Jennifer Mcmahan
NPI 1811588205 · Psychiatric/Mental Health Nurse Practitioner · Chesterfield, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jennifer Mcmahan is a Psychiatric/Mental Health Nurse Practitioner provider in Chesterfield, MO (NPI 1811588205).
Provider details
- NPI number
- 1811588205
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2021001196 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 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
65 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 | 65 | $100 |
Typical Medicare-allowed amounts for these services range $100–$100 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lamotrigine | 53 |
| Fluoxetine Hcl | 51 |
| Buspirone Hcl | 37 |
| Aripiprazole | 29 |
| Quetiapine Fumarate | 27 |
| Trazodone Hcl | 27 |
| Sertraline Hcl | 25 |
| Hydroxyzine Pamoate | 24 |
| Clonidine Hcl | 22 |
| Olanzapine | 22 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-01-29
- Last updated
- 2022-12-01
- Certified
- 2022-12-01
Frequently asked questions
- What is Jennifer Mcmahan's NPI number?
- Jennifer Mcmahan's National Provider Identifier (NPI) is 1811588205, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jennifer Mcmahan's specialty?
- Jennifer Mcmahan is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jennifer Mcmahan located?
- Jennifer Mcmahan's practice location on file with NPPES is 140 Long Rd Ste 123, Chesterfield, MO 63005-1282.
- What is Jennifer Mcmahan's phone number?
- The practice phone number listed in the NPPES registry for Jennifer Mcmahan is (636) 262-4261.
- Does Jennifer Mcmahan accept Medicare?
- Jennifer Mcmahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jennifer Mcmahan's NPI active?
- Yes — Jennifer Mcmahan's NPI (1811588205) is active in the NPPES registry as of the last update on 2022-12-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.