NPPES file of Aug 9, 2026

Brian Greenspan, RN

Adult Health Nurse Practitioner · Portland, OR

Brian Greenspan, RN is an adult health nurse practitioner with a practice address in Portland, Oregon, and NPI 1639022452, issued on Feb 19, 2026. Check the license (Oregon 10048681, as entered in NPPES) with the Oregon board that licenses this profession; 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
1639022452
Name
Brian Greenspan
Credential
RN
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
10048681 OR
Self-reported in NPPES; status is on the state search
Practice location
3218 SE Salmon St Apt A, Portland, OR 97214
Phone
(415) 378-5610
Enumerated
Feb 19, 2026
Record last updated
Feb 19, 2026
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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8 nearest adult health nurse practitioner records → All 308 in Oregon → Look up another NPI →

Verify Brian Greenspan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oregon board licenses this profession
    Search for license 10048681    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
Find the Oregon license search

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Brian Greenspan among 308 adult health nurse practitioner records in Oregon

Brian Greenspan, RN is one of 308 adult health nurse practitioner records with a practice address in Oregon. 49% 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 2026, is newer than over 99% of them.

  • NPI issued2026 · over 99% of these records are older, 0% newer
  • In a Medicare fileNo · 49% of these records are
  • In the CMS Doctors and Clinicians fileNo · 34% of these records are
  • Record last updated2026 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in Oregon

There are 308 adult health nurse practitioner records in Oregon. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 308 in Oregon → Every provider in Portland → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Sara BensonPortland, OR 972131982257390
  2. Sarah Bereznai, NPPortland, OR 972131679086938
  3. Nancy Binder, A,N.P.Portland, OR 972131679718498
  4. Susan Cato, ANPPortland, OR 972151316929870
  5. Rayoung Chung, ANPPortland, OR 972131588002976
  6. Mary Crabtree, DNSC., ANP, PROFESSOPortland, OR 972151366497281
  7. Sandra Dancer, ANP - CPortland, OR 972131942241716
  8. Michael Dupre, ANPPortland, OR 972131154403491

Common questions

What is Brian Greenspan, RN's NPI number?

Brian Greenspan, RN's National Provider Identifier (NPI) is 1639022452, issued on Feb 19, 2026. An NPI identifies a provider in billing; it is not a license.

Where is Brian Greenspan, RN located?

The NPPES record lists a practice address at 3218 SE Salmon St Apt A, Portland, OR, 97214. Phone: (415) 378-5610. Providers update this record themselves, so call before visiting.

How can I verify Brian Greenspan, RN's license?

NPPES lists Oregon license number 10048681, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.