Katy Stewart, ANP
NPI 1437576600 · Adult Health Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katy Stewart, ANP is a Adult Health Nurse Practitioner provider in Saint Louis, MO (NPI 1437576600).
Provider details
- NPI number
- 1437576600
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Female
- Sole proprietor
- No
- License
- 2014006858 (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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
347 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 179 | $105 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 148 | $74 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 20 | $148 |
Typical Medicare-allowed amounts for these services range $74–$148 (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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Valacyclovir Hclbrand: Valacyclovir | 72 | 18 |
| Acyclovir | 52 | 13 |
| Fluconazole | 49 | 14 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 34 | — |
| Venetoclaxbrand: Venclexta | 31 | 12 |
| Prednisone | 30 | 15 |
| Allopurinol | 24 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-03-25
- Last updated
- 2025-04-17
- Certified
- 2023-04-10
Frequently asked questions
- What is Katy Stewart's NPI number?
- Katy Stewart's National Provider Identifier (NPI) is 1437576600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katy Stewart's specialty?
- Katy Stewart is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katy Stewart located?
- Katy Stewart's practice location on file with NPPES is 4500 Forest Park Ave, Saint Louis, MO 63108-2114.
- What is Katy Stewart's phone number?
- The practice phone number listed in the NPPES registry for Katy Stewart is (314) 454-8304.
- Does Katy Stewart accept Medicare?
- Katy Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katy Stewart's NPI active?
- Yes — Katy Stewart's NPI (1437576600) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.