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Internal Medicine Providers in Ventura, CA

Browse 68 Internal Medicine providers listed in NPPES with a practice address in Ventura, California.

68 Healthcare Providers

How Ventura compares with the U.S.

Ventura has 62 clinicians in Internal Medicine per 100,000 residents, about 1.4 times the U.S. rate of 44.

That is 68 active clinicians in Internal Medicine with a practice address in Ventura, for a population of 109,857.

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.

93% of clinicians in Internal Medicine in Ventura listed in the CMS Medicare file (37 of 40) 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.

35% of clinicians in Internal Medicine in Ventura listed in the CMS Medicare file (14 of 40) 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 Ventura, CA

Source: CMS PECOS
PECOS Enrolled Specialists 53 In Ventura, CA
Part B Lab & Imaging Eligible 56 Diagnostic Referrals
DME Ordering Eligible 56 Durable Medical Equipment
Home Health Agency Referrals 56 HHA Ordering Eligible
Showing 1โ€“20 of 68 providers
With recent CMS data first, then Aโ€“Z

Dr. Jessica Marie Adkins , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8056525652
NPI Identifier 1194968362
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Dr. Joel Adam Alpern , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
168 N Brent St, Suite 404, Ventura, CA 930032817
Phone: 8056416525
NPI Identifier 1942411657
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Dr. Steven Allen Barr , MD

Internal Medicine

Active NPI Status
120 N Ashwood Ave, Ventura, CA 930031810
Phone: 8056585800
NPI Identifier 1972666980
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Dr. Andrew S Binder , MD

Internal Medicine

Active NPI Status Telehealth Services Available
3200 Telegraph Rd, Ventura, CA 930033232
Phone: 8056769100
NPI Identifier 1649367426
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Dr. Ian Patrick Cahatol , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8056525672
NPI Identifier 1750876579
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Dr. Deborah Carlson , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8056525011
NPI Identifier 1942231121
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Dr. Wikrom Chaiwatcharayut , MD

Internal Medicine

Active NPI Status
200 S Wells Rd, Ventura, CA 930041377
Phone: 8056476322
NPI Identifier 1306259809
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Dr. Hana Fortney Chakalian , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8059485672
NPI Identifier 1962145631
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Dr. Michele Bernadette Cunneen , MD

Internal Medicine

Active NPI Status
3442 Loma Vista Rd, Suite C, Ventura, CA 930033081
Phone: 8056428107
NPI Identifier 1619986882
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Dr. John R Dexter , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2705 Loma Vista Rd Ste 205, Ventura, CA 930031582
Phone: 8055853086
NPI Identifier 1710034970
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Dr. Sosi Dzhugarian , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8059485672
NPI Identifier 1124762265
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Dr. Michael Eden , DO

Internal Medicine

Active NPI Status
147 N Brent St, Ventura, CA 930032809
Phone: 8056525011
NPI Identifier 1568812642
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Dr. Ali Esmaili , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
147 N Brent St, Ventura, CA 930032809
Phone: 8056525652
NPI Identifier 1033390562
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Dr. Amanda Frugoli , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
147 N Brent St, Ventura, CA 930032809
Phone: 8056525652
NPI Identifier 1972918217
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Dr. Doina Galiatzatos , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
888 S Hill Rd, Ventura, CA 930038400
Phone: 8054776000
NPI Identifier 1548206089
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Dr. Chetan Gondha , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
168 N. Brent Street, Suite 404, Ventura, CA 93003
Phone: 8056416525
NPI Identifier 1992715155
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Dr. Scott Goodfriend , MD

Internal Medicine

Active NPI Status
888 S Hill Rd, Ventura, CA 930038400
Phone: 8054776464
NPI Identifier 1982636965
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Dr. Thatcher Thi Huynh , DO

Internal Medicine

Active NPI Status
147 N Brent St, Ventura, CA 930032809
Phone: 8059485672
NPI Identifier 1730743022
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Dr. Jeanette Ilarde , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
6633 Telephone Rd Ste 212, Ventura, CA 930035569
Phone: 8056449121
NPI Identifier 1548344641
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Dr. Arthur M Inoshita , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3003 Loma Vista Rd, Ste B, Ventura, CA 930032940
Phone: 8056521520
NPI Identifier 1932105277
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Frequently Asked Questions about Internal Medicine in Ventura

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.