Mary Greathouse, PMHNP-BC
NPI 1235982406 · Psychiatric/Mental Health Nurse Practitioner · Pittsburgh, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Greathouse, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Pittsburgh, PA (NPI 1235982406).
Provider details
- NPI number
- 1235982406
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- SP029562 (PA)
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 tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-04-08
- Last updated
- 2025-12-21
- Certified
- 2025-12-21
Frequently asked questions
- What is Mary Greathouse's NPI number?
- Mary Greathouse's National Provider Identifier (NPI) is 1235982406, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Greathouse's specialty?
- Mary Greathouse is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Greathouse located?
- Mary Greathouse's practice location on file with NPPES is 200 Lothrop St, Pittsburgh, PA 15213-2536.
- What is Mary Greathouse's phone number?
- The practice phone number listed in the NPPES registry for Mary Greathouse is (412) 647-2345.
- Does Mary Greathouse accept Medicare?
- Mary Greathouse is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Greathouse's NPI active?
- Yes — Mary Greathouse's NPI (1235982406) is active in the NPPES registry as of the last update on 2025-12-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.