NPPES file of Aug 9, 2026

Aaron Halfpenny, DO

Anatomic Pathology & Clinical Pathology Physician · Portland, OR

Aaron Halfpenny, DO is an anatomic pathology & clinical pathology physician with a practice address in Portland, Oregon, and NPI 1629368816, issued on Apr 9, 2011. Check the license (Oregon DO176400, 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
1629368816
Name
Aaron Halfpenny
Credential
DO
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
DO176400 OR
Self-reported in NPPES; status is on the state search
Practice location
3181 SW Sam Jackson Park RD # L-471, Portland, OR 97239
Phone
(503) 494-6776
Enumerated
Apr 9, 2011
Record last updated
May 10, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190827001204); 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 Aaron Halfpenny in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license DO176400
    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

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The MIPS final score for 2023 (Medicare payment program): 97.8 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score81.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Bills Medicare through one group practice

  1. Kaiser Foundation Health Plan OF The NorthwestPortland, OR

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

Aaron Halfpenny among 195 anatomic pathology & clinical pathology physician records in Oregon

Aaron Halfpenny, DO is one of 195 anatomic pathology & clinical pathology physician records with a practice address in Oregon. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 74% of them.

  • NPI issued2011 · 74% of these records are older, 24% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2011 · median 2006 among the 102 with a school on file
  • Record last updated2019 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Oregon

There are 195 anatomic pathology & clinical pathology physician records in Oregon.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Rita Braziel, MDPortland, OR 972391265447759
  2. Patricia Fenderson, M.D.Portland, OR 972391093712424
  3. Ken Gatter, MDPortland, OR 972391649286246
  4. Eric Goranson, M.D.Portland, OR 972391477754760
  5. Maylee Hsu, MDPortland, OR 972391467588111
  6. James Maclowry, MDPortland, OR 972391740295245
  7. Rosemary Makar, MBBCHPortland, OR 972391164518981
  8. Craig Midgen, M.D.Portland, OR 972391235350653

Common questions

What is Aaron Halfpenny, DO's NPI number?

Aaron Halfpenny, DO's National Provider Identifier (NPI) is 1629368816, issued on Apr 9, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Halfpenny, DO located?

The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD # L-471, Portland, OR, 97239. Phone: (503) 494-6776. Providers update this record themselves, so call before visiting.

How can I verify Aaron Halfpenny, DO's license?

NPPES lists Oregon license number DO176400, 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 Aaron Halfpenny, DO's MIPS final score?

The 2023 MIPS final score is 97.8 of 100. 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.