Jonathan Carl Tiemann, DO
Emergency Medicine Physician · Saint Joseph, MI
Jonathan Carl Tiemann, DO is an emergency medicine physician with a practice address in Saint Joseph, Michigan, and NPI 1437732708, issued on May 4, 2021. Check the license on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Jonathan Carl Tiemann
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 02007369A IN
036.170401 IL
81595-21 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1234 Napier Ave, Saint Joseph, MI 49085
- Phone
- (269) 983-8300
- Enumerated
- May 4, 2021
- Record last updated
- Apr 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20241025000455); accepts Medicare assignment
- Medical or professional school
- Midwestern University, Chicago College Of Osteopathic Med, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1234 Napier Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erik Achramowicz, D.O.Emergency Medicine Physician1598027245
- Scott Achramowicz, PAPhysician Assistant1295244630
- Joseph Aderemi, MDPsychiatry Physician1831726546
- Kristina Aleksoniene, MDInfectious Disease Physician1659545002
- Sydney Alexander, DOFamily Medicine Physician1144952698
- Robert Allen, MDCritical Care Medicine (Internal Medicine) Physician1073540647
Verify Jonathan Carl Tiemann in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% more Medicare Part D claims than the average emergency medicine physician in 2024
360 Medicare Part D claims for 180 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Cephalexin27 claims
- Hydrocodone-Acetaminophen23 claims
- Prednisone22 claims
- Atorvastatin Calcium19 claims
- Naproxen13 claims
- Amlodipine Besylate12 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 3 group practices
- Mercy Health System CorporationJanesville, WI
- Rockford Health PhysiciansRockford, IL
- Swea Fort SCFort Atkinson, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathan Carl Tiemann among 3,083 emergency medicine physician records in Michigan
Jonathan Carl Tiemann, DO 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 2021, is newer than 82% of them.
- NPI issued2021 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2021 · median 2013 among the 1,931 with a school on file
- Record last updated2026 · 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).
50 emergency medicine physician records list a practice address in Saint Joseph
They are 50 of the 1,038 NPPES records with a practice address in Saint Joseph, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Saint Joseph → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jonathan Beyer, D.O.Saint Joseph, MI 490851811121593
- Dan Chaffee, M.D.Saint Joseph, MI 490851528003308
- Michael Clark, DOSaint Joseph, MI 490851073549804
- Steven Culley, DOSaint Joseph, MI 490851316237795
- Jessica Hamill Schindler, D.O.Saint Joseph, MI 490851023305794
- Judd Herring, DO, MPT, COMTSaint Joseph, MI 490851982614608
- Matthew Hysell, M.D.Saint Joseph, MI 490851922198704
- Michelino Mancini, D.O.St Joseph, MI 490851467407981
Common questions
What is Jonathan Carl Tiemann, DO's NPI number?
Jonathan Carl Tiemann, DO's National Provider Identifier (NPI) is 1437732708, issued on May 4, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Jonathan Carl Tiemann, DO located?
The NPPES record lists a practice address at 1234 Napier Ave, Saint Joseph, MI, 49085. Phone: (269) 983-8300. Providers update this record themselves, so call before visiting.
How can I verify Jonathan Carl Tiemann, DO's license?
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 Jonathan Carl Tiemann, DO prescribe under Medicare Part D?
In 2024, Jonathan Carl Tiemann, DO had 360 Medicare Part D claims for 180 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.