Jeffrey Klein, M.D
NPI 1336151950 · Reproductive Endocrinology Physician · New York, NY
Jeffrey Klein, M.D is a Reproductive Endocrinology Physician provider in New York, NY (NPI 1336151950).
Provider details
- NPI number
- 1336151950
- Entity type
- Individual
- Primary specialty
- Reproductive Endocrinology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 213759 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$133 across 9 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-12
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jeffrey Klein's NPI number?
- Jeffrey Klein's National Provider Identifier (NPI) is 1336151950, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Klein's specialty?
- Jeffrey Klein is listed in the NPPES registry with a primary specialty of Reproductive Endocrinology Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Klein located?
- Jeffrey Klein's practice location on file with NPPES is 635 Madison Ave, New York, NY 10022-1009.
- What is Jeffrey Klein's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Klein is (212) 756-5777.
- Is Jeffrey Klein's NPI active?
- Yes — Jeffrey Klein's NPI (1336151950) 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.