Katharine Stoll, NP
NPI 1508349978 · Family Nurse Practitioner · Webster Groves, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katharine Stoll, NP is a Family Nurse Practitioner provider in Webster Groves, MO (NPI 1508349978).
Provider details
- NPI number
- 1508349978
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 2018035539 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
7 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
249 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 206 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 31 | $105 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 12 | $106 |
Typical Medicare-allowed amounts for these services range $74–$106 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methylprednisolone | 53 | 53 |
| Amlodipine Besylate | 26 | 11 |
| Cyclobenzaprine Hcl | 22 | 20 |
| Azithromycin | 21 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 19 | 14 |
| Prednisone | 16 | 16 |
| Sertraline Hcl | 15 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$23 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-09-12
- Last updated
- 2023-03-17
- Certified
- 2023-03-17
Frequently asked questions
- What is Katharine Stoll's NPI number?
- Katharine Stoll's National Provider Identifier (NPI) is 1508349978, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Stoll's specialty?
- Katharine Stoll is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katharine Stoll located?
- Katharine Stoll's practice location on file with NPPES is 8021 Watson Rd, Webster Groves, MO 63119-5304.
- What is Katharine Stoll's phone number?
- The practice phone number listed in the NPPES registry for Katharine Stoll is (866) 389-2727.
- Does Katharine Stoll accept Medicare?
- Katharine Stoll is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katharine Stoll's NPI active?
- Yes — Katharine Stoll's NPI (1508349978) is active in the NPPES registry as of the last update on 2023-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.