Robb K. Ohtani, M.D.
Obstetrics & Gynecology Physician · Honolulu, HI
Robb K. Ohtani, M.D. is an obstetrics & gynecology physician with a practice address in Honolulu, Hawaii, and NPI 1184740102, issued on Mar 21, 2007. Check the license (Hawaii MD-5895, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robb K. Ohtani
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- MD-5895 HI
Self-reported in NPPES; status is on the state search - Practice location
- 1329 Lusitana St Ste 402, Honolulu, HI 96813
- Phone
- (808) 538-3787
- Enumerated
- Mar 21, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (808) 538-7873
- Medicaid ID
- 024892-01 HI
- Medicare enrollment
- Enrolled (PECOS I20120403000074); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 288 in Hawaii → Look up another NPI →
Also registered at 1329 Lusitana St Ste 402
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nathan Fujita, M.D.Obstetrics & Gynecology Physician1710003884
- Kimberly Perkins, M.D.Obstetrics & Gynecology Physician1659498681
- Norman Sato, M.D.Gynecology Physician1326165374
Verify Robb K. Ohtani in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-5895Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% more Medicare Part D claims than the average obstetrics & gynecology physician in 2024
172 Medicare Part D claims for 76 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Estradiol33 claims
- Prolia26 claims
- Alendronate Sodium22 claims
- Raloxifene Hcl14 claims
- Progesterone11 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: $32.95
1 payment: food and beverage; the largest payer was Amgen 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.
Bills Medicare through one group practice
- Queens University Medical GroupHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robb K. Ohtani among 288 obstetrics & gynecology physician records in Hawaii
Robb K. Ohtani, 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 2007, is newer than 42% of them.
- NPI issued2007 · 42% of these records are older, 43% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1983 · 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).
160 obstetrics & gynecology physician records list a practice address in Honolulu
They are 160 of the 12,408 NPPES records with a practice address in Honolulu, and 288 obstetrics & gynecology physician records in Hawaii.
All 288 in Hawaii → Every provider in Honolulu → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Chao Chen, MDHonolulu, HI 968131891866240
- Benton Chun, M.D.Honolulu, HI 968131821176454
- Franklin Dao, MDHonolulu, HI 968131174617609
- Gary Fujimoto, M.D.Honolulu, HI 968131902960883
- Denise Hew, M.D.Honolulu, HI 968131700972544
- Bruce Kessel, M.D.Honolulu, HI 968131972550523
- Melanie Lau, M.D.Honolulu, HI 968131538200142
- Renee Sato, MDHonolulu, HI 968131861447120
Common questions
What is Robb K. Ohtani, M.D.'s NPI number?
Robb K. Ohtani, M.D.'s National Provider Identifier (NPI) is 1184740102, issued on Mar 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robb K. Ohtani, M.D. located?
The NPPES record lists a practice address at 1329 Lusitana St Ste 402, Honolulu, HI, 96813. Phone: (808) 538-3787. Providers update this record themselves, so call before visiting.
How can I verify Robb K. Ohtani, M.D.'s license?
NPPES lists Hawaii license number MD-5895, 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 Robb K. Ohtani, M.D. prescribe under Medicare Part D?
In 2024, Robb K. Ohtani, M.D. had 172 Medicare Part D claims for 76 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.