Neil A. Niemi, M.D.
Obstetrics & Gynecology Physician · Marysville, OH
Neil A. Niemi, M.D. is an obstetrics & gynecology physician with a practice address in Marysville, Ohio, and NPI 1992754279, issued on May 6, 2006. Check the license (Ohio 35084849, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Neil A. Niemi
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 35084849 OH
Self-reported in NPPES; status is on the state search - Practice location
- 150 Morey Drive, Marysville, OH 43040
- Phone
- (937) 644-1244
- Enumerated
- May 6, 2006
- Record last updated
- May 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (937) 642-7535
- Medicaid ID
- 2652759 OH
- Medicare enrollment
- Enrolled (PECOS I20060627000407); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 2002
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,572 in Ohio → Look up another NPI →
Also registered at 150 Morey Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Danielle Martter, MDObstetrics & Gynecology Physician1336359645
- Lisa Smithers, CNM, MSNAdvanced Practice Midwife1235102294
Verify Neil A. Niemi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35084849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
147 Medicare Part D claims for 47 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Estradiol42 claims
- Venlafaxine Hcl Er12 claims
- Gemtesa11 claims
- Medroxyprogesterone Acetate11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 95.8 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).
Industry payments in 2024: $81.67
4 payments; by number, the most common kind was food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 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.
Bills Medicare through one group practice
- Maternohio Clinical Associates LLCColumbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neil A. Niemi among 1,572 obstetrics & gynecology physician records in Ohio
Neil A. Niemi, M.D. is one of 1,572 obstetrics & gynecology physician records with a practice address in Ohio. 79% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 47% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2002 · median 2004 among the 1,041 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Ohio
There are 1,572 obstetrics & gynecology physician records in Ohio.
All 1,572 in Ohio → Every provider in Marysville → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Matthew Hazelbaker, MDMarysville, OH 430401235134222
- Danielle Martter, MDMarysville, OH 430401336359645
- Margaret Stroup, DOMarysville, OH 430401174142426
- Rebecca Stilson, MDMount Vernon, OH 430501174522627
- Michael Sullivan, MDMount Vernon, OH 430501548269038
- Tiffany Abreu, M.D.Hilliard, OH 430261093241150
- Sarah Artman, M.D.Hilliard, OH 430261396853305
- Brianne Bowers, DOHilliard, OH 430261710637673
Common questions
What is Neil A. Niemi, M.D.'s NPI number?
Neil A. Niemi, M.D.'s National Provider Identifier (NPI) is 1992754279, issued on May 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Neil A. Niemi, M.D. located?
The NPPES record lists a practice address at 150 Morey Drive, Marysville, OH, 43040. Phone: (937) 644-1244. Providers update this record themselves, so call before visiting.
How can I verify Neil A. Niemi, M.D.'s license?
NPPES lists Ohio license number 35084849, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Neil A. Niemi, M.D. prescribe under Medicare Part D?
In 2024, Neil A. Niemi, M.D. had 147 Medicare Part D claims for 47 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Neil A. Niemi, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.8 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.