Dr John L Zapas, MD - Medicare Surgical Oncology in Frederick, MD

Dr John L Zapas, MD is a medicare enrolled "Surgery" physician in Frederick, Maryland. He went to University Of Maryland School Of Medicine and graduated in 1991 and has 33 years of diverse experience with area of expertise as Surgical Oncology. He is a member of the group practice Frederick Health Medical Group Llc and his current practice location is 501 W 7th St, Frederick, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 663-9573.

Dr John L Zapas is licensed to practice in Maryland (license number D0044227) 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 1487613022.

Contact Information

Dr John L Zapas, MD
501 W 7th St,
Frederick, MD 21701-4586
(301) 663-9573
Not Available

Map and Direction




Physician's Profile

Full NameDr John L Zapas
GenderMale
SpecialitySurgical Oncology
Experience33 Years
Location501 W 7th St, Frederick, Maryland
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 John L Zapas attended and graduated from University Of Maryland School Of Medicine in 1991
  NPI Data:
  • NPI Number: 1487613022
  • Provider Enumeration Date: 03/22/2006
  • Last Update Date: 01/24/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 9335331644
  • Enrollment ID: I20101005000879

Medical Identifiers

Medical identifiers for Dr John L Zapas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1487613022NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery D0044227 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Frederick Health HospitalFrederick, MDHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Frederick Health Medical Group Llc9931341096178

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 John L Zapas allows following entities to bill medicare on his behalf.
Entity NameFranklin Square Hospital Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740204098
PECOS PAC ID: 0749185452
Enrollment ID: O20031205000338
Entity NameFrederick Health Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1619258225
PECOS PAC ID: 9931341096
Enrollment ID: O20130820000555

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 John L Zapas 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 John L Zapas, MD
Po Box 37086,
Baltimore, MD 21297-3086

Ph: (240) 439-8812
Dr John L Zapas, MD
501 W 7th St,
Frederick, MD 21701-4586

Ph: (301) 663-9573

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.