Robert A. Ayres, MD
Hospitalist Physician · Terre Haute, IN
Robert A. Ayres, MD is a hospitalist physician with a practice address in Terre Haute, Indiana, and NPI 1609507789, issued on Jun 21, 2022. Check the license (Indiana 01091255A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.
- Name
- Robert A. Ayres
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- 01091255A IN
Self-reported in NPPES; status is on the state search - Practice location
- 1530 N 7TH St Ste 200, Terre Haute, IN 47807
- Phone
- (812) 238-7631
- Enumerated
- Jun 21, 2022
- Record last updated
- Jul 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20240417002974); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 453 in Indiana → Look up another NPI →
Also registered at 1530 N 7TH St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samuel AllenStudent in an Organized Health Care Education/Training Program1780513226
- Jessica Bun, MDFamily Medicine Physician1982288734
- Niloy Chatterjee, MDHospitalist Physician1396360483
- Eugene Epplin, M.D.Family Medicine Physician1528174182
- Abigail Etters, DOHospitalist Physician1437773678
- Abeera Fatima, MDStudent in an Organized Health Care Education/Training Program1013801265
Verify Robert A. Ayres in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Licensing Board of Indiana
Search for license 01091255ACheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% more Medicare Part D claims than the average hospitalist physician in 2024
1,034 Medicare Part D claims for 99 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium64 claims
- Eliquis46 claims
- Lisinopril43 claims
- Furosemide37 claims
- Metformin Hcl35 claims
- Famotidine28 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.
Industry payments in 2024: $227.87
12 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. The 7,324 providers of this specialty with any payment received $494.84 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.
Bills Medicare through 2 group practices
- Cogent Healthcare OF Kentucky, PscLouisville, KY
- St Vincent Williamsport HospitalWilliamsport, IN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert A. Ayres among 453 hospitalist physician records in Indiana
Robert A. Ayres, MD is one of 453 hospitalist physician records with a practice address in Indiana. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 84% of these records are
- Graduated2022 · median 2008 among the 379 with a school on file
- Record last updated2024 · 31% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Indiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Indiana
There are 453 hospitalist physician records in Indiana.
All 453 in Indiana → Every provider in Terre Haute → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Niloy Chatterjee, MDTerre Haute, IN 478071396360483
- Abigail Etters, DOTerre Haute, IN 478071437773678
- Angela HatfieldTerre Haute, IN 478071326427873
- Sean Hauser, MDTerre Haute, IN 478071336716042
- Benjamin Lahood, MDTerre Haute, IN 478071275055709
- Darcy Lash, MDTerre Haute, IN 478071659728244
- Arsalan Mohammad, MDTerre Haute, IN 478071457975260
- Devin Santa, MDTerre Haute, IN 478071063196061
Common questions
What is Robert A. Ayres, MD's NPI number?
Robert A. Ayres, MD's National Provider Identifier (NPI) is 1609507789, issued on Jun 21, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Robert A. Ayres, MD located?
The NPPES record lists a practice address at 1530 N 7TH St Ste 200, Terre Haute, IN, 47807. Phone: (812) 238-7631. Providers update this record themselves, so call before visiting.
How can I verify Robert A. Ayres, MD's license?
NPPES lists Indiana license number 01091255A, 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 Robert A. Ayres, MD prescribe under Medicare Part D?
In 2024, Robert A. Ayres, MD had 1,034 Medicare Part D claims for 99 beneficiaries; the average among hospitalist physician prescribers was 521. 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.