Joselyn Mercer, PA-C
NPI 1861100117 · Physician Assistant · Austin, TX
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joselyn Mercer, PA-C is a Physician Assistant provider in Austin, TX (NPI 1861100117).
Provider details
- NPI number
- 1861100117
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Physician Assistant363A00000X
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
3 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2022-11-07
- Last updated
- 2024-04-01
- Certified
- 2024-04-01
Frequently asked questions
- What is Joselyn Mercer's NPI number?
- Joselyn Mercer's National Provider Identifier (NPI) is 1861100117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joselyn Mercer's specialty?
- Joselyn Mercer is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Joselyn Mercer located?
- Joselyn Mercer's practice location on file with NPPES is 4900 Mueller Blvd, Austin, TX 78723-3051.
- What is Joselyn Mercer's phone number?
- The practice phone number listed in the NPPES registry for Joselyn Mercer is (512) 324-0000.
- Does Joselyn Mercer accept Medicare?
- Joselyn Mercer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joselyn Mercer's NPI active?
- Yes — Joselyn Mercer's NPI (1861100117) is active in the NPPES registry as of the last update on 2024-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.