Independent US Healthcare Provider Directory & Public Medical Database Patient Guides
Medical Specialty Listing

Internal Medicine Providers in Napa, CA

Browse 61 Internal Medicine providers listed in NPPES with a practice address in Napa, California.

61 Healthcare Providers

How Napa compares with the U.S.

Napa has 78 clinicians in Internal Medicine per 100,000 residents, about 1.8 times the U.S. rate of 44.

That is 61 active clinicians in Internal Medicine with a practice address in Napa, for a population of 78,239.

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 Napa listed in the CMS Medicare file (25 of 26) accept Medicare assignment. That is similar to the California share of 96%.

Only 26 of 61 active clinicians in Internal Medicine in Napa 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.

35% of clinicians in Internal Medicine in Napa listed in the CMS Medicare file (9 of 26) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to 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 Napa, CA

Source: CMS PECOS
PECOS Enrolled Specialists 41 In Napa, CA
Part B Lab & Imaging Eligible 41 Diagnostic Referrals
DME Ordering Eligible 42 Durable Medical Equipment
Home Health Agency Referrals 41 HHA Ordering Eligible
Showing 1โ€“20 of 61 providers
With recent CMS data first, then Aโ€“Z

Dr. Abhijit A Adhye , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1100 Trancas St Ste 211, Napa, CA 945582909
Phone: 7076374108
NPI Identifier 1992763205
View Full Profile

Dr. Ali Akhavan , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2100 Napa Vallejo Hwy, Napa, CA 945586293
Phone: 7072535000
NPI Identifier 1013943174
View Full Profile

Dr. Daniel Eddins Andrews , MD

Internal Medicine

Active NPI Status
1131 Trancas St, Napa, CA 945582907
Phone: 7072577752
NPI Identifier 1659394427
View Full Profile

Dr. Grace Zapata Ang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2100 Napa Vallejo Hwy., Napa, CA 945586293
Phone: 7072535000
NPI Identifier 1902990245
View Full Profile

Dr. Manuel A. Ballesca , MD

Internal Medicine

Active NPI Status
3285 Claremont Way, Napa, CA 945583313
Phone: 7072582500
NPI Identifier 1639257538
View Full Profile

Dr. Herbert Charles Bazron , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1100 Trancas St Ste 201, Napa, CA 945582904
Phone: 7077034863
NPI Identifier 1609803048
View Full Profile

Dr. Marshall Cooperson , DO

Internal Medicine

Active NPI Status
3010 Beard Rd, Napa, CA 945583442
Phone: 7072571550
NPI Identifier 1194743195
View Full Profile

Dr. Diana Sue Devera , DO

Internal Medicine

Active NPI Status
3443 Villa Ln Ste 10, Napa, CA 945586417
Phone: 7072511867
NPI Identifier 1629399563
View Full Profile

Dr. Michael Joseph Harrington , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3443 Villa Ln Ste 9, Napa, CA 945586417
Phone: 7072538901
NPI Identifier 1124186945
View Full Profile

Dr. Beth Ann Hartung , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1141 Pear Tree Ln, Napa, CA 94558
Phone: 7072541774
NPI Identifier 1275501488
View Full Profile

Dr. Mary Rose Veloro Huber , MD

Internal Medicine

Active NPI Status
935 Trancas St, Suite 1c, Napa, CA 945582932
Phone: 7072524872
NPI Identifier 1891928560
View Full Profile

Dr. David M Jue , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3010 Beard Rd, Napa, CA 945583442
Phone: 7072571550
NPI Identifier 1467470468
View Full Profile

Dr. Rony Youshia Kako , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3010 Beard Rd, Napa, CA 945583442
Phone: 7072571550
NPI Identifier 1699709881
View Full Profile

Dr. Jahed Kamal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2100 Napa Vallejo Hwy., Napa, CA 945586293
Phone: 7072535000
NPI Identifier 1326241415
View Full Profile

Dr. Paul M Laband , MD

Internal Medicine

Active NPI Status
3443 Villa Ln Ste 10, Napa, CA 945586417
Phone: 7072511867
NPI Identifier 1427029040
View Full Profile

Dr. Eric Lee , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1000 Trancas St, Napa, CA 945582906
Phone: 7072524411
NPI Identifier 1821520032
View Full Profile

Dr. Monica G. Mckeever , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2100 Napa Vallejo Hwy, Napa, CA 945586293
Phone: 7072535000
NPI Identifier 1538135298
View Full Profile

Dr. Jaskaran Singh Momi , MD

Internal Medicine

Active NPI Status
2100 Napa Vallejo Hwy., Napa, CA 945586293
Phone: 7072535000
NPI Identifier 1114974862
View Full Profile

Dr. Roxana Mundy , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3285 Claremont Way, Napa, CA 945583313
Phone: 7072582500
NPI Identifier 1487732210
View Full Profile

Dr. Heather M. Paciotti , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3285 Claremont Way, Napa, CA 945583313
Phone: 7072582500
NPI Identifier 1992883730
View Full Profile

Frequently Asked Questions about Internal Medicine in Napa

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.