Ian Greg Jasenof, M.D.
Obstetrics & Gynecology Physician · Chicago, IL
Ian Greg Jasenof, M.D. is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1578509428, issued on Jun 21, 2006. Check the license (Illinois 036083005, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ian Greg Jasenof
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036083005 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1220 S Wood St, Chicago, IL 60608
- Phone
- (312) 413-1453
- Enumerated
- Jun 21, 2006
- Record last updated
- Oct 30, 2023
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 1220 S Wood St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tracy AbrahamAdvanced Practice Midwife1023191269
- Emelia Arquilla, D.O.Family Medicine Physician1639532633
- Taylor Charest, MDFamily Medicine Physician1114421898
- Jennifer Colella, APNFamily Nurse Practitioner1659700060
- Allegra ConnorsPsychiatric/Mental Health Nurse Practitioner1295231397
- John Cotoia, MDFamily Medicine Physician1639871205
Verify Ian Greg Jasenof 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 036083005Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
17 Medicare Part D claims, 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.
Ian Greg Jasenof among 2,062 obstetrics & gynecology physician records in Illinois
Ian Greg Jasenof, M.D. 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 updated2023 · 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).
700 obstetrics & gynecology physician records list a practice address in Chicago
They are 700 of the 63,379 NPPES records with a practice address in Chicago, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Chicago → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Karla Clark, MDChicago, IL 606081598706699
- Marlene Green, M.D.Chicago, IL 606081447333166
- Theodore Jarrett, M.D.Chicago, IL 606081356435838
- Narendra Karmali, M.D.Chicago, IL 606081962504027
- David Michael, MDChicago, IL 606081457434144
- Patrick Michel, M.D.Chicago, IL 606081487639514
- Sylvia Moscoso, M.D.Chicago, IL 606081689649105
- James Nunn, MDChicago, IL 606081295748242
Common questions
What is Ian Greg Jasenof, M.D.'s NPI number?
Ian Greg Jasenof, M.D.'s National Provider Identifier (NPI) is 1578509428, issued on Jun 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ian Greg Jasenof, M.D. located?
The NPPES record lists a practice address at 1220 S Wood St, Chicago, IL, 60608. Phone: (312) 413-1453. Providers update this record themselves, so call before visiting.
How can I verify Ian Greg Jasenof, M.D.'s license?
NPPES lists Illinois license number 036083005, 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 Ian Greg Jasenof, M.D. prescribe under Medicare Part D?
In 2024, Ian Greg Jasenof, M.D. had 17 Medicare Part D claims; 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.