Claire Gregson, RN
NPI 1154943991 · Family Nurse Practitioner · Maryville, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claire Gregson, RN is a Family Nurse Practitioner provider in Maryville, MO (NPI 1154943991).
Provider details
- NPI number
- 1154943991
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 2017018474 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
397 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 201 | $137 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 71 | $102 |
| Initial Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99221 | 67 | $66 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 28 | $39 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 17 | $62 |
| Hospital Discharge Day Management, More Than 30 Minutes |
Practice location
Mailing address
Additional practice locations (2)
- 5325 Faraon StSaint Joseph, MO 64506-3488Phone: (816) 271-6000
- 2425 Woodbine RoadSuite aSt. Joseph, MO 64505Phone: (816) 676-8050
Registry dates
- Enumerated
- 2020-05-14
- Last updated
- 2023-06-15
- Certified
- 2023-06-15
Frequently asked questions
- What is Claire Gregson's NPI number?
- Claire Gregson's National Provider Identifier (NPI) is 1154943991, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claire Gregson's specialty?
- Claire Gregson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Claire Gregson located?
- Claire Gregson's practice location on file with NPPES is 2016 S Main St, Maryville, MO 64468-2655.
- What is Claire Gregson's phone number?
- The practice phone number listed in the NPPES registry for Claire Gregson is (660) 562-2600.
- Does Claire Gregson accept Medicare?
- Claire Gregson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claire Gregson's NPI active?
- Yes — Claire Gregson's NPI (1154943991) is active in the NPPES registry as of the last update on 2023-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.