MUHAMMAD A. NYAZEE (MD) – Gastroenterology Physician, NPI 1952494932
Gastroenterology Physician
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Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for MUHAMMAD A. NYAZEE (MD)
11155 DUNN RD STE 212E
SAINT LOUIS, MO 631366166
Phone: (314) 837-4200
Fax: (314) 972-0402
Type: Location
6 JUNGERMANN CIR STE 215
SAINT PETERS, MO 633761626
Phone: (636) 928-1231
Fax: (636) 922-2332
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $25.
Total Amount is formed as General ($25) + Research ($0) + Ownership ($0) = $25.
Last reported payment date: 2023-02-08 • Largest payer in this snapshot: IRONWOOD PHARMACEUTICALS, INC ($25).
Total Amount
$25
General + Research + Ownership
Payments
1
Total payment records
General Amount
$25
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-08
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| IRONWOOD PHARMACEUTICALS, INC | $25 |
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: 2010-08-12
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 |
|---|---|---|---|---|
| I20100111000243 | I | Gastroenterology | IL | TBD |
| I20100812001054 | I | Internal Medicine | MO | 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 | 93 | 48 | $0 |
| 99221 | Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 48 | 46 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 35 | 34 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 29 | 18 | $0 |
| 45378 | Diagnostic exam of large bowel using a flexible endoscope | 24 | 23 | $0 |
Insurance plans in this area (ZIP 63136)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | MO | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 22 | 20 |
| GASTROENTEROLOGY | MO | 45378 | Diagnostic examination of large bowel using an endoscope | 35 | 34 |
| GASTROENTEROLOGY | MO | 45385 | Removal of polyps or growths of large bowel using an endoscope | 47 | 47 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MO |
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