DR. THOMAS MICHAEL MAZZA (M.D.) – Colon & Rectal Surgery Physician, NPI 1962426684
Colon & Rectal Surgery Physician
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NPPES metrics only — not quality of care.
167 COLORECTAL SURGERY (PROCTOLOGY) in PA
Provider Addresses for DR. THOMAS MICHAEL MAZZA (M.D.)
1201 GRAMPIAN BLVD
WILLIAMSPORT, PA 177011900
Phone:
Type: Mailing
740 HIGH ST STE 1003
WILLIAMSPORT, PA 177013102
Phone: (570) 321-3160
Fax: (570) 321-3161
Type: Location
3016 Longtown Commons Dr Ste 210
Columbia, SC 292297863
Phone: (803) 936-3300
Fax: (803) 936-7735
Type: Location
146 E HOSPITAL DR STE 400
WEST COLUMBIA, SC 291694800
Phone: (803) 936-3300
Fax: (803) 936-7735
Type: Location
PO BOX 6069
WEST COLUMBIA, SC 291716069
Phone: (803) 936-3300
Fax: (803) 936-7735
Type: Mailing
2, South 2nd Street, Harrisburg, Dauphin County, Pennsylvania, 17104, United States
HARRISBURG, PA 171041612
Phone:
Type: Mailing
North Front Street, Harrisburg, Dauphin County, Pennsylvania, 17108-9998, United States
HARRISBURG, PA 17110
Phone: (717) 232-4567
Type: Location
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 $145.
Total Amount is formed as General ($145) + Research ($0) + Ownership ($0) = $145.
Last reported payment date: 2023-09-12 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($145).
Total Amount
$145
General + Research + Ownership
Payments
2
Total payment records
General Amount
$145
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-09-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $145 |
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: 2023-03-07
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 |
|---|---|---|---|---|
| I20230307001468 | I | Colorectal Surgery (Proctology) | SC | 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 |
|---|---|---|---|---|
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 63 | 63 | $0 |
| 46600 | Diagnostic exam of anus using an endoscope | 55 | 53 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 15 | 15 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 13 | 13 | $0 |
Insurance plans in this area (ZIP 17701)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | PA | 45385 | Removal of polyps or growths of large bowel using an endoscope | 16 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Interventional Cardiology | SC | |
| Family Practice | NC | |
| Physical Therapist In Private Practice | SC | |
| Certified Registered Nurse Anesthetist (Crna) | SC | |
| Hospitalist, Internal Medicine | SC | |
| E N D O C R I N O L O G Y | MO | |
| General Surgery | SC | |
| Nurse Practitioner | SC | |
| A N E S T H E S I O L O G Y | SC | |
| A N E S T H E S I O L O G Y | NC |
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