John E. O'Mara, M.D.
Interventional Cardiology Physician · Honolulu, HI
John E. O'Mara, M.D. is an interventional cardiology physician with a practice address in Honolulu, Hawaii, and NPI 1548376601, issued on Aug 22, 2006. Check the license on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- John E. O'Mara
- Credential
- M.D.
- Primary taxonomy
- Interventional Cardiology Physician 207RI0011X
- License numbers
- RT-1503 NH
MD60320133 WA
8644A WY
Self-reported in NPPES; status is on the state search - Practice location
- 3288 Moanalua RD, Honolulu, HI 96819
- Phone
- (808) 432-0000
- Enumerated
- Aug 22, 2006
- Record last updated
- Aug 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 1548376601 WY
- Medicare enrollment
- Enrolled (PECOS I20211014002834); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest interventional cardiology physician records → All 22 in Hawaii → Look up another NPI →
Also registered at 3288 Moanalua RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Randal Aaberg, MDUrology Physician1588763981
- Peter Abcarian, MDVascular & Interventional Radiology Physician1457451155
- Melissa Abraham, M.A., CCC-SLPSpeech-Language Pathologist1295064301
- Alan Ahana, MDAnesthesiology Physician1376742239
- Harrison Aihara, PHARMDPharmacist1124174321
- Oluwatoyin Ajose, MDPediatrics Physician1114090008
Verify John E. O'Mara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average interventional cardiology physician in 2024
953 Medicare Part D claims for 225 beneficiaries, against an average of 3,179 among the 6,605 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Metoprolol Succinate175 claims
- Pradaxa93 claims
- Clopidogrel48 claims
- Amlodipine Besylate40 claims
- Losartan Potassium39 claims
- Isosorbide Mononitrate Er37 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.
Bills Medicare through one group practice
- Hawaii Permanente Medical Group IncHonolulu, HI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John E. O'Mara among 22 interventional cardiology physician records in Hawaii
John E. O'Mara, M.D. is one of 22 interventional cardiology physician records with a practice address in Hawaii. 73% 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 23% of them.
- NPI issued2006 · 23% of these records are older, 41% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2001 · median 2002 among the 15 with a school on file
- Record last updated2021 · 68% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0011X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Interventional Cardiology Physician providers in Hawaii
There are 22 interventional cardiology physician records in Hawaii.
All 22 in Hawaii → Every provider in Honolulu → Interventional Cardiology Physician nationwide →
The 8 interventional cardiology physician records with the nearest ZIP codes
- Stephen Chan, MDHonolulu, HI 968191922108810
- Jay Gadgil, M.D.Honolulu, HI 968191487827291
- Marie Nguyen, MDHonolulu, HI 968191922109024
- Giselle Baquero Caranama, M.D.Honolulu, HI 968171437383213
- John Cogan, M.D.Honolulu, HI 968131700886033
- Lee Guertler, M.D.Honolulu, HI 968131477582468
- Brandon Kai, M.D.Honolulu, HI 968131285913632
- Kris Kawamoto, MDHonolulu, HI 968131649618844
Common questions
What is John E. O'Mara, M.D.'s NPI number?
John E. O'Mara, M.D.'s National Provider Identifier (NPI) is 1548376601, issued on Aug 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John E. O'Mara, M.D. located?
The NPPES record lists a practice address at 3288 Moanalua RD, Honolulu, HI, 96819. Phone: (808) 432-0000. Providers update this record themselves, so call before visiting.
How can I verify John E. O'Mara, M.D.'s license?
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 John E. O'Mara, M.D. prescribe under Medicare Part D?
In 2024, John E. O'Mara, M.D. had 953 Medicare Part D claims for 225 beneficiaries; the average among interventional cardiology physician prescribers was 3,179. 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.