Callista O'Brien, PA-C
NPI 1023848140 · Physician Assistant · Temple, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Callista O'Brien, PA-C is a Physician Assistant provider in Temple, PA (NPI 1023848140).
Provider details
- NPI number
- 1023848140
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- MA065644 (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
1 yr 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
- 2024-08-05
- Last updated
- 2024-08-05
- Certified
- 2024-08-04
Frequently asked questions
- What is Callista O'Brien's NPI number?
- Callista O'Brien's National Provider Identifier (NPI) is 1023848140, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Callista O'Brien's specialty?
- Callista O'Brien is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Callista O'Brien located?
- Callista O'Brien's practice location on file with NPPES is 4301 5th Street Hwy, Temple, PA 19560-1739.
- What is Callista O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Callista O'Brien is (610) 208-8801.
- Does Callista O'Brien accept Medicare?
- Callista O'Brien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Callista O'Brien's NPI active?
- Yes — Callista O'Brien's NPI (1023848140) is active in the NPPES registry as of the last update on 2024-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.