Provider Profile
Claire A. Mastel, PA-C
Unclaimed ProfileAbout Claire Mastel
Claire A. Mastel, PA-C is a physician assistant practicing in Billings, MT. According to Medicare claims data, Claire cared for 27 Medicare patients across 84 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and psychotherapy with evaluation and management visit, 30 minutes. This provider record is associated with NPI 1871178202.
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
- (406) 294-5225
- Email not available
Practice Locations
820 DIVISION ST
Billings, MT 59101
27 N 27th St Ste 21E
Billings, MT 59101
Procedures Most Often Billed to Medicare
84 services · 27 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
31 | Less 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 |
53 | As often as other 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 1
Same specialty, same street address — most likely the same department or group.
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.
Other physician assistants in Billings 8
Same specialty, same city.
More connections — 20 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2020 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 4
Providers in MT who bill this service to Medicare most often.
Common questions
What does Claire A. Mastel specialize in?
Claire A. Mastel is a physician assistant in Billings, MT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Claire A. Mastel located?
Claire A. Mastel is listed at 820 Division St, Billings, MT 59101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Claire A. Mastel's phone number?
The number on file is (406) 294-5225. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Claire A. Mastel's NPI number?
Claire A. Mastel's National Provider Identifier is 1871178202. 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 A. Mastel train?
Claire A. Mastel attended Other, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How long has Claire A. Mastel been practicing?
Claire A. Mastel has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
What does Claire A. Mastel do most often?
According to Medicare billing data, Claire A. Mastel provides treatments such as psychotherapy with evaluation and management visit, 30 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Claire A. Mastel confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Claire A. Mastel. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.