MICHAEL A WILLIAMS (APRN) – Family Nurse Practitioner, NPI 1134667355
Family Nurse Practitioner
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for MICHAEL A WILLIAMS (APRN)
400, Columbus Avenue, Hill, New Haven, New Haven County, Connecticut, 06519, United States
NEW HAVEN, CT 065191233
Phone: (203) 503-3174
Fax: (203) 503-3183
Type: Mailing
285, Main Street, West Haven, New Haven County, Connecticut, 06516, United States
WEST HAVEN, CT 065167307
Phone: (203) 503-3400
Fax: (203) 931-3759
Type: Location
4534 W GATE BLVD STE 106
AUSTIN, TX 787451420
Phone: (512) 840-1273
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 37 Open Payments records for all available years, with a total value of $1,626.
Total Amount is formed as General ($1,626) + Research ($0) + Ownership ($0) = $1,626.
Last reported payment date: 2024-02-07 • Largest payer in this snapshot: Gilead Sciences, Inc. ($1,049).
Total Amount
$1,626
General + Research + Ownership
Payments
37
Total payment records
General Amount
$1,626
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Gilead Sciences, Inc. | $1,049 |
| ViiV Healthcare Company | $245 |
| Abbott Laboratories | $117 |
| Kyowa Kirin, Inc. | $115 |
| ABBVIE INC. | $99 |
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: 2024-01-24
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 |
|---|---|---|---|---|
| I20240124000767 | I | Nurse Practitioner | TX | 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.
No Medicare fee-for-service utilization data available for this provider in our database.
Insurance plans in this area (ZIP 06519)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CT | |
| U R O L O G Y | CT | |
| - | CT | |
| Clinical Social Worker | CT | |
| - | CT | |
| - | CT | |
| Nurse Practitioner | CT | |
| Physician Assistant | CT | |
| Nurse Practitioner | CT | |
| O B S T E T R I C S/ G Y N E C O L O G Y | NJ |
Reviews
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