John Peter Janson, M.D.
Emergency Medicine Physician · Grand Blanc, MI
John Peter Janson, M.D. is an emergency medicine physician with a practice address in Grand Blanc, Michigan, and NPI 1538570098, issued on May 17, 2014. Check the license (Michigan 4301105581, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- John Peter Janson
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 4301105581 MI
MD2018-0661 NM
Self-reported in NPPES; status is on the state search - Practice location
- 1 Genesys Pkwy, Grand Blanc, MI 48439
- Phone
- (810) 606-5000
- Enumerated
- May 17, 2014
- Record last updated
- Aug 8, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,083 in Michigan → Look up another NPI →
Also registered at 1 Genesys Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Missa Abuzamel, DOPulmonary Disease Physician1689232951
- Mary AdekalePsychologist1457838005
- Ceilidh AhearnInternal Medicine Physician1619814431
- Maruf Ahmed, DOInternal Medicine Physician1407792476
- Muhammad Ahmed, MDFamily Medicine Physician1710800578
- Sana Ahmed, MDFamily Medicine Physician1871974592
Verify John Peter Janson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301105581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average emergency medicine physician in 2024
31 Medicare Part D claims for 24 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 83.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
John Peter Janson among 3,083 emergency medicine physician records in Michigan
John Peter Janson, 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 2014, is newer than 55% of them.
- NPI issued2014 · 55% of these records are older, 41% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- 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).
82 emergency medicine physician records list a practice address in Grand Blanc
They are 82 of the 1,735 NPPES records with a practice address in Grand Blanc, and 3,083 emergency medicine physician records in Michigan.
All 3,083 in Michigan → Every provider in Grand Blanc → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Chapman, D.O.Grand Blanc, MI 484391457557647
- Bradley Chappell, DO, MHAGrand Blanc, MI 484391144426479
- Bryan Eadie, DOGrand Blanc, MI 484391720247299
- Scott Greib, MDGrand Blanc, MI 484391154304855
- Amy KaluzaGrand Blanc, MI 484391437355229
- Kurt Keogh, MDGrand Blanc, MI 484391528041407
- Virginia Labond, MDGrand Blanc, MI 484391962485920
- Ananda Pandurangadu, M.D.Grand Blanc, MI 484391891963641
Common questions
What is John Peter Janson, M.D.'s NPI number?
John Peter Janson, M.D.'s National Provider Identifier (NPI) is 1538570098, issued on May 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is John Peter Janson, M.D. located?
The NPPES record lists a practice address at 1 Genesys Pkwy, Grand Blanc, MI, 48439. Phone: (810) 606-5000. Providers update this record themselves, so call before visiting.
How can I verify John Peter Janson, M.D.'s license?
NPPES lists Michigan license number 4301105581, 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 John Peter Janson, M.D. prescribe under Medicare Part D?
In 2024, John Peter Janson, M.D. had 31 Medicare Part D claims for 24 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is John Peter Janson, M.D.'s MIPS final score?
The 2023 MIPS final score is 83.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.