Marissa Luan Tan, DO, MPH - Medicare Preventive Medicine in Philadelphia, PA

Marissa Luan Tan, DO, MPH is a medicare enrolled "Preventive Medicine - Addiction Medicine" physician in Philadelphia, Pennsylvania. Her current practice location is 504 South St, Philadelphia, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (800) 805-6989.

Marissa Luan Tan is licensed to practice in Pennsylvania (license number OS020328) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1720583818.

Contact Information

Marissa Luan Tan, DO, MPH
504 South St,
Philadelphia, PA 19147-2210
(800) 805-6989
Not Available

Map and Direction




Physician's Profile

Full NameMarissa Luan Tan
GenderFemale
SpecialityPreventive Medicine - Addiction Medicine
Location504 South St, Philadelphia, Pennsylvania
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1720583818
  • Provider Enumeration Date: 03/29/2018
  • Last Update Date: 04/02/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3870998503
  • Enrollment ID: I20220609000969

Medical Identifiers

Medical identifiers for Marissa Luan Tan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1720583818NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2083A0300XPreventive Medicine - Addiction Medicine H0087983 (Maryland)Secondary
2083P0901XPreventive Medicine - Public Health & General Preventive Medicine H0087983 (Maryland)Secondary
2083P0901XPreventive Medicine - Public Health & General Preventive Medicine OS020328 (Pennsylvania)Secondary
2083A0300XPreventive Medicine - Addiction Medicine OS020328 (Pennsylvania)Primary

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. Marissa Luan Tan allows following entities to bill medicare on her behalf.
Entity NameArs Treatment Centers Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346731171
PECOS PAC ID: 0042568131
Enrollment ID: O20180807000056

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. Marissa Luan Tan 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
Marissa Luan Tan, DO, MPH
504 South St,
Philadelphia, PA 19147-2210

Ph: (800) 805-6989
Marissa Luan Tan, DO, MPH
504 South St,
Philadelphia, PA 19147-2210

Ph: (800) 805-6989

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.