NPPES file of Aug 9, 2026

John Mitsuo Nakayama, M.D.

Gynecologic Oncology Physician · Pittsburgh, PA

John Mitsuo Nakayama, M.D. is a gynecologic oncology physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1528266483, issued on Jul 3, 2007. Check the license (Pennsylvania MD472231, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528266483
Name
John Mitsuo Nakayama
Credential
M.D.
Primary taxonomy
Gynecologic Oncology Physician 207VX0201X
License numbers
MD472231 PA
142503 NC
35.123875 OH
0116023283 VA
Self-reported in NPPES; status is on the state search
Practice location
4815 Liberty Ave Ste 310, Pittsburgh, PA 15224
Phone
(412) 578-1116
Enumerated
Jul 3, 2007
Record last updated
Feb 24, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicaid ID
0105976 OH
Medicare enrollment
Enrolled (PECOS I20210302000007); accepts Medicare assignment
Medical or professional school
University Of Hawaii John A. Burns School Of Medicine, 2007
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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Also registered at 4815 Liberty Ave Ste 310

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shannon Campbell, PA-CMedical Physician Assistant1497264964
  2. Natalie Dupre, PA-CPhysician Assistant1437509288
  3. Amanda Erlain, PA-CMedical Physician Assistant1235817297
  4. Monica Herman, PA-CMedical Physician Assistant1780041400
  5. Donna Kinzler, CRNPAcute Care Nurse Practitioner1770783383
  6. Eirwen Miller, M.D.Gynecologic Oncology Physician1720303126

Verify John Mitsuo Nakayama in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD472231
    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 Pennsylvania license search

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60% fewer Medicare Part D claims than the average gynecologic oncology physician in 2024

78 Medicare Part D claims for 25 beneficiaries, against an average of 195 among the 1,475 providers of this specialty who prescribed in Part D.

  1. John Nakayama78
  2. Specialty average195

Most prescribed

  1. Dexamethasone46 claims
  2. Prochlorperazine Maleate12 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.

The MIPS final score for 2023 (Medicare payment program): 93.8 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 score85.1
  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).

Industry payments in 2024: $33,506.75

39 payments; by number, the most common kind was food and beverage; the largest payer was Eisai Inc. The 1,199 providers of this specialty with any payment received $6,387.20 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Nakayama$33,507
  2. Specialty average$6,387

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Allegheny ClinicPittsburgh, PA

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

John Mitsuo Nakayama among 98 gynecologic oncology physician records in Pennsylvania

John Mitsuo Nakayama, M.D. is one of 98 gynecologic oncology physician records with a practice address in Pennsylvania. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 42% of them.

  • NPI issued2007 · 42% of these records are older, 50% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2007 · median 2006 among the 73 with a school on file
  • Record last updated2021 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VX0201X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gynecologic Oncology Physician providers in Pennsylvania

There are 98 gynecologic oncology physician records in Pennsylvania.

The 8 gynecologic oncology physician records with the nearest ZIP codes

  1. Sarah Crafton, M.D.Pittsburgh, PA 152241144517699
  2. Thomas Krivak, MDPittsburgh, PA 152241609840057
  3. Eirwen Miller, M.D.Pittsburgh, PA 152241720303126
  4. Christopher Morse, M.D.Pittsburgh, PA 152241689940017
  5. Eileen Segreti, MDPittsburgh, PA 152241245248988
  6. Nujsaubnusi Vue, MDPittsburgh, PA 152241952863441
  7. Jessica BergerPittsburgh, PA 152131679735864
  8. Michelle BoisenPittsburgh, PA 152131700028818

Common questions

What is John Mitsuo Nakayama, M.D.'s NPI number?

John Mitsuo Nakayama, M.D.'s National Provider Identifier (NPI) is 1528266483, issued on Jul 3, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Mitsuo Nakayama, M.D. located?

The NPPES record lists a practice address at 4815 Liberty Ave Ste 310, Pittsburgh, PA, 15224. Phone: (412) 578-1116. Providers update this record themselves, so call before visiting.

How can I verify John Mitsuo Nakayama, M.D.'s license?

NPPES lists Pennsylvania license number MD472231, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Mitsuo Nakayama, M.D. prescribe under Medicare Part D?

In 2024, John Mitsuo Nakayama, M.D. had 78 Medicare Part D claims for 25 beneficiaries; the average among gynecologic oncology physician prescribers was 195. Part D covers Medicare prescriptions only.

What is John Mitsuo Nakayama, M.D.'s MIPS final score?

The 2023 MIPS final score is 93.8 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.