Jennifer Cai, M.D.
Gastroenterology Physician · Chicago, IL
Jennifer Cai, M.D. is a gastroenterology physician with a practice address in Chicago, Illinois, and NPI 1972833796, issued on Dec 29, 2009. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jennifer Cai
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 262657 MA
Self-reported in NPPES; status is on the state search - Practice location
- 259 E Erie St FL 16, Chicago, IL 60611
- Phone
- (312) 695-5620
- Enumerated
- Dec 29, 2009
- Record last updated
- Nov 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (312) 695-7095
- Medicare enrollment
- Enrolled (PECOS I20150722003364); accepts Medicare assignment
- Medical or professional school
- Johns Hopkins University School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 259 E Erie St FL 16
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy Arbus, RDRegistered Dietitian1144969668
- Alexandra Baumann, D.O.Gastroenterology Physician1124380332
- Chelsea Breed, PA-CPhysician Assistant1861124059
- Jennifer Carvajal, APNFamily Nurse Practitioner1558910265
- Hazel Dhates Domingo, PA-CPhysician Assistant1508253410
- Richard Green, MDGastroenterology Physician1770511404
Verify Jennifer Cai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average gastroenterology physician in 2024
165 Medicare Part D claims for 108 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Gavilyte-G44 claims
- Omeprazole27 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.
Bills Medicare through one group practice
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jennifer Cai among 887 gastroenterology physician records in Illinois
Jennifer Cai, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 61% of them.
- NPI issued2009 · 61% of these records are older, 37% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2003 among the 643 with a school on file
- Record last updated2020 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Illinois
There are 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Chicago → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Greg Cohen, M.D.Chicago, IL 606111669447348
- Maria Ferreira, MDChicago, IL 606111194755421
- Robin Fintel, M.D.Chicago, IL 606111023083250
- Steven Flamm, MDChicago, IL 606111912937244
- Melvin Goldstein, M.D.Chicago, IL 606111376531400
- Nirmala Gonsalves, MDChicago, IL 606111326038712
- Richard Green, MDChicago, IL 606111770511404
- Joseph Karacic, MDChicago, IL 606111992798417
Common questions
What is Jennifer Cai, M.D.'s NPI number?
Jennifer Cai, M.D.'s National Provider Identifier (NPI) is 1972833796, issued on Dec 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Jennifer Cai, M.D. located?
The NPPES record lists a practice address at 259 E Erie St FL 16, Chicago, IL, 60611. Phone: (312) 695-5620. Providers update this record themselves, so call before visiting.
How can I verify Jennifer Cai, M.D.'s license?
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 Cai, M.D. prescribe under Medicare Part D?
In 2024, Jennifer Cai, M.D. had 165 Medicare Part D claims for 108 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.