Jeffrey Wallach, M.D.
NPI 1588638118 · Nephrology Physician · New York, NY
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Wallach, M.D. is a Nephrology Physician provider in New York, NY (NPI 1588638118).
Provider details
- NPI number
- 1588638118
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 23291 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-02-13
- Last updated
- 2019-12-09
- Certified
- 2019-12-09
Frequently asked questions
- What is Jeffrey Wallach's NPI number?
- Jeffrey Wallach's National Provider Identifier (NPI) is 1588638118, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Wallach's specialty?
- Jeffrey Wallach is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Wallach located?
- Jeffrey Wallach's practice location on file with NPPES is 506 Lenox Ave, New York, NY 10037-1802.
- What is Jeffrey Wallach's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Wallach is (212) 939-2291.
- Does Jeffrey Wallach accept Medicare?
- Jeffrey Wallach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffrey Wallach's NPI active?
- Yes — Jeffrey Wallach's NPI (1588638118) is active in the NPPES registry as of the last update on 2019-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.