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Internal Medicine Providers in Tualatin, OR

Browse 44 Internal Medicine providers listed in NPPES with a practice address in Tualatin, Oregon.

44 Healthcare Providers

How Tualatin compares with the U.S.

Tualatin has 158 clinicians in Internal Medicine per 100,000 residents, 3.6 times the U.S. rate of 44.

That is 44 active clinicians in Internal Medicine with a practice address in Tualatin, for a population of 27,763.

The Oregon rate is 50 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.

100% of clinicians in Internal Medicine in Tualatin listed in the CMS Medicare file (31 of 31) accept Medicare assignment. That is similar to the Oregon share of 98%.

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.

29% of clinicians in Internal Medicine in Tualatin listed in the CMS Medicare file (9 of 31) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Oregon share of 33%.

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 Tualatin, OR

Source: CMS PECOS
PECOS Enrolled Specialists 37 In Tualatin, OR
Part B Lab & Imaging Eligible 40 Diagnostic Referrals
DME Ordering Eligible 40 Durable Medical Equipment
Home Health Agency Referrals 40 HHA Ordering Eligible
Showing 1โ€“20 of 44 providers
With recent CMS data first, then Aโ€“Z

Dr. Alicia Meridith Ahn , MD

Internal Medicine

Active NPI Status
19185 Sw 90th Ave, Tualatin, OR 970627558
Phone: 5038857300
NPI Identifier 1811109283
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Tin Zar Aung

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19185 Sw 90th Ave, Tualatin, OR 970627558
Phone: 5038132000
NPI Identifier 1194019190
View Full Profile

Dr. Sandra Jean Barton , MD

Internal Medicine

Active NPI Status
19185 Sw 90th Ave, Tualatin, OR 970627558
Phone: 5038855348
NPI Identifier 1881773893
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Dr. Sarra Borhanian , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
6464 Sw Borland Rd Ste C1, Tualatin, OR 970628856
Phone: 5036356256
NPI Identifier 1285096057
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Dr. Jaymee E Delaney , MD

Internal Medicine

Active NPI Status
19260 Sw 65th Ave, Ste 270, Tualatin, OR 970625701
Phone: 5033520770
NPI Identifier 1003864687
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Dr. Janel Carmela Desalvo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19300 Sw 65th Ave, Tualatin, OR 970627706
Phone: 5036921212
NPI Identifier 1770089468
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Dr. Jay Paul Douglass , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
6464 Sw Borland Rd Ste C1, Tualatin, OR 970628856
Phone: 5036356256
NPI Identifier 1477714491
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Dr. John Thomas Forsythe , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
19250 Sw 65th Ave, #110, Tualatin, OR 97062
Phone: 5036921205
NPI Identifier 1134188386
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Dr. Kathryn Renee Foutch , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19300 Sw 65th Ave, Tualatin, OR 970627706
Phone: 5036921212
NPI Identifier 1568826386
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Dr. Reynaldo Danilo Thiam Franco , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19300 Sw 65th Ave, Tualatin, OR 970627706
Phone: 5036921122
NPI Identifier 1134148927
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Dr. Jeffrey D Fullman , MD

Internal Medicine

Active NPI Status
19250 Sw 65th Ave, Ste 110, Tualatin, OR 970627452
Phone: 5036921205
NPI Identifier 1932178951
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Raelin Fullmer

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19300 Sw 65th Ave, Tualatin, OR 97062
Phone: 5034138407
NPI Identifier 1528487956
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Dr. Adam N Glaser , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
6485 Sw Borland Rd Ste B, Tualatin, OR 970629762
Phone: 5032728825
NPI Identifier 1346536299
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Dr. Gwen Johanna Grewe , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
19875 Sw 65th Ave, Tualatin, OR 970628353
Phone: 5036927785
NPI Identifier 1326014234
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Dr. Tana Marie Haynes , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
19260 Sw 65th Ave Ste 270, Suite B2, Tualatin, OR 970625705
Phone: 5036990764
NPI Identifier 1639160369
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Dr. Jan Hua , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
19875 Sw 65th Ave Ste 100, Tualatin, OR 970628353
Phone: 5036927785
NPI Identifier 1922635150
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Emoniel Isakharov

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
19875 Sw 65th Ave Ste 100, Tualatin, OR 970628353
Phone: 5036927785
NPI Identifier 1649777863
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Active NPI Status Accepts Medicare Assignment
19185 Sw 90th Ave, Tualatin, OR 970627558
Phone: 8008132000
NPI Identifier 1649380734
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Dr. Cara Jeanne Tsoi Lutze , MD

Internal Medicine

Active NPI Status
19250 Sw 65th Ave Ste 240, Tualatin, OR 970627745
Phone: 5038089213
NPI Identifier 1982920872
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Dr. Carmen Mccallum , MD

Internal Medicine

Active NPI Status
19355 Sw Mohave Ct, Tualatin, OR 970628631
Phone: 5037760809
NPI Identifier 1295810265
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Frequently Asked Questions about Internal Medicine in Tualatin

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 Oregon 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.