Mitchell Kleinberg, M.D.
NPI 1447367537 · Pediatric Adolescent Medicine Physician · Holbrook, NY
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mitchell Kleinberg, M.D. is a Pediatric Adolescent Medicine Physician provider in Holbrook, NY (NPI 1447367537).
Provider details
- NPI number
- 1447367537
- Entity type
- Individual
- Primary specialty
- Pediatric Adolescent Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 154133 (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.
$93 across 4 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
- 2006-08-24
- Last updated
- 2012-04-10
Frequently asked questions
- What is Mitchell Kleinberg's NPI number?
- Mitchell Kleinberg's National Provider Identifier (NPI) is 1447367537, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mitchell Kleinberg's specialty?
- Mitchell Kleinberg is listed in the NPPES registry with a primary specialty of Pediatric Adolescent Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mitchell Kleinberg located?
- Mitchell Kleinberg's practice location on file with NPPES is 270 Union Ave, Holbrook, NY 11741-1823.
- What is Mitchell Kleinberg's phone number?
- The practice phone number listed in the NPPES registry for Mitchell Kleinberg is (631) 558-4442.
- Does Mitchell Kleinberg accept Medicare?
- Mitchell Kleinberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mitchell Kleinberg's NPI active?
- Yes — Mitchell Kleinberg's NPI (1447367537) is active in the NPPES registry as of the last update on 2012-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.