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Anesthesiology Specialists in Portland, OR

Browse 578 Anesthesiology providers listed in NPPES with a practice address in Portland, Oregon.

578 Healthcare Providers

How Portland compares with the U.S.

Portland has 90 clinicians in Anesthesiology per 100,000 residents, 5.0 times the U.S. rate of 18.

That is 578 active clinicians in Anesthesiology with a practice address in Portland, for a population of 641,165.

The Oregon rate is 23 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.

97% of clinicians in Anesthesiology in Portland listed in the CMS Medicare file (375 of 386) 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.

1% of clinicians in Anesthesiology in Portland listed in the CMS Medicare file (3 of 386) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is similar to the Oregon share of 1%.

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).

Anesthesiology Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Anesthesiology practitioners in Portland, OR

Source: CMS PECOS
PECOS Enrolled Specialists 413 In Portland, OR
Part B Lab & Imaging Eligible 412 Diagnostic Referrals
DME Ordering Eligible 434 Durable Medical Equipment
Home Health Agency Referrals 412 HHA Ordering Eligible
Showing 1โ€“20 of 578 providers
With recent CMS data first, then Aโ€“Z

Thomas Abbatiello

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St Ste 700, Portland, OR 972053523
Phone: 5032999906
NPI Identifier 1053848150
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Dr. Eric Abhold , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St Ste 700, Portland, OR 972053523
Phone: 5032999906
NPI Identifier 1770963381
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Dr. Mark Christopher Adams , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1700044484
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Dr. Kareem Aggour , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St Ste 700, Portland, OR 972053523
Phone: 5032999906
NPI Identifier 1417223835
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Dr. George Agyekum , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034181389
NPI Identifier 1790149334
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Dr. Evan Hunter Alldredge , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St Ste 700, Portland, OR 972053523
Phone: 5032999906
NPI Identifier 1194276931
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Dr. Nicholas An , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd # 2, Portland, OR 972393098
Phone: 5034947641
NPI Identifier 1306228853
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Dr. Brent D. Andersen , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1013981216
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Dr. Jacob Anderson , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034948211
NPI Identifier 1639533557
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Dr. Ryan Berger Anderson , MD, PhD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034949000
NPI Identifier 1922272376
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Dr. Shea Landon Anderson , MD

Anesthesiology

Active NPI Status
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1902073604
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Dr. Methapan Arunakul , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1578756789
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Dr. Anunai Raj Asthana , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1871785014
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Dr. Carrie Leigh Hamby Atcheson , MD, MPH

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1134359151
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Dr. Dina Attia , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034947641
NPI Identifier 1801355763
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Dr. Ying-Hao Au , DO

Anesthesiology

Active NPI Status
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1225002439
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Dr. Neil Jeffery Axel , MD

Anesthesiology

Active NPI Status
707 Sw Washington St, Suite 700, Portland, OR 972053536
Phone: 5032999906
NPI Identifier 1194799304
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Dr. Michael Shawn Axley , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
707 Sw Washington St Ste 700, Portland, OR 972053523
Phone: 5032999906
NPI Identifier 1588823710
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Dr. Michael Aziz , MD

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Uhs-2, Portland, OR 972393011
Phone: 5034944910
NPI Identifier 1841227584
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Dianne Bach

Anesthesiology

Active NPI Status Accepts Medicare Assignment
3181 Sw Sam Jackson Park Rd, Portland, OR 972393011
Phone: 5034947641
NPI Identifier 1083069629
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Frequently Asked Questions about Anesthesiology in Portland

How do I check a Anesthesiology 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.