John Philip Hammerstad, MD
Neurology Physician · Portland, OR
John Philip Hammerstad, MD is a neurology physician with a practice address in Portland, Oregon, and NPI 1174692446, issued on Nov 8, 2006. Check the license (Oregon MD08310, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Philip Hammerstad
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- MD08310 OR
Self-reported in NPPES; status is on the state search - Practice location
- 3181 SW Sam Jackson Park RD, Portland, OR 97239
- Phone
- (503) 494-7772
- Enumerated
- Nov 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 087510 OR
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 287 in Oregon → Look up another NPI →
Also registered at 3181 SW Sam Jackson Park RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Philip Hammerstad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD08310Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
John Philip Hammerstad among 287 neurology physician records in Oregon
John Philip Hammerstad, MD is one of 287 neurology physician records with a practice address in Oregon. 73% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2007 · 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 2084N0400X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Oregon
There are 287 neurology physician records in Oregon.
All 287 in Oregon → Every provider in Portland → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Jacqueline Bernard, M.D.Portland, OR 972391710924709
- Eilis Boudreau, MDPortland, OR 972391093737629
- Nizar Chahin, M.D.Portland, OR 972391225015761
- Edward Cupler, MDPortland, OR 972391225043722
- Deniz Erten-Lyons, MDPortland, OR 972391770598286
- Daniel Gibbs, MD, PHDPortland, OR 972391720080427
- Amie Hiller, M.D.Portland, OR 972391649205600
- Helmi Lutsep, MDPortland, OR 972391164437661
Common questions
What is John Philip Hammerstad, MD's NPI number?
John Philip Hammerstad, MD's National Provider Identifier (NPI) is 1174692446, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Philip Hammerstad, MD located?
The NPPES record lists a practice address at 3181 SW Sam Jackson Park RD, Portland, OR, 97239. Phone: (503) 494-7772. Providers update this record themselves, so call before visiting.
How can I verify John Philip Hammerstad, MD's license?
NPPES lists Oregon license number MD08310, 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 John Philip Hammerstad, MD'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.