Michael Maser, DO
Obstetrics & Gynecology Physician · Haslett, MI
Michael Maser, DO is an obstetrics & gynecology physician with a practice address in Haslett, Michigan, and NPI 1215915350, issued on Jan 9, 2006. Check the license (Michigan 5101010437, as entered in NPPES) on the Michigan Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Michael Maser
- Credential
- DO
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 5101010437 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1650 Haslett RD, Haslett, MI 48840
- Phone
- (517) 339-3200
- Enumerated
- Jan 9, 2006
- Entity
- Type 1 · individual
Also registered at 1650 Haslett RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cheryl Elfring, DOFamily Medicine Physician1679574107
- Emily Henning, D.O.Student in an Organized Health Care Education/Training Program1205229176
- Barbara Merrill, DOFamily Medicine Physician1841244548
- Jacqueline Mirate, D.O.Obstetrics & Gynecology Physician1316172992
- Dominique Phelps, CNMRegistered Nurse1649983990
- Gregory Shannon, MDEmergency Medicine Physician1336240936
Verify Michael Maser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine
Search for license 5101010437Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
82% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
34 Medicare Part D claims for 11 beneficiaries, against an average of 188 among the 27,363 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of 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.
Industry payments in 2024: $108.76
1 payment, mostly food and beverage; the largest payer was Minerva Surgical, Inc. The 20,757 providers of this specialty with any payment received $1,147.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
5 obstetrics & gynecology physician records list a Haslett practice address
They are 5 of the 87 NPPES records with a Haslett practice address, and 1,735 obstetrics & gynecology physician records in Michigan.
All 5 in Haslett → All 1,735 in Michigan → Every provider in Haslett →
Other obstetrics & gynecology physician records in Michigan
- Bryan Aaron, MDAnn Arbor, MI1578307724
- Mushtak Abbou, MDRoyal Oak, MI1093796922
- Youstina Abdallah, MDGrand Rapids, MI1679325062
- Adib Abdelrahman, D.O.Pontiac, MI1679889406
- Anan Abdelrahman, MDPontiac, MI1760472740
- Charlene Abernethy, DOWilliamsburg, MI1447305016
- Melinda Abernethy, M.D.Kalamazoo, MI1427254226
- Andrea Abessinio, D.O.Saint Clair Shores, MI1144237926
- Carmela Abessinio, D.O.Grosse Pointe, MI1174661763
- Joelle Abood, M.D.Troy, MI1063724813
Common questions
What is Michael Maser, DO's NPI number?
Michael Maser, DO's National Provider Identifier (NPI) is 1215915350, issued on Jan 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael Maser, DO located?
The NPPES record lists a practice address at 1650 Haslett RD, Haslett, MI, 48840. Phone: (517) 339-3200. Providers update this record themselves, so call before visiting.
How can I verify Michael Maser, DO's license?
NPPES lists Michigan license number 5101010437, as entered by the provider. Search the Michigan Board of Medicine at https://www.michigan.gov/lara/bureau-list/bpl/health/hp-lic-health-prof/medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Maser, DO prescribe under Medicare Part D?
In 2024, Michael Maser, DO had 34 Medicare Part D claims for 11 beneficiaries; the average among obstetrics & gynecology physician prescribers was 188. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.