Dr Mark S Tanker, DO - Medicare Gastroenterology in Philadelphia, PA

Dr Mark S Tanker, DO is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Philadelphia, Pennsylvania. He went to Philadelphia College Of Osteopathic Medicine and graduated in 1977 and has 47 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Einstein Practice Plan Inc and his current practice location is 700 Cottman Ave, Suite 201, Philadelphia, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (215) 742-9900.

Dr Mark S Tanker is licensed to practice in Pennsylvania (license number OS004028L) 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 1831137538.

Contact Information

Dr Mark S Tanker, DO
700 Cottman Ave, Suite 201,
Philadelphia, PA 19111-3062
(215) 742-9900
(215) 742-7051

Map and Direction




Physician's Profile

Full NameDr Mark S Tanker
GenderMale
SpecialityGastroenterology
Experience47 Years
Location700 Cottman Ave, Philadelphia, 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:
  • Dr Mark S Tanker attended and graduated from Philadelphia College Of Osteopathic Medicine in 1977
  NPI Data:
  • NPI Number: 1831137538
  • Provider Enumeration Date: 06/03/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 6608808415
  • Enrollment ID: I20050901000058

Medical Identifiers

Medical identifiers for Dr Mark S Tanker such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831137538NPI-NPPES
000859825/0002MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology OS004028L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Albert Einstein Medical CenterPhiladelphia, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Einstein Practice Plan Inc2769395896591

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 S Tanker allows following entities to bill medicare on his behalf.
Entity NameEinstein Practice Plan Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760434468
PECOS PAC ID: 2769395896
Enrollment ID: O20040219000728
Entity NamePhiladelphia Gastroenterology Consultants Ltd.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861425613
PECOS PAC ID: 8921079443
Enrollment ID: O20040805001201

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 S Tanker 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 S Tanker, DO
700 Cottman Ave, Suite 201,
Philadelphia, PA 19111-3062

Ph: (215) 742-9900
Dr Mark S Tanker, DO
700 Cottman Ave, Suite 201,
Philadelphia, PA 19111-3062

Ph: (215) 742-9900

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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