Provider Profile
Caroline S. Onstott, PA-C
Unclaimed ProfileAbout Caroline Onstott
Listed in the NPI registry as a physician assistant, Caroline S. Onstott, PA-C practices in Phoenix, AZ. Caroline is also listed as specializing in physician assistant — surgical. Medicare claims data shows Caroline provided 61 services to 44 patients. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and hospital discharge day management, 30 minutes or less.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (480) 301-8000
- Email not available
Practice Locations
5777 E MAYO BLVD
Phoenix, AZ 85054
Procedures Most Often Billed to Medicare
61 services · 44 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
27 | As often as other peers in Physician Assistant |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
21 | |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
13 |
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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 22 related providers in 3 groups
Other physician assistants in Phoenix 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2004 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Caroline S. Onstott?
Caroline S. Onstott is a physician assistant in Phoenix, AZ. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Caroline S. Onstott's address?
Caroline S. Onstott is listed at 5777 E Mayo Blvd, Phoenix, AZ 85054. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Caroline S. Onstott?
The number on file is (480) 301-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Caroline S. Onstott?
Caroline S. Onstott's National Provider Identifier is 1689635393. 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 Caroline S. Onstott train?
Caroline S. Onstott attended Other, graduating in 2004. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Caroline S. Onstott have?
Caroline S. Onstott has 22 years experience. Calculated from a graduation year of 2004, reported in the CMS National Downloadable File.
CMS public data
What procedures does Caroline S. Onstott perform?
According to Medicare billing data, Caroline S. Onstott 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 Caroline S. Onstott's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Caroline S. Onstott. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.