Plaza Cir, #265, Danville, CA 945064904
Phone: 9256487140
NPI Identifier 1689787962
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Dr. Neil R Okamura , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1320 El Capitan Dr Ste 310, Danville, CA 945266258
Phone: 9253806211
NPI Identifier 1437261781
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Dr. Priti Sanjay Parekh , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
319 Diablo Rd Ste 105, Danville, CA 945263428
Phone: 9253140260
NPI Identifier 1013069236
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Dr. Donald Samuel Parsons , MD

Internal Medicine

Active NPI Status
400 El Cerro Blvd, Ste 102, Danville, CA 945261731
Phone: 9258553780
NPI Identifier 1760447320
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Dr. Nimish G Patel , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
303 Pine Pl, Danville, CA 945064416
Phone: 6509354173
NPI Identifier 1184901001
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Dr. Mark S Reginato , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4165 Blackhawk Plaza Circle, Suite 100, Danville, CA 945062308
Phone: 9257367070
NPI Identifier 1194884502
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Dr. Clifford John Sewell , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
400 El Cerro Blvd Ste 102, Danville, CA 945261731
Phone: 9258553780
NPI Identifier 1851437123
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Dr. Steven How-Han Sheh , MD, MS

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
915 San Ramon Valley Blvd, Danville, CA 945264062
Phone: 9258753750
NPI Identifier 1437469129
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Dr. Priya Swamy , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
4165 Blackhawk Plaza Circle, Ste 265, Danville, CA 945064691
Phone: 9256487144
NPI Identifier 1134272255
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Dr. Pamela Wang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
901 San Ramon Valley Blvd, #130, Danville, CA 945264034
Phone: 9258206456
NPI Identifier 1033188602
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Philip Fischbacher

Internal Medicine

Active NPI Status
696 San Ramon Valley Blvd, #101, Danville, CA 945264022
Phone: 9258996044
NPI Identifier 1467802264
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Frequently Asked Questions about Internal Medicine in Danville

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 Danville

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