Nan Roberts, RN, AP/MHCNS
NPI 1528172103 · Psychiatric/Mental Health Clinical Nurse Specialist · Saint Peters, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nan Roberts, RN, AP/MHCNS is a Psychiatric/Mental Health Clinical Nurse Specialist provider in Saint Peters, MO (NPI 1528172103).
Provider details
- NPI number
- 1528172103
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- RN, AP/MHCNS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 078206 (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
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
40 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 Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 40 | $40 |
Typical Medicare-allowed amounts for these services range $40–$40 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-19
- Last updated
- 2025-04-16
- Certified
- 2025-04-16
Frequently asked questions
- What is Nan Roberts's NPI number?
- Nan Roberts's National Provider Identifier (NPI) is 1528172103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nan Roberts's specialty?
- Nan Roberts is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nan Roberts located?
- Nan Roberts's practice location on file with NPPES is 5700 Mexico Rd Ste 8, Saint Peters, MO 63376-1667.
- What is Nan Roberts's phone number?
- The practice phone number listed in the NPPES registry for Nan Roberts is (636) 477-6464.
- Does Nan Roberts accept Medicare?
- Nan Roberts is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nan Roberts's NPI active?
- Yes — Nan Roberts's NPI (1528172103) is active in the NPPES registry as of the last update on 2025-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.