ANN-MARIE WILLIAMS (PA-C) – Surgical Physician Assistant, NPI 1164549341
Surgical Physician Assistant
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,243 PHYSICIAN ASSISTANT in CT
Provider Addresses for ANN-MARIE WILLIAMS (PA-C)
600 WASHINGTON AVE APT E6
NORTH HAVEN, CT 064731147
Phone: (917) 855-4557
Type: Mailing
540 SAYBROOK RD
SUITE 210
MIDDLETOWN, CT 064574711
Phone: (860) 740-2280
Fax: (860) 740-2284
Type: Location
595 STRAITS TPKE
WATERTOWN, CT 067953393
Phone: (844) 482-7285
Fax: (203) 502-2615
Type: Location
2800 MAIN ST
BRIDGEPORT, CT 066064292
Phone: (203) 576-6000
Type: Mailing
2800 Main St
Bridgeport, CT 066064292
Phone: (203) 576-6000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $299.
Total Amount is formed as General ($299) + Research ($0) + Ownership ($0) = $299.
Last reported payment date: 2023-10-04 • Largest payer in this snapshot: Boston Scientific Corporation ($203).
Total Amount
$299
General + Research + Ownership
Payments
8
Total payment records
General Amount
$299
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-10-04
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Boston Scientific Corporation | $203 |
| Endologix LLC | $35 |
| Medtronic, Inc. | $22 |
| Tactile Systems Technology Inc | $19 |
| Janssen Pharmaceuticals, Inc | $19 |
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: 2008-04-29
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 |
|---|---|---|---|---|
| I20080429000093 | I | Physician Assistant | CT | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 249 | 221 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 112 | 87 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 41 | 41 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $0 |
Insurance plans in this area (ZIP 06473)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Vascular Surgery | NY | |
| Physician Assistant | CT | |
| Physician Assistant | CT | |
| Vascular Surgery | CT | |
| Vascular Surgery | CT | |
| Vascular Surgery | RI | |
| Vascular Surgery | CT | |
| Vascular Surgery | CT | |
| Vascular Surgery | CT | |
| Physician Assistant | CT |
Reviews
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