William Quirk, MD
Obstetrics & Gynecology Physician · Youngstown, OH
William Quirk, MD is an obstetrics & gynecology physician with a practice address in Youngstown, Ohio, and NPI 1871696674, issued on Sep 7, 2006. Check the license (Ohio 35063544, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- William Quirk
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 35063544 OH
Self-reported in NPPES; status is on the state search - Practice location
- 5533 Mahoning Ave, Youngstown, OH 44515
- Phone
- (330) 793-7966
- Enumerated
- Sep 7, 2006
- Record last updated
- Sep 15, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 2107026 OH
- Medicare enrollment
- Enrolled (PECOS I20040722001417); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 1,572 in Ohio → Look up another NPI →
Also registered at 5533 Mahoning Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Haggerty, MDObstetrics & Gynecology Physician1992808794
Verify William Quirk in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35063544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.7 times the Medicare Part D claims of the average obstetrics & gynecology physician in 2024
616 Medicare Part D claims for 230 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 15 claims were for opioids.
Most prescribed
- Oxybutynin Chloride66 claims
- Fluconazole58 claims
- Alendronate Sodium47 claims
- Estradiol35 claims
- Cephalexin34 claims
- Clotrimazole-Betamethasone30 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): 86.1 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).
Bills Medicare through one group practice
- Northern Ohio Medical Specialists, LLCAustintown, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Quirk among 1,572 obstetrics & gynecology physician records in Ohio
William Quirk, MD 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
- Graduated1989 · median 2004 among the 1,041 with a school on file
- Record last updated2014 · 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 Youngstown → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Michael Haggerty, MDYoungstown, OH 445151992808794
- Jonathan Eucker, M.D.Youngstown, OH 445141417952276
- James Leonelli, MDYoungstown, OH 445141790834190
- Jennifer Baird, MDYoungstown, OH 445121669456505
- David Biats, D.O.Boardman, OH 445121609889427
- Jerome Chelliah, MD, MPHBoardman, OH 445121013371046
- Antoine El-Hayek, M.D.Boardman, OH 445121437125325
- Antonius Hadi, MDBoardman, OH 445121033296942
Common questions
What is William Quirk, MD's NPI number?
William Quirk, MD's National Provider Identifier (NPI) is 1871696674, issued on Sep 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Quirk, MD located?
The NPPES record lists a practice address at 5533 Mahoning Ave, Youngstown, OH, 44515. Phone: (330) 793-7966. Providers update this record themselves, so call before visiting.
How can I verify William Quirk, MD's license?
NPPES lists Ohio license number 35063544, 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 William Quirk, MD prescribe under Medicare Part D?
In 2024, William Quirk, MD had 616 Medicare Part D claims for 230 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is William Quirk, MD's MIPS final score?
The 2023 MIPS final score is 86.1 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.