Nancy Birtley, PMHNP
NPI 1689673956 · Psychiatric/Mental Health Nurse Practitioner · Saint Peters, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Birtley, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Saint Peters, MO (NPI 1689673956).
Provider details
- NPI number
- 1689673956
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Female
- Sole proprietor
- No
- License
- 107603 (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
20 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
457 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) |
|---|---|---|
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, at Least 10 Minutes99307 | 175 | $33 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 108 | $160 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 79 | $61 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 38 | $140 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 | 35 | $37 |
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes |
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) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 583 | 54 |
| Trazodone Hcl | 206 | 52 |
| Divalproex Sodium | 133 | 24 |
| Duloxetine Hcl | 78 | — |
| Quetiapine Fumarate | 73 | 17 |
| Escitalopram Oxalate | 53 | 11 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-19
- Last updated
- 2023-02-10
- Certified
- 2023-02-10
Frequently asked questions
- What is Nancy Birtley's NPI number?
- Nancy Birtley's National Provider Identifier (NPI) is 1689673956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Birtley's specialty?
- Nancy Birtley is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nancy Birtley located?
- Nancy Birtley's practice location on file with NPPES is 6209 Mid Rivers Mall Dr, Saint Peters, MO 63304-1102.
- What is Nancy Birtley's phone number?
- The practice phone number listed in the NPPES registry for Nancy Birtley is (636) 244-4500.
- Does Nancy Birtley accept Medicare?
- Nancy Birtley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Birtley's NPI active?
- Yes — Nancy Birtley's NPI (1689673956) is active in the NPPES registry as of the last update on 2023-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.