Margaret Shaffer, CRNP
NPI 1770874125 · Psychiatric/Mental Health Nurse Practitioner · Carrolltown, PA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Shaffer, CRNP is a Psychiatric/Mental Health Nurse Practitioner provider in Carrolltown, PA (NPI 1770874125).
Provider details
- NPI number
- 1770874125
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- SP011071 (PA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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 tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Buspirone Hcl | 31 |
| Divalproex Sodium | 24 |
| Trazodone Hcl | 23 |
| Mirtazapine | 22 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 21 |
| Lamotrigine | 18 |
| Venlafaxine Hclbrand: Venlafaxine Hcl Er | 13 |
| Lurasidone Hcl | 12 |
| Risperidone | 12 |
| Olanzapine | 11 |
Practice location
Mailing address
Additional practice locations (2)
- 311 E Pleasant Valley BlvdAltoona, PA 16602-5512Phone: (814) 458-1155Fax: (800) 958-2475
- 276 Jackman RdSaint Benedict, PA 15773-7724Phone: (814) 458-1155Fax: (800) 958-2475
Registry dates
- Enumerated
- 2011-04-20
- Last updated
- 2025-01-16
- Certified
- 2025-01-16
Frequently asked questions
- What is Margaret Shaffer's NPI number?
- Margaret Shaffer's National Provider Identifier (NPI) is 1770874125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Shaffer's specialty?
- Margaret Shaffer is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Shaffer located?
- Margaret Shaffer's practice location on file with NPPES is 204 S Main St Ste 200, Carrolltown, PA 15722-7210.
- What is Margaret Shaffer's phone number?
- The practice phone number listed in the NPPES registry for Margaret Shaffer is (814) 458-1155.
- Does Margaret Shaffer accept Medicare?
- Margaret Shaffer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Shaffer's NPI active?
- Yes — Margaret Shaffer's NPI (1770874125) is active in the NPPES registry as of the last update on 2025-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.