Julia Callahan, MSN, FNP-BC
NPI 1922999663 · Family Nurse Practitioner · Trenton, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Callahan, MSN, FNP-BC is a Family Nurse Practitioner provider in Trenton, MI (NPI 1922999663).
Provider details
- NPI number
- 1922999663
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, FNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 4704407553 (MI)
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
Under 1 yr in 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
- 2025-07-11
- Last updated
- 2025-07-11
- Certified
- 2025-07-01
Frequently asked questions
- What is Julia Callahan's NPI number?
- Julia Callahan's National Provider Identifier (NPI) is 1922999663, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Callahan's specialty?
- Julia Callahan is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Julia Callahan located?
- Julia Callahan's practice location on file with NPPES is 1651 Kingsway Ct Ste a, Trenton, MI 48183-1959.
- What is Julia Callahan's phone number?
- The practice phone number listed in the NPPES registry for Julia Callahan is (734) 671-2110.
- Does Julia Callahan accept Medicare?
- Julia Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Callahan's NPI active?
- Yes — Julia Callahan's NPI (1922999663) is active in the NPPES registry as of the last update on 2025-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.