Nadine Callahan, M.D.
NPI 1194015511 · Anesthesiology Physician · Atlanta, GA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nadine Callahan, M.D. is a Anesthesiology Physician provider in Atlanta, GA (NPI 1194015511).
Provider details
- NPI number
- 1194015511
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
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
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
- 2011-04-19
- Last updated
- 2019-06-12
Frequently asked questions
- What is Nadine Callahan's NPI number?
- Nadine Callahan's National Provider Identifier (NPI) is 1194015511, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nadine Callahan's specialty?
- Nadine Callahan is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Nadine Callahan located?
- Nadine Callahan's practice location on file with NPPES is 1364 Clifton Rd Ne, Atlanta, GA 30322-1059.
- What is Nadine Callahan's phone number?
- The practice phone number listed in the NPPES registry for Nadine Callahan is (404) 778-3903.
- Does Nadine Callahan accept Medicare?
- Nadine Callahan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nadine Callahan's NPI active?
- Yes — Nadine Callahan's NPI (1194015511) is active in the NPPES registry as of the last update on 2019-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.