THOTTATHIL VISWANATHAN GOPAN (MD) – Endocrinology, Diabetes & Metabolism Physician, NPI 1023148939
Endocrinology, Diabetes & Metabolism Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
180 ENDOCRINOLOGY in IN
Provider Addresses for THOTTATHIL VISWANATHAN GOPAN (MD)
757 45TH AVE
STE 201
MUNSTER, IN 463212911
Phone: (219) 934-2461
Fax: (219) 934-2478
Type: Mailing
761 45TH AVE
STE110
MUNSTER, IN 463212893
Phone: (219) 922-3020
Fax: (219) 922-3023
Type: Location
PO BOX 781076
DETROIT, MI 482781076
Phone: (317) 528-4800
Fax: (317) 865-1479
Type: Mailing
761 45TH ST STE 110
MUNSTER, IN 463212899
Phone: (219) 922-3020
Fax: (219) 922-3023
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 30 Open Payments records for all available years, with a total value of $3,159.
Total Amount is formed as General ($3,159) + Research ($0) + Ownership ($0) = $3,159.
Last reported payment date: 2024-11-19 • Largest payer in this snapshot: Abbott Laboratories ($469).
Total Amount
$3,159
General + Research + Ownership
Payments
30
Total payment records
General Amount
$3,159
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Abbott Laboratories | $469 |
| Horizon Therapeutics plc | $351 |
| Insulet Corporation | $259 |
| Novo Nordisk Inc | $212 |
| Dexcom, Inc. | $172 |
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: 2007-06-04
PECOS data refreshed: 2026-05-27
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 |
|---|---|---|---|---|
| I20070604000726 | I | Endocrinology | 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.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 639 | 333 | $0 |
| 83036 | Hemoglobin a1c level | 248 | 141 | $0 |
| 95251 | Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 159 | 67 | $0 |
| 82962 | Blood glucose (sugar) test performed by hand-held instrument | 145 | 113 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 130 | 94 | $0 |
Insurance plans in this area (ZIP 46321)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ENDOCRINOLOGY | IN | 83036 | Hemoglobin A1C level | 442 | 285 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IN | |
| - | IN | |
| - | IN | |
| - | MI | |
| - | IN | |
| - | IN | |
| Family Practice | IN | |
| - | MI | |
| Internal Medicine | IN | |
| Internal Medicine, Emergency Medicine | MI |
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