John Tarnowski
Emergency Medicine Physician · Honolulu, HI
John Tarnowski is an emergency medicine physician with a practice address in Honolulu, Hawaii, and NPI 1417506445, issued on Sep 11, 2019. Check the license (Hawaii AMD-1106, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Tarnowski
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- AMD-1106 HI
PA58088 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 Kapiolani Blvd Ste 705, Honolulu, HI 96813
- Phone
- (808) 597-8778
- Enumerated
- Sep 11, 2019
- Record last updated
- Feb 11, 2022
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 370 in Hawaii → Look up another NPI →
Also registered at 770 Kapiolani Blvd Ste 705
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bryan Batdorf, PAEmergency Medicine Physician1568865657
- Alana Behrens, MDEmergency Medicine Physician1225611544
- Vladimir Bernstein, MDEmergency Medicine Physician1689298853
- Ajay BhattEmergency Medicine Physician1164606646
- Laura CheckleyEmergency Medicine Physician1225666803
- Sophia Cohen, MDEmergency Medicine Physician1417453002
Verify John Tarnowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license AMD-1106Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average emergency medicine physician in 2024
251 Medicare Part D claims for 161 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Cephalexin34 claims
- Diclofenac Sodium26 claims
- Doxycycline Hyclate25 claims
- Amoxicillin-Clavulanate Potass18 claims
- Ibuprofen13 claims
- Oxycodone Hcl12 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.
John Tarnowski among 370 emergency medicine physician records in Hawaii
John Tarnowski is one of 370 emergency medicine physician records with a practice address in Hawaii. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 11% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2022 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
161 emergency medicine physician records list a practice address in Honolulu
They are 161 of the 12,408 NPPES records with a practice address in Honolulu, and 370 emergency medicine physician records in Hawaii.
All 370 in Hawaii → Every provider in Honolulu → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Vijak Ayasanonda, M.D.Honolulu, HI 968131346285582
- Monte Elias, M.D.Honolulu, HI 968131821024985
- Mark Flanagan, DOHonolulu, HI 968131679559132
- Lily Gallagher, M.D.Honolulu, HI 968131538198916
- Ramsey Hasan, MDHonolulu, HI 968131184662256
- Matt Ing, M.D.Honolulu, HI 968131295770881
- Eric Klemmer, M.D.Honolulu, HI 968131346276052
- Dale Oda, M.D.Honolulu, HI 968131831126556
Common questions
What is John Tarnowski's NPI number?
John Tarnowski's National Provider Identifier (NPI) is 1417506445, issued on Sep 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Tarnowski located?
The NPPES record lists a practice address at 770 Kapiolani Blvd Ste 705, Honolulu, HI, 96813. Phone: (808) 597-8778. Providers update this record themselves, so call before visiting.
How can I verify John Tarnowski's license?
NPPES lists Hawaii license number AMD-1106, 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 John Tarnowski prescribe under Medicare Part D?
In 2024, John Tarnowski had 251 Medicare Part D claims for 161 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.