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Internal Medicine Providers in Portland, OR

Browse 890 Internal Medicine providers listed in NPPES with a practice address in Portland, Oregon.

890 Healthcare Providers

How Portland compares with the U.S.

Portland has 139 clinicians in Internal Medicine per 100,000 residents, 3.1 times the U.S. rate of 44.

That is 890 active clinicians in Internal Medicine with a practice address in Portland, for a population of 641,165.

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.

98% of clinicians in Internal Medicine in Portland listed in the CMS Medicare file (489 of 499) 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.

37% of clinicians in Internal Medicine in Portland listed in the CMS Medicare file (186 of 499) 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 Portland, OR

Source: CMS PECOS
PECOS Enrolled Specialists 669 In Portland, OR
Part B Lab & Imaging Eligible 683 Diagnostic Referrals
DME Ordering Eligible 713 Durable Medical Equipment
Home Health Agency Referrals 683 HHA Ordering Eligible
Showing 1โ€“20 of 890 providers
With recent CMS data first, then Aโ€“Z

Rand Abedalweli

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034948211
NPI Identifier 1265019996
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Dr. Rebecca Abney , DO

Internal Medicine

Active NPI Status
2800 N Vancouver Ave, Suite 230, Portland, OR 972271630
Phone: 5034134340
NPI Identifier 1881984748
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Dr. Allison Lynn Abraham , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1200 Nw 23rd Ave, Portland, OR 972102906
Phone: 5034138407
NPI Identifier 1831488444
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Dr. Mahnaz Ahmad , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1321 Ne 99th Ave, Ste 200, Portland, OR 972209436
Phone: 5032154250
NPI Identifier 1124046727
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Dr. Merrill Marshall Ahrens , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
19500 Se Stark St, Portland, OR 972335757
Phone: 5036693900
NPI Identifier 1194839225
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Dr. Angela Ethridge Alday , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd # Bte119, Portland, OR 972393011
Phone: 5034941164
NPI Identifier 1861636003
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Dr. John Alferes , MD

Internal Medicine

Active NPI Status
3550 N Interstate Ave, Portland, OR 972271196
Phone: 5032859321
NPI Identifier 1679680805
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Dr. Duna Alkhalaileh , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393098
Phone: 5034948211
NPI Identifier 1366071458
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Dr. Elizabeth Shaw Allen , MD

Internal Medicine

Active NPI Status
3710 Sw Us Veterans Hospital Rd, Portland Va Medical Center, P3-Med, Portland, OR 972071034
Phone: 5032208262
NPI Identifier 1871507491
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Dr. Alexis Marie Amatisto , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9205 Sw Barnes Rd, Portland, OR 972256603
NPI Identifier 1386263580
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Dr. Amy Catherine Anderton , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2801 N Gantenbein Ave, Portland, OR 97227
Phone: 5034138407
NPI Identifier 1568802361
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Dr. Lee Michael Anthony , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9205 Sw Barnes Rd Mt-2800, Portland, OR 972256603
Phone: 5032162621
NPI Identifier 1336551555
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Dr. Sara Hays Archer , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
3181 Sw Sam Jackson Park Rd # L475, Portland, OR 972393011
Phone: 5034946551
NPI Identifier 1598279564
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Dr. Oliver Loriega Arquero , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
4805 Ne Glisan St Ste Bg05, Portland, OR 97213
Phone: 5032152392
NPI Identifier 1962713776
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Dr. Cibi Arumugam , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2801 N Gantenbein Ave, Portland, OR 972271623
Phone: 5034138407
NPI Identifier 1376822742
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Dr. Shikha Arun , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
5330 Ne Glisan St, Suite 100, Portland, OR 972133069
Phone: 5032159700
NPI Identifier 1306881834
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Dr. Kathrine Elaine Avison , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
5050 Ne Hoyt, Suite 469, Portland, OR 972132984
Phone: 5032317747
NPI Identifier 1124126636
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Dr. Afaf Sharen Azar , MD

Internal Medicine

Active NPI Status
3181 Sw Sam Jackson Park Rd # L475, Portland, OR 972393011
Phone: 5034946551
NPI Identifier 1174883565
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Dr. Leesa M Azar , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
9450 Sw Barnes Rd Ste 100, Portland, OR 972256642
Phone: 5032929560
NPI Identifier 1629012315
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Michele Lynn Babaie

Internal Medicine

Active NPI Status
714 Ne Alberta St, Portland, OR 972113960
Phone: 5032874932
NPI Identifier 1497737662
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Frequently Asked Questions about Internal Medicine in Portland

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.