Frederick Alan Nitta, M.D.
Obstetrics & Gynecology Physician · Hilo, HI
Frederick Alan Nitta, M.D. is an obstetrics & gynecology physician with a practice address in Hilo, Hawaii, and NPI 1023119385, issued on Sep 26, 2006. Check the license (Hawaii MD6338, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Frederick Alan Nitta
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD6338 HI
Self-reported in NPPES; status is on the state search - Practice location
- 670 Ponahawai St, Hilo, HI 96720
- Phone
- (808) 961-5922
- Enumerated
- Sep 26, 2006
- Record last updated
- Feb 7, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (808) 969-1924
- Medicaid ID
- 041524-01 HI
- Medicare enrollment
- Enrolled (PECOS I20100917000474); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 288 in Hawaii → Look up another NPI →
Also registered at 670 Ponahawai St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melanie Arakaki, MDFamily Medicine Physician1023170610
- David Camacho, MDDiagnostic Radiology Physician1265499826
- Aaron Chun, PHARMDPharmacist1366791113
- Anandom Hariharan, MDUrology Physician1447200332
- Robert Irvine, MDOrthopaedic Surgery Physician1336179167
- Craig Kadooka, M.D.Internal Medicine Physician1467419630
Verify Frederick Alan Nitta in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD6338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.5 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
1,245 Medicare Part D claims for 125 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 18 claims were for opioids.
Most prescribed
- Atorvastatin Calcium141 claims
- Lisinopril103 claims
- Triamterene-Hydrochlorothiazid88 claims
- Calcitonin-Salmon49 claims
- Amlodipine Besylate47 claims
- Metformin Hcl45 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.
Frederick Alan Nitta among 288 obstetrics & gynecology physician records in Hawaii
Frederick Alan Nitta, M.D. is one of 288 obstetrics & gynecology physician records with a practice address in Hawaii. 67% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 58% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1989 · median 2006 among the 158 with a school on file
- Record last updated2008 · 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 207V00000X and a Hawaii 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 Hawaii
There are 288 obstetrics & gynecology physician records in Hawaii.
All 288 in Hawaii → Every provider in Hilo → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Eric Helms, M.D.Hilo, HI 967201417007451
- Randall Hirata, M.D.Hilo, HI 967201578660957
- Kareem Khozaim, M.D.Hilo, HI 967201336467810
- Ung Lee, M.D.Hilo, HI 967201295814614
- Karen Nakamoto, MDHilo, HI 967201770645988
- Paris StowersHilo, HI 967201275953564
- Ronaldo Toledo, M.D.Hilo, HI 967201568410124
- Quyen-Anh Tran, MDHilo, HI 967201467754432
Common questions
What is Frederick Alan Nitta, M.D.'s NPI number?
Frederick Alan Nitta, M.D.'s National Provider Identifier (NPI) is 1023119385, issued on Sep 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Alan Nitta, M.D. located?
The NPPES record lists a practice address at 670 Ponahawai St, Hilo, HI, 96720. Phone: (808) 961-5922. Providers update this record themselves, so call before visiting.
How can I verify Frederick Alan Nitta, M.D.'s license?
NPPES lists Hawaii license number MD6338, 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 Frederick Alan Nitta, M.D. prescribe under Medicare Part D?
In 2024, Frederick Alan Nitta, M.D. had 1,245 Medicare Part D claims for 125 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.