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Edit this profileAt a glance
- 1421 4Th St Sw, Mason City, IA 50401
About Claire Williams
Listed in the NPI registry as a physician assistant, Claire Williams, PA practices in Mason City, IA. Claire is also listed as specializing in student in an organized health care education program. Medicare claims data shows Claire provided 4,099 services to 2,426 patients. The services billed most often include destruction of precancer skin growth, 2-14 growths, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and destruction of precancer skin growth, 1 growth. NPI 1629719737 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (641) 428-2080
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
1421 4TH ST SW
Mason City, IA 50401
Procedures Most Often Billed to Medicare
4,099 services · 2,426 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
1,816 | More often than most peers in Physician Assistant |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
466 | More often than most peers in Physician Assistant |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
276 | More often than most peers in Physician Assistant |
| Biopsy of related skin growth, each additional growth | Procedure | 11103 |
144 | More often than most peers in Physician Assistant |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
111 | As often as other peers in Physician Assistant |
| Destruction of precancer skin growth, 15 or more growths | Procedure | 17004 |
95 | More often than most peers in Physician Assistant |
| Punch biopsy, first skin growth | Procedure | 11104 |
34 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
725 | More than most peers in Physician Assistant |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
179 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
147 | More often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 29 related providers in 4 groups
Other physician assistants in Mason City 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2023 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 6
Providers in IA who bill this service to Medicare most often.
Common questions
What does Claire Williams specialize in?
Claire Williams is a physician assistant in Mason City, IA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Claire Williams located?
Claire Williams is listed at 1421 4Th St Sw, Mason City, IA 50401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Claire Williams's phone number?
The number on file is (641) 428-2080. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Claire Williams?
Claire Williams's National Provider Identifier is 1629719737. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Claire Williams train?
Claire Williams attended Other, graduating in 2023. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Claire Williams have?
Claire Williams has 3 years experience. Calculated from a graduation year of 2023, reported in the CMS National Downloadable File.
CMS public data
What does Claire Williams do most often?
According to Medicare billing data, Claire Williams performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and biopsy of related skin growth, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Claire Williams's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Claire Williams. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.