DR. SREENIVAS MANNAM (M.D.) – Gastroenterology Physician, NPI 1629001334
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
649 GASTROENTEROLOGY in MI
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Provider Addresses for DR. SREENIVAS MANNAM (M.D.)
1345, Willowdale Court, Flint Charter Township, Genesee County, Michigan, 48532, United States
FLINT, MI 485324736
Phone: (810) 720-5130
Fax: (810) 720-4661
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 4 Open Payments records for all available years, with a total value of $178.
Total Amount is formed as General ($178) + Research ($0) + Ownership ($0) = $178.
Last reported payment date: 2024-11-13 • Largest payer in this snapshot: Gilead Sciences, Inc. ($101).
Total Amount
$178
General + Research + Ownership
Payments
4
Total payment records
General Amount
$178
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-13
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Gilead Sciences, Inc. | $101 |
| GENZYME CORPORATION | $30 |
| ABBVIE INC. | $29 |
| Janssen Biotech, Inc. | $17 |
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: 2004-10-08
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 |
|---|---|---|---|---|
| I20041008000051 | I | Gastroenterology | MI | 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 |
|---|---|---|---|---|
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 87 | 86 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 70 | 70 | $0 |
| 43235 | Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 70 | 69 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 64 | 63 | $0 |
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | 42 | 42 | $0 |
Insurance plans in this area (ZIP 48532)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | MI | 45385 | Removal of polyps or growths of large bowel using an endoscope | 221 | 221 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Family Practice | MI | |
| Nurse Practitioner | MI | |
| Internal Medicine | MI | |
| Nurse Practitioner | MI | |
| Nurse Practitioner | MI | |
| - | MI | |
| - | MI | |
| Interventional Cardiology, Cardiac Electrophysiology | MI | |
| - | MI | |
| Nurse Practitioner | MI |
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