Theresia Lefang, DNP
NPI 1942848742 · Psychiatric/Mental Health Nurse Practitioner · Fort Sam Houston, TX
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresia Lefang, DNP is a Psychiatric/Mental Health Nurse Practitioner provider in Fort Sam Houston, TX (NPI 1942848742).
Provider details
- NPI number
- 1942848742
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP
- Sex
- Female
- Sole proprietor
- No
- License
- AP144166 (TX)
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
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
124 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 Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 124 | $31 |
Typical Medicare-allowed amounts for these services range $31–$31 (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 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 211 | 32 |
| Buspirone Hcl | 186 | 22 |
| Fluoxetine Hcl | 169 | 19 |
| Quetiapine Fumarate | 161 | 13 |
| Benztropine Mesylate | 139 | 18 |
| Risperidone | 132 | 11 |
| Lamotrigine | 129 | 20 |
| Aripiprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-12-12
- Last updated
- 2026-05-21
- Certified
- 2026-05-21
Frequently asked questions
- What is Theresia Lefang's NPI number?
- Theresia Lefang's National Provider Identifier (NPI) is 1942848742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresia Lefang's specialty?
- Theresia Lefang is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Theresia Lefang located?
- Theresia Lefang's practice location on file with NPPES is 3551 Roger Brooke Dr, Fort Sam Houston, TX 78234-4504.
- What is Theresia Lefang's phone number?
- The practice phone number listed in the NPPES registry for Theresia Lefang is (210) 916-9588.
- Does Theresia Lefang accept Medicare?
- Theresia Lefang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresia Lefang's NPI active?
- Yes — Theresia Lefang's NPI (1942848742) is active in the NPPES registry as of the last update on 2026-05-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.