Michael L Zager, MD - Medicare Internal Medicine in Allentown, PA

Michael L Zager, MD is a medicare enrolled "Internal Medicine" physician in Allentown, Pennsylvania. He graduated from medical school in 1991 and has 33 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Lehigh Valley Physician Group and his current practice location is 798 Hausman Rd, Suite 100, Allentown, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (610) 336-8260.

Michael L Zager is licensed to practice in Pennsylvania (license number MD052741L) 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 1326087362.

Contact Information

Michael L Zager, MD
798 Hausman Rd, Suite 100,
Allentown, PA 18104-9108
(610) 336-8260
(610) 336-8269

Map and Direction




Physician's Profile

Full NameMichael L Zager
GenderMale
SpecialityInternal Medicine
Experience33 Years
Location798 Hausman Rd, Allentown, Pennsylvania
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:
  • Michael L Zager graduated from medical school in 1991
  NPI Data:
  • NPI Number: 1326087362
  • Provider Enumeration Date: 06/05/2006
  • Last Update Date: 03/03/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 1456494087
  • Enrollment ID: I20100204000744

Medical Identifiers

Medical identifiers for Michael L Zager such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1326087362NPI-NPPES
0726592000OtherPAKEYSTONE EAST
431890OtherPAHIGHMARK BLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD052741L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Lehigh Valley HospitalAllentown, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Lehigh Valley Physician Group30724251231892

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. Michael L Zager allows following entities to bill medicare on his behalf.
Entity NameLehigh Valley Physician Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457309650
PECOS PAC ID: 3072425123
Enrollment ID: O20040227000335
Entity NameSchuylkill Health System Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588603567
PECOS PAC ID: 0840285532
Enrollment ID: O20040420001197

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. Michael L Zager 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
Michael L Zager, MD
Po Box 783311,
Philadelphia, PA 19178-1754

Ph: (484) 884-4500
Michael L Zager, MD
798 Hausman Rd, Suite 100,
Allentown, PA 18104-9108

Ph: (610) 336-8260

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).

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.