Katie Haas, FNP-BC
NPI 1912558446 · Family Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katie Haas, FNP-BC is a Family Nurse Practitioner provider in Saint Louis, MO (NPI 1912558446).
Provider details
- NPI number
- 1912558446
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 2019037093 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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
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
328 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 | $102 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 52 | $106 |
| Hemoglobin A1c Level83036 | 26 | $10 |
| Administration of Influenza Virus VaccineG0008 | 23 | $31 |
| Automated Urinalysis Test81003 | 16 | $2 |
| Admn Sarscov2 Vacc 1 Dose90480 | 16 | $42 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 32 | 18 |
| Azithromycin | 26 | 26 |
| Amlodipine Besylate | 22 | — |
| Prednisone | 21 | 15 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 20 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 17 | 13 |
| Hydrochlorothiazide |
Practice location
Mailing address
Additional practice locations (2)
- 14021 New Halls Ferry RdFlorissant, MO 63033-2708Phone: (314) 839-9053
- 3920 Hampton AveSaint Louis, MO 63109-1401Phone: (314) 687-2713
Registry dates
- Enumerated
- 2019-09-25
- Last updated
- 2022-02-02
- Certified
- 2022-02-02
Frequently asked questions
- What is Katie Haas's NPI number?
- Katie Haas's National Provider Identifier (NPI) is 1912558446, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katie Haas's specialty?
- Katie Haas is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katie Haas located?
- Katie Haas's practice location on file with NPPES is 30 Ronnies Plz, Saint Louis, MO 63126-3552.
- What is Katie Haas's phone number?
- The practice phone number listed in the NPPES registry for Katie Haas is (314) 989-6807.
- Does Katie Haas accept Medicare?
- Katie Haas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katie Haas's NPI active?
- Yes — Katie Haas's NPI (1912558446) is active in the NPPES registry as of the last update on 2022-02-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.