Dr Jason Adam Klein, MD - Medicare Endocrinology in Commack, NY

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Dr Jason Adam Klein, MD is a medicare enrolled "Pediatrics - Pediatric Endocrinology" physician in Commack, New York. He graduated from medical school in 2008 and has 18 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice New York University and his current practice location is 500 Commack Rd, Commack, New York. You can reach out to his office (for appointments etc.) via phone at (631) 444-5437.

Dr Jason Adam Klein is licensed to practice in New York (license number 255029) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1033358676.

Contact Information

Dr Jason Adam Klein, MD
500 Commack Rd,
Commack, NY 11725-5020
(631) 444-5437
(631) 638-0157

Map and Direction




Physician's Profile

Full NameDr Jason Adam Klein
GenderMale
SpecialityEndocrinology
Experience18 Years
Location500 Commack Rd, Commack, New York
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jason Adam Klein graduated from medical school in 2008
  NPI Data:
  • NPI Number: 1033358676
  • Provider Enumeration Date: 02/04/2009
  • Last Update Date: 03/25/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6305157256
  • Enrollment ID: I20150618000679

Medical Identifiers

Medical identifiers for Dr Jason Adam Klein such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033358676NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0210XPediatrics - Pediatric Nephrology 255029 (New York)Secondary
2080P0205XPediatrics - Pediatric Endocrinology 255029 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
New York University13552324225805

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Jason Adam Klein allows following entities to bill medicare on his behalf.
Entity NameMaimonides Faculty Practice Plan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053344846
PECOS PAC ID: 7012808348
Enrollment ID: O20040324000597
Entity NameNew York University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285826438
PECOS PAC ID: 1355232422
Enrollment ID: O20090822000026
Entity NameMmc Pediatrics Faculty Practice
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285648154
PECOS PAC ID: 0143406918
Enrollment ID: O20110511000496

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Jason Adam Klein is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Jason Adam Klein, MD
12 Perri Pl,
Dix Hills, NY 11746-6561

Ph: (516) 509-1566		Dr Jason Adam Klein, MD
500 Commack Rd,
Commack, NY 11725-5020

Ph: (631) 444-5437

Reviews and Comments


Pediatrics Doctors in Commack, NY

Dr. Allen Michael Kaplan, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 646 Commack Rd, Commack, NY 11725
Phone: 631-499-4114    Fax: 631-499-1468
Dr. Lorraine Catalano, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 154 Commack Rd, Suite 100, Commack, NY 11725
Phone: 631-499-8282    Fax: 631-462-5462
Dr. Christine Marie Danzi-hacken, D.O.
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 340 Veterans Memorial Hwy, Suite 10, Commack, NY 11725
Phone: 631-864-6440    Fax: 631-864-6445
Rayan Kteish, MD
Pediatrics
Medicare: May Accept Medicare Assignments
Practice Location: 500 Commack Rd Ste 104, Commack, NY 11725
Phone: 631-444-5437    
Neil Mark Bellovin Iv, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 646 Commack Rd, Commack, NY 11725
Phone: 631-499-4114    Fax: 631-499-1468
George Rogu, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 646 Commack Rd, Commack, NY 11725
Phone: 631-499-4114    

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.