NPPES file of Aug 9, 2026

Heather Amanda Oldham, PA-C

Physician Assistant · Portland, OR

Heather Amanda Oldham, PA-C is a physician assistant with a practice address in Portland, Oregon, and NPI 1811380009, issued on Mar 11, 2015. Check the license (Oregon PA195831, as entered in NPPES) with the Oregon board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811380009
Name
Heather Amanda Oldham
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
PA195831 OR
52338 CA
PA60995977 WA
Self-reported in NPPES; status is on the state search
Practice location
1035 NW Northrup St, Portland, OR 97209
Phone
(971) 303-3770
Enumerated
Mar 11, 2015
Record last updated
Jan 27, 2026
Medicare enrollment
Enrolled (PECOS I20191211002243); accepts Medicare assignment
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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Verify Heather Amanda Oldham 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 PA195831
    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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85% fewer Medicare Part D claims than the average physician assistant in 2024

124 Medicare Part D claims for 78 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Heather Oldham124
  2. Specialty average830

Most prescribed

  1. Prednisone11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestClackamas, OR

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

Heather Amanda Oldham among 2,094 physician assistant records in Oregon

Heather Amanda Oldham, PA-C is one of 2,094 physician assistant records with a practice address in Oregon. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 44% of them.

  • NPI issued2015 · 44% of these records are older, 52% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2019 · median 2017 among the 1,552 with a school on file
  • Record last updated2026 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Physician Assistant providers in Oregon

There are 2,094 physician assistant records in Oregon.

The 8 physician assistant records with the nearest ZIP codes

  1. Pat Buckley, ND, PA-CPortland, OR 972091043229248
  2. Ryan Cordell, PAPortland, OR 972091104334176
  3. Geneva Eagon, PAPortland, OR 972091114533072
  4. David Gahtan, P.A.Portland, OR 972091215903059
  5. Karyn Guido, PA-CPortland, OR 972091730466178
  6. Barbara Martin, PAPortland, OR 972091003864166
  7. Meghan MolitorPortland, OR 972091699369553
  8. Chelsi Rayford, PA-CPortland, OR 972091972019149

Common questions

What is Heather Amanda Oldham, PA-C's NPI number?

Heather Amanda Oldham, PA-C's National Provider Identifier (NPI) is 1811380009, issued on Mar 11, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Heather Amanda Oldham, PA-C located?

The NPPES record lists a practice address at 1035 NW Northrup St, Portland, OR, 97209. Phone: (971) 303-3770. Providers update this record themselves, so call before visiting.

How can I verify Heather Amanda Oldham, PA-C's license?

NPPES lists Oregon license number PA195831, as entered by the provider. Search the Oregon board that licenses this profession; the NPPES record confirms identity only.

How much does Heather Amanda Oldham, PA-C prescribe under Medicare Part D?

In 2024, Heather Amanda Oldham, PA-C had 124 Medicare Part D claims for 78 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions 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. 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.