Eric S. Shay, M.D.
Internal Medicine Physician · Kalamazoo, MI
Eric S. Shay, M.D. is an internal medicine physician with a practice address in Kalamazoo, Michigan, and NPI 1003858770, issued on Jun 10, 2006. Check the license (Michigan 4301059651, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Eric S. Shay
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301059651 MI
Self-reported in NPPES; status is on the state search - Practice location
- 601 John St, Kalamazoo, MI 49007
- Phone
- (269) 381-5060
- Enumerated
- Jun 10, 2006
- Record last updated
- Nov 27, 2023
- Fax
- (269) 381-1655
- Medicaid IDs
- 3489263-10 MI
1003858770 MI - Medicare enrollment
- Enrolled (PECOS I20100429000611); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 1992
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 601 John St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lawrence Abramson, MDInternal Medicine Physician1467413575
- Karina Acevedo, PA-CMedical Physician Assistant1083150460
- Autumn AdamsEmergency Medical Services (Emergency Medicine) Physician1609350586
- Fadi Ajine, MDRheumatology Physician1275533986
- Hussein Akl, MDInternal Medicine Physician1699757849
- Kwsai Al-Rahhal, MDSleep Medicine (Internal Medicine) Physician1639159247
Verify Eric S. Shay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301059651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.4 times the Medicare Part D claims of the average internal medicine physician in 2024
10,653 Medicare Part D claims for 761 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 272 claims were for opioids.
Most prescribed
- Atorvastatin Calcium807 claims
- Levothyroxine Sodium614 claims
- Amlodipine Besylate504 claims
- Losartan Potassium483 claims
- Enalapril Maleate381 claims
- Rosuvastatin Calcium352 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.
2 hospitals and group practices
- Bronson Methodist HospitalPortage, MI · Acute Care Hospitals4 of 5 stars
- Powerback Rehabilitation LLCPortage, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Eric S. Shay among 5,735 internal medicine physician records in Michigan
Eric S. Shay, M.D. 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 fileYes · 62% of these records are
- Graduated1992 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 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).
158 internal medicine physician records list a practice address in Kalamazoo
They are 158 of the 6,553 NPPES records with a practice address in Kalamazoo, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Kalamazoo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Lawrence Abramson, MDKalamazoo, MI 490071467413575
- Hussein Akl, MDKalamazoo, MI 490071699757849
- Todd Bennett, DOKalamazoo, MI 490071548233562
- Owen Berow, MDKalamazoo, MI 490071275526600
- James Carter, MDKalamazoo, MI 490071952371411
- Kathryn Grossman, MDKalamazoo, MI 490071780658146
- Eve Inchardi, MDKalamazoo, MI 490071881664324
- Paula Lunde, MDKalamazoo, MI 490071659341121
Common questions
What is Eric S. Shay, M.D.'s NPI number?
Eric S. Shay, M.D.'s National Provider Identifier (NPI) is 1003858770, issued on Jun 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Eric S. Shay, M.D. located?
The NPPES record lists a practice address at 601 John St, Kalamazoo, MI, 49007. Phone: (269) 381-5060. Providers update this record themselves, so call before visiting.
How can I verify Eric S. Shay, M.D.'s license?
NPPES lists Michigan license number 4301059651, 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 Eric S. Shay, M.D. prescribe under Medicare Part D?
In 2024, Eric S. Shay, M.D. had 10,653 Medicare Part D claims for 761 beneficiaries; 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.