Alan J. Watanabe, M.D.
Internal Medicine Physician · Columbus, IN
Alan J. Watanabe, M.D. is an internal medicine physician with a practice address in Columbus, Indiana, and NPI 1518961507, issued on Jun 8, 2005. Check the license (Indiana 01032855, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Alan J. Watanabe
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 01032855 IN
Self-reported in NPPES; status is on the state search - Practice location
- 4050 Central Avenue, Columbus, IN 47203
- Phone
- (812) 376-9427
- Enumerated
- Jun 8, 2005
- Record last updated
- Jan 14, 2026
- Medicaid ID
- 100342750 IN
- Medicare enrollment
- Enrolled (PECOS I20070607000545); accepts Medicare assignment
- Medical or professional school
- Indiana University School Of Medicine, 1983
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,109 in Indiana → Look up another NPI →
Also registered at 4050 Central Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donnamarie Darcy-Loescher, M.D.Internal Medicine Physician1700880606
- Joseph Sheehy, MDInternal Medicine Physician1992709893
- Dennis Stone, MDInternal Medicine Physician1699779587
Verify Alan J. Watanabe in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01032855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.0 times the Medicare Part D claims of the average internal medicine physician in 2024
12,558 Medicare Part D claims for 890 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 243 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium780 claims
- Atorvastatin Calcium607 claims
- Losartan Potassium604 claims
- Amlodipine Besylate442 claims
- Levothyroxine Sodium398 claims
- Metoprolol Succinate377 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.
The MIPS final score for 2023 (Medicare payment program): 90.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $398.61
16 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Alan J. Watanabe among 2,109 internal medicine physician records in Indiana
Alan J. Watanabe, M.D. is one of 2,109 internal medicine physician records with a practice address in Indiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1983 · median 2005 among the 1,448 with a school on file
- Record last updated2026 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 internal medicine physician records list a practice address in Columbus
They are 17 of the 1,619 NPPES records with a practice address in Columbus, and 2,109 internal medicine physician records in Indiana.
All 2,109 in Indiana → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Donnamarie Darcy-Loescher, M.D.Columbus, IN 472031700880606
- Clarita Kalovidouris, MDColumbus, IN 472031396741336
- Theodora Saddoris, MDColumbus, IN 472031245280536
- Joseph Sheehy, MDColumbus, IN 472031992709893
- Dennis Stone, MDColumbus, IN 472031699779587
- Paula Villarejo, MDColumbus, IN 472031144516642
- Preetam Bollampally, MDColumbus, IN 472011386059756
- Rachel CooperColumbus, IN 472011700152162
Common questions
What is Alan J. Watanabe, M.D.'s NPI number?
Alan J. Watanabe, M.D.'s National Provider Identifier (NPI) is 1518961507, issued on Jun 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Alan J. Watanabe, M.D. located?
The NPPES record lists a practice address at 4050 Central Avenue, Columbus, IN, 47203. Phone: (812) 376-9427. Providers update this record themselves, so call before visiting.
How can I verify Alan J. Watanabe, M.D.'s license?
NPPES lists Indiana license number 01032855, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Alan J. Watanabe, M.D. prescribe under Medicare Part D?
In 2024, Alan J. Watanabe, M.D. had 12,558 Medicare Part D claims for 890 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Alan J. Watanabe, M.D.'s MIPS final score?
The 2023 MIPS final score is 90.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.