Allison Ludwig, M.D.
NPI 1548477920 · Hospitalist Physician · Bronx, NY
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Allison Ludwig, M.D. is a Hospitalist Physician provider in Bronx, NY (NPI 1548477920).
Provider details
- NPI number
- 1548477920
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A93478 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs 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
- 2007-05-16
- Last updated
- 2007-07-08
Frequently asked questions
- What is Allison Ludwig's NPI number?
- Allison Ludwig's National Provider Identifier (NPI) is 1548477920, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allison Ludwig's specialty?
- Allison Ludwig is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Allison Ludwig located?
- Allison Ludwig's practice location on file with NPPES is 1825 Eastchester Rd, Bronx, NY 10461-2301.
- What is Allison Ludwig's phone number?
- The practice phone number listed in the NPPES registry for Allison Ludwig is (718) 920-6327.
- Does Allison Ludwig accept Medicare?
- Allison Ludwig is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Allison Ludwig's NPI active?
- Yes — Allison Ludwig's NPI (1548477920) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.