NPPES file of Aug 9, 2026

Denny A. Nakayama, MD

Rheumatology Physician · Honolulu, HI

Denny A. Nakayama, MD is a rheumatology physician with a practice address in Honolulu, Hawaii, and NPI 1558374066, issued on Aug 14, 2006. Check the license (Hawaii MD-4632, as entered in NPPES) on the Hawaii Medical Board; 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
1558374066
Name
Denny A. Nakayama
Credential
MD
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
MD-4632 HI
Self-reported in NPPES; status is on the state search
Practice location
321 N Kuakini St, Honolulu, HI 96817
Phone
(808) 545-4660
Enumerated
Aug 14, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(808) 545-4662
Medicaid ID
01332001 HI
Medicare enrollment
Enrolled (PECOS I20100916000427); may accept Medicare assignment
Medical or professional school
University Of Colorado School Of Medicine, Denver, 1976
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 321 N Kuakini St

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

  1. Jared Acoba, M.D.Hematology & Oncology Physician1508889338
  2. Thomas Au, MDInternal Medicine Physician1184770463
  3. Timothy Au, M.D.Internal Medicine Physician1518287598
  4. Steven Azuma, M.D.Cardiovascular Disease Physician1518966233
  5. Arlene Baldillo, D.O.Obstetrics & Gynecology Physician1124234331
  6. Baron Ching, M.D.Internal Medicine Physician1003959065

Verify Denny A. Nakayama in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersHawaii Medical Board
    Search for license MD-4632
    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 Hawaii license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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22% more Medicare Part D claims than the average rheumatology physician in 2024

2,420 Medicare Part D claims for 363 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 264 claims were for opioids.

  1. Denny Nakayama2,420
  2. Specialty average1,978

Most prescribed

  1. Prednisone421 claims
  2. Hydroxychloroquine Sulfate349 claims
  3. Methotrexate297 claims
  4. Rinvoq116 claims
  5. Allopurinol114 claims
  6. Hydrocodone-Acetaminophen103 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $747.39

36 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Denny Nakayama$747.39
  2. Specialty average$8,538.33

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

Denny A. Nakayama among 24 rheumatology physician records in Hawaii

Denny A. Nakayama, MD is one of 24 rheumatology physician records with a practice address in Hawaii. 75% 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 13% of them.

  • NPI issued2006 · 13% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1976 · median 2003 among the 15 with a school on file
  • Record last updated2007 · 75% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Hawaii

There are 24 rheumatology physician records in Hawaii.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Daniel Brandt, M.D.Honolulu, HI 968171316929011
  2. Panu Limpisvasti, MDHonolulu, HI 968171518902295
  3. Dennis Boulware, MDHonolulu, HI 968191689621674
  4. David Finger, M.D.Honolulu, HI 968191689663890
  5. Michiko Inaba, MDHonolulu, HI 968191083833388
  6. Eunjung KimHonolulu, HI 968191487074365
  7. James McKoy, MDHonolulu, HI 968191902907058
  8. Janice Zane, MDHonolulu, HI 968191841325602

Common questions

What is Denny A. Nakayama, MD's NPI number?

Denny A. Nakayama, MD's National Provider Identifier (NPI) is 1558374066, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Denny A. Nakayama, MD located?

The NPPES record lists a practice address at 321 N Kuakini St, Honolulu, HI, 96817. Phone: (808) 545-4660. Providers update this record themselves, so call before visiting.

How can I verify Denny A. Nakayama, MD's license?

NPPES lists Hawaii license number MD-4632, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Denny A. Nakayama, MD prescribe under Medicare Part D?

In 2024, Denny A. Nakayama, MD had 2,420 Medicare Part D claims for 363 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.

What is Denny A. Nakayama, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.