Maria Teresa Tam, MD
Obstetrics & Gynecology Physician · Chicago, IL
Maria Teresa Tam, MD is an obstetrics & gynecology physician with a practice address in Chicago, Illinois, and NPI 1003843517, issued on Jun 28, 2006. Check the license (Illinois 036093565, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Maria Teresa Tam
- Credential
- MD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 036093565 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2845 N Sheridan RD, Chicago, IL 60657
- Phone
- (773) 904-8641
- Enumerated
- Jun 28, 2006
- Record last updated
- Aug 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (872) 888-1206
- Medicaid ID
- 036093565 IL
- Medicare enrollment
- Enrolled (PECOS I20040924000397); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 2,062 in Illinois → Look up another NPI →
Also registered at 2845 N Sheridan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claudia BarbieriProfessional Counselor1265264113
- Saloumeh Degood, PSYDClinical Psychologist1417252644
- Blythe Dump, PT, DPT, CLTPhysical Therapist1760738470
- Alan Gilman, MDHematology & Oncology Physician1447249834
- Kayla Harlan, LSW, P-CADCSocial Worker1770359291
- Emma Hawkins, MS, LCGCGenetic Counselor (M.S.)1700608569
Verify Maria Teresa Tam 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 036093565Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
54 Medicare Part D claims for 32 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
Most prescribed
- Estradiol16 claims
- Misoprostol15 claims
- Ibuprofen11 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: $62,646.19
74 payments; by number, the most common kind was travel and lodging; the largest payer was Intuitive Surgical, 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.
One hospital affiliation
- Thorek Memorial HospitalChicago, IL · Acute Care Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Maria Teresa Tam among 2,062 obstetrics & gynecology physician records in Illinois
Maria Teresa Tam, 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 fileYes · 57% of these records are
- Graduated1990 · median 2006 among the 1,168 with a school on file
- Record last updated2020 · 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
- Silvia Bicalho, M.D.Chicago, IL 606571093724494
- Annabella Castillo-Juat, M.D.Chicago, IL 606571740290022
- Brenda Darrell, M.D.Chicago, IL 606571336158880
- Melissa Dennis, M.D.Chicago, IL 606571376552984
- Carlos Fernandez, MDChicago, IL 606571326057803
- Abdol Hosseinian, MDChicago, IL 606571811978448
- Teresa Hubka, D.O.Chicago, IL 606571659354140
- Charanjeet Ray, M.D.Chicago, IL 606571114937596
Common questions
What is Maria Teresa Tam, MD's NPI number?
Maria Teresa Tam, MD's National Provider Identifier (NPI) is 1003843517, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Maria Teresa Tam, MD located?
The NPPES record lists a practice address at 2845 N Sheridan RD, Chicago, IL, 60657. Phone: (773) 904-8641. Providers update this record themselves, so call before visiting.
How can I verify Maria Teresa Tam, MD's license?
NPPES lists Illinois license number 036093565, 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 Maria Teresa Tam, MD prescribe under Medicare Part D?
In 2024, Maria Teresa Tam, MD had 54 Medicare Part D claims for 32 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.