Kirsten Guenther, M.D.
Emergency Medicine Physician · Saginaw, MI
Kirsten Guenther, M.D. is an emergency medicine physician with a practice address in Saginaw, Michigan, and NPI 1861506156, issued on Aug 17, 2006. Check the license (Michigan 4301074740, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Kirsten Guenther
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 4301074740 MI
Self-reported in NPPES; status is on the state search - Practice location
- 900 Cooper, Saginaw, MI 48602
- Phone
- (989) 583-6521
- Enumerated
- Aug 17, 2006
- Record last updated
- Mar 26, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (989) 583-4134
- Medicaid ID
- 4694483 MI
- Medicare enrollment
- Enrolled (PECOS I20041216000847); accepts Medicare assignment
- Medical or professional school
- Medical College Of Ohio, 1999
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 900 Cooper
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew Bazakis, M.D.Emergency Medicine Physician1114914603
- Matthew Deibel, MDEmergency Medicine Physician1427019652
- Risty Kalivas, D.O.Emergency Medicine Physician1851405088
- Kevin Tishkowski, D.O.Emergency Medicine Physician1336253541
- Steven Vance, M.D.Emergency Medicine Physician1295849305
- Mary Wagner, M.D.Emergency Medicine Physician1073627188
Verify Kirsten Guenther in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301074740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average emergency medicine physician in 2024
96 Medicare Part D claims for 74 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen11 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.
Bills Medicare through one group practice
- Covenant Medical Center IncSaginaw, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kirsten Guenther among 3,083 emergency medicine physician records in Michigan
Kirsten Guenther, M.D. 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 77% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1999 · median 2013 among the 1,931 with a school on file
- Record last updated2021 · 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
- Risty Kalivas, D.O.Saginaw, MI 486021851405088
Common questions
What is Kirsten Guenther, M.D.'s NPI number?
Kirsten Guenther, M.D.'s National Provider Identifier (NPI) is 1861506156, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Kirsten Guenther, M.D. located?
The NPPES record lists a practice address at 900 Cooper, Saginaw, MI, 48602. Phone: (989) 583-6521. Providers update this record themselves, so call before visiting.
How can I verify Kirsten Guenther, M.D.'s license?
NPPES lists Michigan license number 4301074740, 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 Kirsten Guenther, M.D. prescribe under Medicare Part D?
In 2024, Kirsten Guenther, M.D. had 96 Medicare Part D claims for 74 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.