Karen J. Nakamoto, MD
Obstetrics & Gynecology Physician · Hilo, HI
Karen J. Nakamoto, MD is an obstetrics & gynecology physician with a practice address in Hilo, Hawaii, and NPI 1770645988, issued on Dec 14, 2006. Check the license (Hawaii MD9461, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karen J. Nakamoto
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD9461 HI
Self-reported in NPPES; status is on the state search - Practice location
- 82 Puuhonu Place, Hilo, HI 96720
- Phone
- (808) 935-7765
- Enumerated
- Dec 14, 2006
- Record last updated
- Oct 24, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (808) 969-7990
- Medicaid ID
- 07879801 HI
- Medicare enrollment
- Enrolled (PECOS I20080616000798); accepts Medicare assignment
- Medical or professional school
- University Of Hawaii John A. Burns School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 288 in Hawaii → Look up another NPI →
Also registered at 82 Puuhonu Place
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lisa HironagaPharmacist1386860690
- Raymond Lee, MDVascular Surgery Physician1346302544
Verify Karen J. Nakamoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD9461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
556 Medicare Part D claims for 192 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Raloxifene Hcl157 claims
- Alendronate Sodium54 claims
- Clotrimazole-Betamethasone42 claims
- Premarin39 claims
- Estradiol31 claims
- Prolia29 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.
Industry payments in 2024: $13.28
1 payment: food and beverage; the largest payer was Exeltis, USA Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Karen J. Nakamoto among 288 obstetrics & gynecology physician records in Hawaii
Karen J. Nakamoto, MD 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
- Graduated1988 · median 2006 among the 158 with a school on file
- 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 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
- Frederick Nitta, M.D.Hilo, HI 967201023119385
- Paris StowersHilo, HI 967201275953564
- Ronaldo Toledo, M.D.Hilo, HI 967201568410124
- Quyen-Anh Tran, MDHilo, HI 967201467754432
Common questions
What is Karen J. Nakamoto, MD's NPI number?
Karen J. Nakamoto, MD's National Provider Identifier (NPI) is 1770645988, issued on Dec 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Karen J. Nakamoto, MD located?
The NPPES record lists a practice address at 82 Puuhonu Place, Hilo, HI, 96720. Phone: (808) 935-7765. Providers update this record themselves, so call before visiting.
How can I verify Karen J. Nakamoto, MD's license?
NPPES lists Hawaii license number MD9461, 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 Karen J. Nakamoto, MD prescribe under Medicare Part D?
In 2024, Karen J. Nakamoto, MD had 556 Medicare Part D claims for 192 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.