Andrew Ostosh
Emergency Medicine Physician · Saginaw, MI
Andrew Ostosh is an emergency medicine physician with a practice address in Saginaw, Michigan, and NPI 1073003208, issued on May 14, 2018. Check the license (Michigan 430114931, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Andrew Ostosh
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 430114931 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Houghton Ave, Saginaw, MI 48602
- Phone
- (989) 583-6800
- Enumerated
- May 14, 2018
- Record last updated
- May 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20201026000289); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Human Medicine, 2018
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1000 Houghton Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Andrew Ostosh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 430114931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% more Medicare Part D claims than the average emergency medicine physician in 2024
251 Medicare Part D claims for 187 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 23 claims were for opioids.
Most prescribed
- Cephalexin43 claims
- Prednisone30 claims
- Hydrocodone-Acetaminophen20 claims
- Amoxicillin-Clavulanate Potass18 claims
- Ondansetron Odt17 claims
- Naproxen13 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
- Ecs Northern Michigan PCPetoskey, MI
- Helen Newberry Joy HospitalNewberry, MI · Critical Access Hospitals
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).
Andrew Ostosh among 3,083 emergency medicine physician records in Michigan
Andrew Ostosh is one of 3,083 emergency medicine physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 69% of them.
- NPI issued2018 · 69% of these records are older, 26% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2013 among the 1,931 with a school on file
- Record last updated2018 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
182 emergency medicine physician records list a practice address in Saginaw
They are 182 of the 6,008 NPPES records with a practice address in Saginaw, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Saginaw → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Mary Arvanitis, DOSaginaw, MI 486021295722841
- Andrew Bazakis, M.D.Saginaw, MI 486021114914603
- Kevin Carnahan, DOSaginaw, MI 486021124093174
- Kathleen Cowling, DOSaginaw, MI 486021790772283
- Matthew Deibel, MDSaginaw, MI 486021427019652
- Frederick Dunham, MDSaginaw, MI 486021598799082
- Allison Gormley, DOSaginaw, MI 486021912955014
- Kirsten Guenther, M.D.Saginaw, MI 486021861506156
Common questions
What is Andrew Ostosh's NPI number?
Andrew Ostosh's National Provider Identifier (NPI) is 1073003208, issued on May 14, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Ostosh located?
The NPPES record lists a practice address at 1000 Houghton Ave, Saginaw, MI, 48602. Phone: (989) 583-6800. Providers update this record themselves, so call before visiting.
How can I verify Andrew Ostosh's license?
NPPES lists Michigan license number 430114931, 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 Andrew Ostosh prescribe under Medicare Part D?
In 2024, Andrew Ostosh had 251 Medicare Part D claims for 187 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.