DR. GHANSHYAM S. THAKKAR (M.D.) – Obstetrics & Gynecology Physician, NPI 1235196007
Obstetrics & Gynecology Physician
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NPPES metrics only — not quality of care.
Provider Addresses for DR. GHANSHYAM S. THAKKAR (M.D.)
701 N 1st ST
Springfield, IL 627810001
Phone: (217) 788-3000
Type: Location
4321 Fir St
East Chicago, IN 463123049
Phone: (219) 392-7016
Fax: (219) 397-6904
Type: Location
8558 BROADWAY
MERRILLVILLE, IN 464107032
Phone: (219) 392-7084
Fax: (219) 703-6854
Type: Mailing
1044 N FRANCISCO AVE
CHICAGO, IL 606222743
Phone: (773) 292-8200
Fax: (773) 292-8237
Type: Location
29373 NETWORK PL
CHICAGO, IL 606731293
Phone: (847) 390-5900
Type: Mailing
4025 N WESTERN AVE
CHICAGO, IL 606183726
Phone: (773) 296-3300
Type: Location
Swedish Covenant Professional Plaza, 2740-2760, West Foster Avenue, Bowmanville, Lincoln Square, Chicago, Jefferson Township, Cook County, Illinois, 60659, United States
SUITE 203
CHICAGO, IL 606253500
Phone: (773) 989-3950
Fax: (773) 506-3884
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $281.
Total Amount is formed as General ($281) + Research ($0) + Ownership ($0) = $281.
Last reported payment date: 2024-05-23 • Largest payer in this snapshot: GENZYME CORPORATION ($281).
Total Amount
$281
General + Research + Ownership
Payments
2
Total payment records
General Amount
$281
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GENZYME CORPORATION | $281 |
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: 2023-06-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20081121000549 | I | Obstetrics/Gynecology | IL | TBD |
| I20230602001401 | I | Obstetrics/Gynecology | IN | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 62781)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Nephrology, Internal Medicine | IL | |
| A N E S T H E S I O L O G Y | IL | |
| - | MN | |
| - | IL | |
| - | IL | |
| Rheumatology, Internal Medicine | IL | |
| - | IL | |
| Internal Medicine | IL | |
| P S Y C H I A T R Y | IL | |
| - | IL |
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