MARIA TERESA TAM (MD) – Obstetrics & Gynecology Physician, NPI 1003843517
Obstetrics & Gynecology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,934 OBSTETRICS/GYNECOLOGY in IL
Provider Addresses for MARIA TERESA TAM (MD)
2800 N Sheridan Rd
Suite 205N
Chicago, IL 606576156
Phone: (773) 904-8641
Fax: (872) 888-1206
Type: Location
4250 Dempster St
Skokie, IL 600762008
Phone: (733) 496-4532
Fax: (872) 888-1206
Type: Location
2845, North Sheridan Road, Lake View, Lakeview, Chicago, Lake View Township, Cook County, Illinois, 60657, United States
SUITE 902
CHICAGO, IL 606577227
Phone: (773) 904-8641
Fax: (872) 888-1206
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 179 Open Payments records for all available years, with a total value of $138,380.
Total Amount is formed as General ($138,380) + Research ($0) + Ownership ($0) = $138,380.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($88,031).
Total Amount
$138,380
General + Research + Ownership
Payments
179
Total payment records
General Amount
$138,380
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $88,031 |
| Medtronic, Inc. | $43,668 |
| Organon LLC | $5,794 |
| ABBVIE INC. | $238 |
| Gynesonics, Inc. | $216 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2004-09-24
PECOS data refreshed: 2026-06-15
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20040924000397 | I | Obstetrics/Gynecology | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 94 | 58 | $0 |
| 57160 | Fitting and insertion of vaginal support device | 34 | 12 | $0 |
| 57150 | Irrigation of vagina and/or application of drug to treat infection | 34 | 12 | $0 |
| J1885 | Injection, ketorolac tromethamine, per 15 mg | 28 | 14 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 22 | 20 | $0 |
Insurance plans in this area (ZIP 60657)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| U R O L O G Y | IL | |
| Nurse Practitioner | IL | |
| Internal Medicine | IL | |
| Family Practice | IL | |
| O P H T H A L M O L O G Y | IL | |
| O P H T H A L M O L O G Y | IL | |
| P S Y C H I A T R Y | IL | |
| O B S T E T R I C S/ G Y N E C O L O G Y | IL | |
| Family Practice | IL | |
| General Surgery | OH |
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