Thomas Au, MD
Internal Medicine Physician · Honolulu, HI
Thomas Au, MD is an internal medicine physician with a practice address in Honolulu, Hawaii, and NPI 1184770463, issued on Jan 26, 2007. Check the license on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Thomas Au
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- Practice location
- 321 N Kuakini St, Honolulu, HI 96817
- Phone
- (808) 521-3885
- Enumerated
- Jan 26, 2007
- Entity
- Type 1 · individual
Also registered at 321 N Kuakini St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jared Acoba, M.D.Hematology & Oncology Physician1508889338
- Timothy Au, M.D.Internal Medicine Physician1518287598
- Steven Azuma, M.D.Cardiovascular Disease Physician1518966233
- Arlene Baldillo, D.O.Obstetrics & Gynecology Physician1124234331
- Baron Ching, M.D.Internal Medicine Physician1003959065
- Ronald Chock, M.D.Otolaryngology Physician1891812236
Verify Thomas Au 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
3.2 times the Medicare Part D claims of the average internal medicine physician in 2024
9,019 Medicare Part D claims for 703 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 227 claims were for opioids.
Most prescribed
- Atorvastatin Calcium512 claims
- Amlodipine Besylate340 claims
- Losartan Potassium332 claims
- Levothyroxine Sodium282 claims
- Lisinopril261 claims
- Albuterol Sulfate Hfa223 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.
One hospital or facility affiliation
- Queens North Hawaii Community HospitalKamuela, HI
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
676 internal medicine physician records list a Honolulu practice address
They are 676 of the 12,408 NPPES records with a Honolulu practice address, and 1,022 internal medicine physician records in Hawaii.
All 676 in Honolulu → All 1,022 in Hawaii → Every provider in Honolulu →
Other internal medicine physician records in Hawaii
- Michael Abdo, M.D.Ewa Beach, HI1730671116
- Carlos Abeyta, MDHilo, HI1942253109
- Harry Acuna, MDWaipahu, HI1598872707
- Dale Adams, MDKailua, HI1982709101
- Kevin Adams, MDHonolulu, HI1275640567
- Quinlinn Adolpho, MDTripler Amc, HI1871098483
- Kyan Renie AgbayaniHonolulu, HI1083101323
- Wesam Agha, DOKealakekua, HI1700273554
- Ron Ah Loy, M.D.Kamuela, HI1598795403
- Timothy Ahu, MDAiea, HI1275611204
Common questions
What is Thomas Au, MD's NPI number?
Thomas Au, MD's National Provider Identifier (NPI) is 1184770463, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Au, MD located?
The NPPES record lists a practice address at 321 N Kuakini St, Honolulu, HI, 96817. Phone: (808) 521-3885. Providers update this record themselves, so call before visiting.
How can I verify Thomas Au, MD'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 Thomas Au, MD prescribe under Medicare Part D?
In 2024, Thomas Au, MD had 9,019 Medicare Part D claims for 703 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.