Jennifer Chang, MD
Obstetrics & Gynecology Physician · Orland Park, IL
Jennifer Chang, MD is an obstetrics & gynecology physician with a practice address in Orland Park, Illinois, and NPI 1073172508, issued on Jun 9, 2019. Check the license (Illinois 036159746, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jennifer Chang
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 036159746 IL
125.073888 IL
Self-reported in NPPES; status is on the state search - Practice location
- 16011 108TH Ave, Orland Park, IL 60467
- Phone
- (708) 873-2000
- Enumerated
- Jun 9, 2019
- Record last updated
- Oct 14, 2025
- Fax
- (708) 364-0430
- Medicare enrollment
- Enrolled (PECOS I20230906001289); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2019
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 16011 108TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nadine Bokowski, NPWomen's Health Nurse Practitioner1740359785
- Robert Bosack, DDSOral and Maxillofacial Surgery (Dentist)1376550558
- Jessica Dy-Johnson, M.D.Obstetrics & Gynecology Physician1750693966
- Edward Ryan, MDObstetrics & Gynecology Physician1447251053
- Whitney Sigala, M.D.Obstetrics & Gynecology Physician1124373295
- Kara Totonchi, D.O.Obstetrics & Gynecology Physician1366701989
Verify Jennifer Chang 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 036159746Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
73 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 21% of claims.
Most prescribed
- Estradiol16 claims
- Gemtesa11 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.
Industry payments in 2024: $177.44
9 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. 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
- OB-Gyn Health Associates SCOrland Park, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Chang among 2,062 obstetrics & gynecology physician records in Illinois
Jennifer Chang, 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 2019, is newer than 81% of them.
- NPI issued2019 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2006 among the 1,168 with a school on file
- Record last updated2025 · 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).
21 obstetrics & gynecology physician records list a practice address in Orland Park
They are 21 of the 1,925 NPPES records with a practice address in Orland Park, and 2,062 obstetrics & gynecology physician records in Illinois.
All 2,062 in Illinois → Every provider in Orland Park → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- James Bray, MDOrland Park, IL 604671659384378
- Michael Brusca, MDOrland Park, IL 604671881605830
- Jack Doah, D.O.Orland Park, IL 604671881748135
- Jessica Dy-Johnson, M.D.Orland Park, IL 604671750693966
- Sam Flosi, D.O.Orland Park, IL 604671164538161
- Thomas Iannucci, M.D.Orland Park, IL 604671851687453
- Alka Kale, MDOrland Park, IL 604671801894969
- Calvin Mar, MDOrland Park, IL 604671972514925
Common questions
What is Jennifer Chang, MD's NPI number?
Jennifer Chang, MD's National Provider Identifier (NPI) is 1073172508, issued on Jun 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Chang, MD located?
The NPPES record lists a practice address at 16011 108TH Ave, Orland Park, IL, 60467. Phone: (708) 873-2000. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Chang, MD's license?
NPPES lists Illinois license number 036159746, 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 Jennifer Chang, MD prescribe under Medicare Part D?
In 2024, Jennifer Chang, MD had 73 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.