Brian S. Hays, DO
Internal Medicine Physician · Battle Creek, MI
Brian S. Hays, DO is an internal medicine physician with a practice address in Battle Creek, Michigan, and NPI 1356452999, issued on Aug 31, 2006. Check the license (Michigan 5315108518, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Brian S. Hays
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 5315108518 MI
5101013373 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5500 Armstrong RD, Battle Creek, MI 49037
- Phone
- (269) 966-5600
- Enumerated
- Aug 31, 2006
- Record last updated
- Feb 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (269) 223-5136
- Medicaid ID
- 4945690 MI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 5500 Armstrong RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Emily Almacddissi, MSWClinical Social Worker1134726847
- Liz Alvarado, FAMILY NURSE PRACTITNurse Practitioner1275841421
- Kathryn Amor, PHARM.DAmbulatory Care Pharmacist1184145450
- Kathy Anderson, DPMPodiatrist1356325039
Verify Brian S. Hays in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5315108518Check 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% fewer Medicare Part D claims than the average internal medicine physician in 2024
48 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Tranylcypromine Sulfate15 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.
Brian S. Hays among 5,735 internal medicine physician records in Michigan
Brian S. Hays, DO is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 60% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2020 · 54% 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 Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
45 internal medicine physician records list a practice address in Battle Creek
They are 45 of the 2,117 NPPES records with a practice address in Battle Creek, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Battle Creek → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Samir Bateriwala, MDBattle Creek, MI 490371073835476
- Paul Bornemann, MDBattle Creek, MI 490371619954054
- Sudhir Desai, MDBattle Creek, MI 490371992741227
- Christina Helms, MDBattle Creek, MI 490371346200110
- Aye Mar, MDBattle Creek, MI 490371154383578
- Corey Murphy, M.D.Battle Creek, MI 490371376924951
- Suceil Sivsammye, MDBattle Creek, MI 490371336521103
- Alec Wilson, MDBattle Creek, MI 490371780064691
Common questions
What is Brian S. Hays, DO's NPI number?
Brian S. Hays, DO's National Provider Identifier (NPI) is 1356452999, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian S. Hays, DO located?
The NPPES record lists a practice address at 5500 Armstrong RD, Battle Creek, MI, 49037. Phone: (269) 966-5600. Providers update this record themselves, so call before visiting.
How can I verify Brian S. Hays, DO's license?
NPPES lists Michigan license number 5315108518, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian S. Hays, DO prescribe under Medicare Part D?
In 2024, Brian S. Hays, DO had 48 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.