Tammy Prewitt, F.N.P.
NPI 1831283894 · Family Nurse Practitioner · Eureka, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Prewitt, F.N.P. is a Family Nurse Practitioner provider in Eureka, MO (NPI 1831283894).
Provider details
- NPI number
- 1831283894
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- F.N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 131584 (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
19 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
181 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 | 86 | $103 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 63 | $73 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 20 | $106 |
| Administration of Influenza Virus VaccineG0008 | 12 | $31 |
Typical Medicare-allowed amounts for these services range $31–$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 · 60 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 249 | 74 |
| Amlodipine Besylate | 200 | 59 |
| Levothyroxine Sodium | 191 | 57 |
| Lisinopril | 184 | 54 |
| Omeprazole | 131 | 44 |
| Losartan Potassium | 120 | 40 |
| Meloxicam | 93 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-03
- Last updated
- 2018-02-28
Frequently asked questions
- What is Tammy Prewitt's NPI number?
- Tammy Prewitt's National Provider Identifier (NPI) is 1831283894, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Prewitt's specialty?
- Tammy Prewitt is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Prewitt located?
- Tammy Prewitt's practice location on file with NPPES is 20 the Legends Pkwy, Eureka, MO 63025-3801.
- What is Tammy Prewitt's phone number?
- The practice phone number listed in the NPPES registry for Tammy Prewitt is (636) 938-3399.
- Does Tammy Prewitt accept Medicare?
- Tammy Prewitt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Prewitt's NPI active?
- Yes — Tammy Prewitt's NPI (1831283894) is active in the NPPES registry as of the last update on 2018-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.