Doctor profile · Federal record

Dr. Claire Williams, PA

Physician Assistant · Student in an Organized Health Care Education/Training Program · Mason City, IA

  • NPI 1629719737
  • Accepts Medicare
  • 3 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1421 4Th St Sw
Mason City, IA 504012736
(641) 428-2080
Mailing address
18 N Willowgreen CT
Mason City, IA 504011630

Credentials & registration

NPPES · NUCC
NPI registered
April 2022 — 4 yrs on file
Profile last updated
October 18, 2024
Year of graduation
2023 — 3 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629719737. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$337
Transactions
6
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Supernus Pharmaceuticals, INC. 6 $336.60

By nature of payment

Food and Beverage
$337

Frequently asked questions

Auto-generated from federal data
What is Dr. Claire Williams's medical specialty?
Dr. Claire Williams practices Physician Assistant in Mason City, IA.
Where does Dr. Claire Williams practice?
Dr. Claire Williams practices at 1421 4Th St Sw, Mason City, IA 504012736. Office phone: 6414282080.
What is Dr. Claire Williams's NPI?
Dr. Claire Williams's National Provider Identifier (NPI) is 1629719737, issued by NPPES.
Does Dr. Claire Williams accept Medicare assignment?
Yes. Dr. Claire Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.