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Internal Medicine Providers in Petaluma, CA

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

24 Healthcare Providers

How Petaluma compares with the U.S.

Petaluma has 41 clinicians in Internal Medicine per 100,000 residents, close to the U.S. rate of 44.

That is 24 active clinicians in Internal Medicine with a practice address in Petaluma, for a population of 59,247.

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.

82% of clinicians in Internal Medicine in Petaluma listed in the CMS Medicare file (9 of 11) accept Medicare assignment. That is lower than the California share of 96%.

Only 11 of 24 active clinicians in Internal Medicine in Petaluma appear in the CMS Medicare file, so this share describes that smaller group.

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.

45% of clinicians in Internal Medicine in Petaluma listed in the CMS Medicare file (5 of 11) 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 Petaluma, CA

Source: CMS PECOS
PECOS Enrolled Specialists 16 In Petaluma, CA
Part B Lab & Imaging Eligible 16 Diagnostic Referrals
DME Ordering Eligible 16 Durable Medical Equipment
Home Health Agency Referrals 16 HHA Ordering Eligible
Showing 1โ€“20 of 24 providers
With recent CMS data first, then Aโ€“Z

Dr. Padma Shivani Aluru , MD

Internal Medicine

Active NPI Status
400 N Mcdowell Blvd, Petaluma, CA 949542369
Phone: 7077781111
NPI Identifier 1992325526
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Dr. Saw Wynn Aye , MD

Internal Medicine

Active NPI Status Telehealth Services Available
104 Lynch Creek Way, Ste 10, Petaluma, CA 949542355
Phone: 7077829123
NPI Identifier 1972751915
View Full Profile

Dr. Sharina S. Belani , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1700958550
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Dr. Karen B. Bloom , MD

Internal Medicine

Active NPI Status
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1932283009
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Dr. Philippe Edouard , MD

Internal Medicine

Active NPI Status
1179 N Mcdowell Blvd, Petaluma, CA 949546559
Phone: 7075597500
NPI Identifier 1124029491
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Dr. Roberto Z. Gonzalez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1801970892
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Dr. Roberto Gonzalez Huerta , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1383 N Mcdowell Blvd Ste 150, Petaluma, CA 949547118
Phone: 7073082840
NPI Identifier 1104455526
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Dr. Susan H. Gross , MD

Internal Medicine

Active NPI Status
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1588714380
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Dr. Charles E. Metzger , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1881778959
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Dr. Nina Rachel Molin , MD

Internal Medicine

Active NPI Status
1179 N Mcdowell Blvd, Petaluma, CA 949546559
Phone: 7075597500
NPI Identifier 1114059979
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Dr. Rajesh K Ranadive , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
141 Lynch Creek Way Ste C, Petaluma, CA 949542390
Phone: 7077630802
NPI Identifier 1497704522
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Dr. Rajina R Ranadive , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
905 E Washington St, Petaluma, CA 949523389
Phone: 7077639891
NPI Identifier 1447200480
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Dr. Kokeb Teshome , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
400 N Mcdowell Blvd, Petaluma, CA 949542339
Phone: 7077781111
NPI Identifier 1316139066
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Dr. Lisa M. Velasquez , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1396895199
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Dr. Stephen A. Weiss , MD

Internal Medicine

Active NPI Status
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1265516330
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Dr. Rukiye Yoltar , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3900 Lakeville Hwy, Petaluma, CA 949545698
Phone: 7077653900
NPI Identifier 1952485922
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Dr. Gerald S. Besses , MD

Internal Medicine

Active NPI Status
124 Sunny Hill Dr, Petaluma, CA 949524749
Phone: 7076582799
NPI Identifier 1124047311
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Dr. Aranzazu Briseno Rodriguez , MD

Internal Medicine

Active NPI Status
1179 N Mcdowell Blvd, Petaluma, CA 949546559
Phone: 7075597500
NPI Identifier 1942149331
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Dr. Amy C. Kaelin , MD

Internal Medicine

Active NPI Status
205 Stowring Rd, Petaluma, CA 949521056
Phone: 7077926743
NPI Identifier 1336223320
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Dr. Michael B. Lennon , MD

Internal Medicine

Active NPI Status
412 Oak St, Petaluma, CA 949522709
Phone: 7079536587
NPI Identifier 1093893596
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Frequently Asked Questions about Internal Medicine in Petaluma

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.