Jay Kleinfeld, MD
NPI 1003949207 · Interventional Cardiology Physician · New York, NY
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jay Kleinfeld, MD is a Interventional Cardiology Physician provider in New York, NY (NPI 1003949207).
Provider details
- NPI number
- 1003949207
- Entity type
- Individual
- Primary specialty
- Interventional Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 16728101 (NY)
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
- 2007-03-14
- Last updated
- 2016-03-23
Frequently asked questions
- What is Jay Kleinfeld's NPI number?
- Jay Kleinfeld's National Provider Identifier (NPI) is 1003949207, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Kleinfeld's specialty?
- Jay Kleinfeld is listed in the NPPES registry with a primary specialty of Interventional Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Kleinfeld located?
- Jay Kleinfeld's practice location on file with NPPES is 555 Main St, New York, NY 10044-0129.
- What is Jay Kleinfeld's phone number?
- The practice phone number listed in the NPPES registry for Jay Kleinfeld is (212) 688-3920.
- Does Jay Kleinfeld accept Medicare?
- Jay Kleinfeld is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jay Kleinfeld's NPI active?
- Yes — Jay Kleinfeld's NPI (1003949207) is active in the NPPES registry as of the last update on 2016-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.