Therese M. Oconnor, MD
Obstetrics & Gynecology Physician · Des Plaines, IL
Therese M. Oconnor, MD is an obstetrics & gynecology physician with a practice address in Des Plaines, Illinois, and NPI 1114995800, issued on Mar 9, 2006. Check the license (Illinois 36066503, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Therese M. Oconnor
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 36066503 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9301 Golf RD Ste 101, Des Plaines, IL 60016
- Phone
- (847) 318-9350
- Enumerated
- Mar 9, 2006
- Record last updated
- Dec 20, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (847) 318-2906
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 9301 Golf RD Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Natalia Feldman, M.D.Obstetrics & Gynecology Physician1104454545
- Brian Locker, MDObstetrics & Gynecology Physician1679540868
- Randee Lopata, MDObstetrics & Gynecology Physician1285696518
- Jodi Sklansky, D.O.Obstetrics & Gynecology Physician1548553399
- Julie Snow, M.D.Obstetrics & Gynecology Physician1154348720
- Beth Sum, MDObstetrics & Gynecology Physician1780643734
Verify Therese M. Oconnor 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 36066503Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
51 Medicare Part D claims for 28 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Estradiol16 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.
Therese M. Oconnor among 2,062 obstetrics & gynecology physician records in Illinois
Therese M. Oconnor, MD 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2021 · 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).
Obstetrics & Gynecology Physician providers in Illinois
There are 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Des Plaines → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Harbans Deol, MDDes Plaines, IL 600161851391387
- Vernee Edwards, MDDes Plaines, IL 600161376807867
- Natalia Feldman, M.D.Des Plaines, IL 600161104454545
- Lauren Hensley, MDDes Plaines, IL 600161306282561
- Brian Locker, MDDes Plaines, IL 600161679540868
- Randee Lopata, MDDes Plaines, IL 600161285696518
- Hasumati Patel, M.D.Des Plaines, IL 600161831186105
- Susan Rim, MDDes Plaines, IL 600161487810859
Common questions
What is Therese M. Oconnor, MD's NPI number?
Therese M. Oconnor, MD's National Provider Identifier (NPI) is 1114995800, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Therese M. Oconnor, MD located?
The NPPES record lists a practice address at 9301 Golf RD Ste 101, Des Plaines, IL, 60016. Phone: (847) 318-9350. Providers update this record themselves, so call before visiting.
How can I verify Therese M. Oconnor, MD's license?
NPPES lists Illinois license number 36066503, 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 Therese M. Oconnor, MD prescribe under Medicare Part D?
In 2024, Therese M. Oconnor, MD had 51 Medicare Part D claims for 28 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.