Jen-Tzer Gau, MD
Geriatric Medicine (Internal Medicine) Physician · Athens, OH
Jen-Tzer Gau, MD is a geriatric medicine (internal medicine) physician with a practice address in Athens, Ohio, and NPI 1790757268, issued on Feb 7, 2006. Check the license (Ohio 35079234G, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Jen-Tzer Gau
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 35079234G OH
Self-reported in NPPES; status is on the state search - Practice location
- 142 Parks Hall, Athens, OH 45701
- Phone
- (740) 593-2482
- Enumerated
- Feb 7, 2006
- Record last updated
- Jan 25, 2022
- Fax
- (740) 593-0036
- Medicaid ID
- 2228360 OH
- Medicare enrollment
- Enrolled (PECOS I20070919000034); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 132 in Ohio → Look up another NPI →
Also registered at 142 Parks Hall
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wayne Carlsen, D.O.Geriatric Medicine (Internal Medicine) Physician1871566356
- Cynthia Kuttner, M.D.Geriatric Medicine (Internal Medicine) Physician1164434452
Verify Jen-Tzer Gau in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35079234GCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
6,231 Medicare Part D claims for 204 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 289 claims were for opioids.
Most prescribed
- Spironolactone338 claims
- Potassium Chloride236 claims
- Amlodipine Besylate230 claims
- Lisinopril222 claims
- Metoprolol Succinate181 claims
- Omeprazole178 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
- Ohiohealth CorporationAthens, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jen-Tzer Gau among 132 geriatric medicine (internal medicine) physician records in Ohio
Jen-Tzer Gau, MD is one of 132 geriatric medicine (internal medicine) physician records with a practice address in Ohio. 70% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 33% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 48% of these records are
- Graduated1990 · median 1999 among the 64 with a school on file
- Record last updated2022 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Ohio
There are 132 geriatric medicine (internal medicine) physician records in Ohio.
All 132 in Ohio → Every provider in Athens → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Wayne Carlsen, D.O.Athens, OH 457011871566356
- Cynthia Kuttner, M.D.Athens, OH 457011164434452
- Allison Batchelor, MDBelpre, OH 457141487626925
- Mohammad Shafiq, M.D.Chillicothe, OH 456011366541013
- Jerald Dudney, M.D.Springfield, OH 455051770669871
- Richard Darr, M.D.Springfield, OH 455041477565133
- Gurjeet Kahlon, MDCenterville, OH 454591649209644
- Meenakshi Patel, MDCenterville, OH 454591568458362
Common questions
What is Jen-Tzer Gau, MD's NPI number?
Jen-Tzer Gau, MD's National Provider Identifier (NPI) is 1790757268, issued on Feb 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jen-Tzer Gau, MD located?
The NPPES record lists a practice address at 142 Parks Hall, Athens, OH, 45701. Phone: (740) 593-2482. Providers update this record themselves, so call before visiting.
How can I verify Jen-Tzer Gau, MD's license?
NPPES lists Ohio license number 35079234G, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jen-Tzer Gau, MD prescribe under Medicare Part D?
In 2024, Jen-Tzer Gau, MD had 6,231 Medicare Part D claims for 204 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.