NPPES file of Aug 9, 2026

Dolores Anne Leon, M.D.

Anesthesiology Physician · Portland, OR

Dolores Anne Leon, M.D. is an anesthesiology physician with a practice address in Portland, Oregon, and NPI 1235486572, issued on Aug 6, 2012. Check the license (Oregon 10371, as entered in NPPES) on the Oregon Medical Board; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1235486572
Name
Dolores Anne Leon
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
10371 OR
Self-reported in NPPES; status is on the state search
Practice location
2221 S.W. First Avenue, Portland, OR 97201
Phone
(503) 222-2729
Enumerated
Aug 6, 2012
Record last updated
Aug 6, 2012 (not updated in 14 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Dolores Anne Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license 10371
    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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Dolores Anne Leon among 969 anesthesiology physician records in Oregon

Dolores Anne Leon, M.D. 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 not. Its NPI, issued in 2012, is newer than 70% of them.

  • NPI issued2012 · 70% of these records are older, 27% newer
  • In a Medicare fileNo · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 65% of these records are
  • Record last updated2012 · 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. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Dean Laochamroonvorapongse, M.D.Portland, OR 972011659539096
  2. Peter Schulman, MDPortland, OR 972011285688176
  3. Brent Andersen, MDPortland, OR 972051013981216
  4. Ying-Hao Au, DOPortland, OR 972051225002439
  5. Neil Jeffery Axel, MDPortland, OR 972051194799304
  6. Elizabeth Billerbeck, MDPortland, OR 972051538133749
  7. Thomas Box, MDPortland, OR 972051861466088
  8. Nathan Carden, DOPortland, OR 972051558340794

Common questions

What is Dolores Anne Leon, M.D.'s NPI number?

Dolores Anne Leon, M.D.'s National Provider Identifier (NPI) is 1235486572, issued on Aug 6, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Dolores Anne Leon, M.D. located?

The NPPES record lists a practice address at 2221 S.W. First Avenue, Portland, OR, 97201. Phone: (503) 222-2729. Providers update this record themselves, so call before visiting.

How can I verify Dolores Anne Leon, M.D.'s license?

NPPES lists Oregon license number 10371, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.