Provider Profile
Sierra Schaller-Mahl, CRNP
Unclaimed ProfileAbout Sierra Schaller-Mahl
Sierra Schaller-Mahl, CRNP is a nurse practitioner practicing in Johnstown, PA. Sierra is also listed as specializing in family medicine and nurse practitioner — primary care. Medicare claims data shows Sierra provided 235 services to 194 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, advance care planning, first 30 minutes, and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. This provider record is associated with NPI 1649927005.
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
- (814) 240-3432
- Email not available
Practice Locations
100 HOSTETLER RD
Johnstown, PA 15904
Procedures Most Often Billed to Medicare
235 services · 194 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
68 | More often than most peers in Nurse Practitioner |
| Advance care planning, first 30 minutes | Office visit | 99497 |
52 | More often than most peers in Nurse Practitioner |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
36 | More often than most peers in Nurse Practitioner |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
32 | Less often than most peers in Nurse Practitioner |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
32 | As often as other peers in Nurse Practitioner |
| Advance care planning, each additional 30 minutes | Office visit | 99498 |
15 | Too few peers to compare |
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.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other nurse practitioners in Johnstown 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2021 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Sierra Schaller-Mahl specialize in?
Sierra Schaller-Mahl is a nurse practitioner in Johnstown, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Sierra Schaller-Mahl located?
Sierra Schaller-Mahl is listed at 100 Hostetler Rd, Johnstown, PA 15904. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Sierra Schaller-Mahl's phone number?
The number on file is (814) 240-3432. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Sierra Schaller-Mahl?
Sierra Schaller-Mahl's National Provider Identifier is 1649927005. 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 Sierra Schaller-Mahl train?
Sierra Schaller-Mahl attended Other, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Sierra Schaller-Mahl have?
Sierra Schaller-Mahl has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
What does Sierra Schaller-Mahl do most often?
According to Medicare billing data, Sierra Schaller-Mahl the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Sierra Schaller-Mahl's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sierra Schaller-Mahl. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.