NPPES file of Aug 9, 2026

Dean S. Walker, MD

Anesthesiology Physician · Portland, OR

Dean S. Walker, MD is an anesthesiology physician with a practice address in Portland, Oregon, and NPI 1780693226, issued on Aug 5, 2006. Check the license (Oregon MD19800, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1780693226
Name
Dean S. Walker
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
MD19800 OR
Self-reported in NPPES; status is on the state search
Practice location
707 SW Washington St, Portland, OR 97205
Phone
(503) 299-9906
Enumerated
Aug 5, 2006
Record last updated
Oct 19, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(503) 225-9002
Medicaid IDs
MD0469R AK
XPY203956 CA
4156803 00 MD
805336500 ID
Medicare enrollment
Enrolled (PECOS I20191122002679); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 1991
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 707 SW Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Matthew Abrahams, M.D.Anesthesiology Physician1467667428
  2. Mark Adams, M.D.Anesthesiology Physician1700044484
  3. Brent Andersen, MDAnesthesiology Physician1013981216
  4. Shea Anderson, MDAnesthesiology Physician1902073604
  5. Methapan Arunakul, MDAnesthesiology Physician1578756789
  6. Anunai Asthana, M.D.Anesthesiology Physician1871785014

Verify Dean S. Walker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD19800
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 88.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score84.6
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Anesthesia And Analgesia Medical Group IncSanta Rosa, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dean S. Walker among 969 anesthesiology physician records in Oregon

Dean S. Walker, MD is one of 969 anesthesiology physician records with a practice address in Oregon. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 52% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated1991 · median 2009 among the 627 with a school on file
  • Record last updated2018 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

578 anesthesiology physician records list a practice address in Portland

They are 578 of the 42,088 NPPES records with a practice address in Portland, and 969 anesthesiology physician records in Oregon.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Brent Andersen, MDPortland, OR 972051013981216
  2. Ying-Hao Au, DOPortland, OR 972051225002439
  3. Neil Jeffery Axel, MDPortland, OR 972051194799304
  4. Michael Berry, MDPortland, OR 972051578537577
  5. Elizabeth Billerbeck, MDPortland, OR 972051538133749
  6. Bruce Bolton, MDPortland, OR 972051053385260
  7. Thomas Box, MDPortland, OR 972051861466088
  8. Matthew Buckon, MDPortland, OR 972051013981232

Common questions

What is Dean S. Walker, MD's NPI number?

Dean S. Walker, MD's National Provider Identifier (NPI) is 1780693226, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Dean S. Walker, MD located?

The NPPES record lists a practice address at 707 SW Washington St, Portland, OR, 97205. Phone: (503) 299-9906. Providers update this record themselves, so call before visiting.

How can I verify Dean S. Walker, MD's license?

NPPES lists Oregon license number MD19800, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Dean S. Walker, MD's MIPS final score?

The 2023 MIPS final score is 88.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.