Katharine Callahan, MD
NPI 1891119319 · Neonatal-Perinatal Medicine Physician · Philadelphia, PA
Katharine Callahan, MD is a Neonatal-Perinatal Medicine Physician provider in Philadelphia, PA (NPI 1891119319).
Provider details
- NPI number
- 1891119319
- Entity type
- Individual
- Primary specialty
- Neonatal-Perinatal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- 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
12 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 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.
Practice location
Mailing address
Additional practice locations (1)
- 600 N Wolfe StThe Johns Hopkins HospitalBaltimore, MD 21287-2109Phone: (410) 955-5000
Registry dates
- Enumerated
- 2014-02-05
- Last updated
- 2019-06-26
Frequently asked questions
- What is Katharine Callahan's NPI number?
- Katharine Callahan's National Provider Identifier (NPI) is 1891119319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katharine Callahan's specialty?
- Katharine Callahan is listed in the NPPES registry with a primary specialty of Neonatal-Perinatal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katharine Callahan located?
- Katharine Callahan's practice location on file with NPPES is 3401 Civic Center Blvd, Philadelphia, PA 19104.
- What is Katharine Callahan's phone number?
- The practice phone number listed in the NPPES registry for Katharine Callahan is (215) 590-4393.
- Is Katharine Callahan's NPI active?
- Yes — Katharine Callahan's NPI (1891119319) is active in the NPPES registry as of the last update on 2019-06-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.