Provider Profile
Catherine Gregg, CRNP
Unclaimed ProfileAbout Catherine Gregg
Catherine Gregg, CRNP is a nurse practitioner based in Upper St Clair, PA. According to Medicare claims data, Catherine cared for 347 Medicare patients across 514 services. The services billed most often include removal of impacted ear wax, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and exam of ear using a microscope.
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
- (412) 595-7681
- Email not available
Practice Locations
2589 WASHINGTON RD
Upper St Clair, PA 15241
Procedures Most Often Billed to Medicare
514 services · 347 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of impacted ear wax | Procedure | 69210 |
373 | More than most peers in Nurse Practitioner |
| Biopsy or removal of nasal polyp or tissue using an endoscope | Procedure | 31237 |
17 | Too few peers to compare |
| Exam of ear using a microscope | Treatment | 92504 |
20 | Less often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
91 | More often than most peers in Nurse Practitioner |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
13 | Less often than most peers in Nurse Practitioner |
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.
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.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Other 8
Providers who graduated from the same medical school in the same year.
More connections — 8 related providers in 1 group
Also performs Removal of impacted ear wax 8
Providers in PA who bill this service to Medicare most often.
Common questions
What kind of doctor is Catherine Gregg?
Catherine Gregg is a nurse practitioner in Upper St Clair, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Catherine Gregg's address?
Catherine Gregg is listed at 2589 Washington Rd, Upper St Clair, PA 15241. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Catherine Gregg?
The number on file is (412) 595-7681. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Catherine Gregg's NPI number?
Catherine Gregg's National Provider Identifier is 1043958374. 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 Catherine Gregg train?
Catherine Gregg attended Other, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Catherine Gregg been practicing?
Catherine Gregg has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Catherine Gregg perform?
According to Medicare billing data, Catherine Gregg performs procedures including removal of impacted ear wax and biopsy or removal of nasal polyp or tissue using an endoscope; provides treatments such as exam of ear using a microscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Catherine Gregg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Catherine Gregg. 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.