Alvin K. Nakamura, M.D.
Obstetrics & Gynecology Physician · Portland, OR
Alvin K. Nakamura, M.D. is an obstetrics & gynecology physician with a practice address in Portland, Oregon, and NPI 1528029345, issued on Mar 31, 2006. Check the license (Oregon MD17656, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alvin K. Nakamura
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD17656 OR
Self-reported in NPPES; status is on the state search - Practice location
- 10000 SE Main St, Portland, OR 97216
- Phone
- (503) 257-7757
- Enumerated
- Mar 31, 2006
- Record last updated
- May 9, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (503) 257-6703
- Medicaid ID
- 044995 OR
- Medicare enrollment
- Enrolled (PECOS I20100923001426); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 654 in Oregon → Look up another NPI →
Also registered at 10000 SE Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benjamin Balme, MDOrthopaedic Surgery Physician1013903905
- Jon Benson, PSY DPsychologist1952477424
- Alexis Bonfiglio, PA-CPhysician Assistant1912303504
- Peter Carty, MDInternal Medicine Physician1326004250
- Aaron Case, MDEmergency Medicine Physician1134495567
- Leon Colburn, PAPhysician Assistant1578565339
Verify Alvin K. Nakamura in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD17656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
185 Medicare Part D claims for 51 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol86 claims
- Estradiol-Norethindrone Acetat15 claims
- Dotti11 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.
Alvin K. Nakamura among 654 obstetrics & gynecology physician records in Oregon
Alvin K. Nakamura, M.D. is one of 654 obstetrics & gynecology 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 11% of them.
- NPI issued2006 · 11% of these records are older, 48% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1988 · median 2007 among the 413 with a school on file
- Record last updated2016 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Oregon
There are 654 obstetrics & gynecology physician records in Oregon.
All 654 in Oregon → Every provider in Portland → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Asma Ahmad, MDPortland, OR 972161366466500
- Irena Cabrera, MDPortland, OR 972161184916959
- Gregory Eilers, MDPortland, OR 972161134323843
- Alan Fisher, M.D.Portland, OR 972161114988128
- Maryanne Garvie-Loveland, MDPortland, OR 972161326004086
- Margaret Gorman, M.D.Portland, OR 972161215348875
- Bojan Malmin, MDPortland, OR 972161497982722
- Arnold Petersen, MDPortland, OR 972161154409316
Common questions
What is Alvin K. Nakamura, M.D.'s NPI number?
Alvin K. Nakamura, M.D.'s National Provider Identifier (NPI) is 1528029345, issued on Mar 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alvin K. Nakamura, M.D. located?
The NPPES record lists a practice address at 10000 SE Main St, Portland, OR, 97216. Phone: (503) 257-7757. Providers update this record themselves, so call before visiting.
How can I verify Alvin K. Nakamura, M.D.'s license?
NPPES lists Oregon license number MD17656, 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.
How much does Alvin K. Nakamura, M.D. prescribe under Medicare Part D?
In 2024, Alvin K. Nakamura, M.D. had 185 Medicare Part D claims for 51 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.