Dr Mark H Gardenswartz, MD - Medicare Nephrology in New York, NY

Dr Mark H Gardenswartz, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in New York, New York. He went to University Of Colorado School Of Medicine, Denver and graduated in 1975 and has 49 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice North Shore - Lij Medical Pc and his current practice location is 110 E 59th St, New York, New York. You can reach out to his office (for appointments etc.) via phone at (212) 583-2930.

Dr Mark H Gardenswartz is licensed to practice in New York (license number 128389) 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 1326063215.

Contact Information

Dr Mark H Gardenswartz, MD
110 E 59th St,
New York, NY 10022-1304
(212) 583-2930
Not Available

Map and Direction




Physician's Profile

Full NameDr Mark H Gardenswartz
GenderMale
SpecialityNephrology
Experience49 Years
Location110 E 59th St, New York, 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 Mark H Gardenswartz attended and graduated from University Of Colorado School Of Medicine, Denver in 1975
  NPI Data:
  • NPI Number: 1326063215
  • Provider Enumeration Date: 07/13/2006
  • Last Update Date: 09/16/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 7618884511
  • Enrollment ID: I20040715000594

Medical Identifiers

Medical identifiers for Dr Mark H Gardenswartz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326063215NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 128389 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lenox Hill HospitalNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Shore - Lij Medical Pc33757015685120

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 Mark H Gardenswartz allows following entities to bill medicare on his behalf.
Entity NameNorth Shore Lij Physicians Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073818308
PECOS PAC ID: 6204093248
Enrollment ID: O20120203000011
Entity NameNorth Shore - Lij Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053688572
PECOS PAC ID: 3375701568
Enrollment ID: O20120220000262

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 Mark H Gardenswartz 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 Mark H Gardenswartz, MD
110 E 59th St,
New York, NY 10022-1304

Ph: (212) 583-2930
Dr Mark H Gardenswartz, MD
110 E 59th St,
New York, NY 10022-1304

Ph: (212) 583-2930

Reviews and Comments


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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).

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