Jay Greenstein, MD
NPI 1982615696 · General Practice Physician · Bakersfield, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jay Greenstein, MD is a General Practice Physician provider in Bakersfield, CA (NPI 1982615696).
Provider details
- NPI number
- 1982615696
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A25998 (CA)
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
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
- 2006-08-10
- Last updated
- 2024-02-27
- Certified
- 2024-02-27
Frequently asked questions
- What is Jay Greenstein's NPI number?
- Jay Greenstein's National Provider Identifier (NPI) is 1982615696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Greenstein's specialty?
- Jay Greenstein is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Greenstein located?
- Jay Greenstein's practice location on file with NPPES is 11309 Covent Gardens Dr, Bakersfield, CA 93311-9239.
- What is Jay Greenstein's phone number?
- The practice phone number listed in the NPPES registry for Jay Greenstein is (661) 330-9294.
- Does Jay Greenstein accept Medicare?
- Jay Greenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jay Greenstein's NPI active?
- Yes — Jay Greenstein's NPI (1982615696) is active in the NPPES registry as of the last update on 2024-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.