Timothy Mahon, M.D.
Emergency Medicine Physician · Lansing, MI
Timothy Mahon, M.D. is an emergency medicine physician with a practice address in Lansing, Michigan, and NPI 1194012807, issued on Jul 1, 2011. Check the license (Michigan 4301099350, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Timothy Mahon
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 4301099350 MI
MD.207280 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1215 E Michigan Ave, Lansing, MI 48912
- Phone
- (517) 364-1000
- Enumerated
- Jul 1, 2011
- Record last updated
- Feb 16, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 2188763 LA
- Medicare enrollment
- Enrolled (PECOS I20160302002078); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2011
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1215 E Michigan Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Timothy Mahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301099350Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
47% more Medicare Part D claims than the average emergency medicine physician in 2024
332 Medicare Part D claims for 236 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. 43 claims were for opioids.
Most prescribed
- Cephalexin51 claims
- Hydrocodone-Acetaminophen41 claims
- Amoxicillin-Clavulanate Potass36 claims
- Azithromycin33 claims
- Prednisone23 claims
- Albuterol Sulfate Hfa13 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
- Helen Newberry Joy HospitalNewberry, MI · Critical Access Hospitals
- Mclaren Hospital GroupBay City, 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).
Timothy Mahon among 3,083 emergency medicine physician records in Michigan
Timothy Mahon, 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 2011, is newer than 45% of them.
- NPI issued2011 · 45% of these records are older, 52% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2013 among the 1,931 with a school on file
- Record last updated2016 · 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).
114 emergency medicine physician records list a practice address in Lansing
They are 114 of the 5,276 NPPES records with a practice address in Lansing, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Lansing → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Kathleen Bauer, MDLansing, MI 489121114026101
- David Betten, MDLansing, MI 489121649379736
- Amy Blasen, DOLansing, MI 489121659470755
- Anthony Briningstool, MDLansing, MI 489121215036322
- Michael Clark, MDLansing, MI 489121386745446
- Pamela Coffey, M.D.Lansing, MI 489121124048145
- Vanessa Harkins, DOLansing, MI 489121255347258
- Timothy Hodge, DOLansing, MI 489121215037338
Common questions
What is Timothy Mahon, M.D.'s NPI number?
Timothy Mahon, M.D.'s National Provider Identifier (NPI) is 1194012807, issued on Jul 1, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Mahon, M.D. located?
The NPPES record lists a practice address at 1215 E Michigan Ave, Lansing, MI, 48912. Phone: (517) 364-1000. Providers update this record themselves, so call before visiting.
How can I verify Timothy Mahon, M.D.'s license?
NPPES lists Michigan license number 4301099350, 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 Timothy Mahon, M.D. prescribe under Medicare Part D?
In 2024, Timothy Mahon, M.D. had 332 Medicare Part D claims for 236 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.