Mary Piekos
Obstetrics & Gynecology Physician · Park Ridge, IL
Mary Piekos is an obstetrics & gynecology physician with a practice address in Park Ridge, Illinois, and NPI 1851960199, issued on Jun 22, 2021. Check the license (Illinois 125.079390, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mary Piekos
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 125.079390 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1875 Dempster St Ste 330, Park Ridge, IL 60068
- Phone
- (847) 655-8530
- Enumerated
- Jun 22, 2021
- Record last updated
- Jun 17, 2022
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 1875 Dempster St Ste 330
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Aikaterina Assimacopoulos, MDObstetrics & Gynecology Physician1629606462
- Olivia Garcia, DOObstetrics & Gynecology Physician1063152247
- Paoula Gueorguieva, MDObstetrics & Gynecology Physician1699303016
- Rebecca Hendricks, DOObstetrics & Gynecology Physician1750775227
- Janet LeeObstetrics & Gynecology Physician1447990510
- Cuilan Li, MDObstetrics & Gynecology Physician1063154722
Verify Mary Piekos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125.079390Check 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
30 Medicare Part D claims for 20 beneficiaries, against an average of 165 among the 28,733 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.
Industry payments in 2024: $73.31
4 payments; by number, the most common kind was food and beverage; the largest payer was Organon 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.
Mary Piekos among 2,062 obstetrics & gynecology physician records in Illinois
Mary Piekos is one of 2,062 obstetrics & gynecology physician records with a practice address in Illinois. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 88% of them.
- NPI issued2021 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 51% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
56 obstetrics & gynecology physician records list a practice address in Park Ridge
They are 56 of the 2,577 NPPES records with a practice address in Park Ridge, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Park Ridge → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Maura Brennan, M.D.Park Ridge, IL 600681194774570
- Joseph Capezio, M.D.Park Ridge, IL 600681184641763
- Maureen Carson, M.D.Park Ridge, IL 600681134126154
- Jose Galvez, MDPark Ridge, IL 600681487652129
- Isabel Gomez, MDPark Ridge, IL 600681063449775
- Fred Grabiner, M.D.Park Ridge, IL 600681962487496
- Robert Koss, M.D.Park Ridge, IL 600681821078759
- Ann Labarge, M.D.Park Ridge, IL 600681609851146
Common questions
What is Mary Piekos's NPI number?
Mary Piekos's National Provider Identifier (NPI) is 1851960199, issued on Jun 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mary Piekos located?
The NPPES record lists a practice address at 1875 Dempster St Ste 330, Park Ridge, IL, 60068. Phone: (847) 655-8530. Providers update this record themselves, so call before visiting.
How can I verify Mary Piekos's license?
NPPES lists Illinois license number 125.079390, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mary Piekos prescribe under Medicare Part D?
In 2024, Mary Piekos had 30 Medicare Part D claims for 20 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.