Alison Joy Leff, DO - Medicare Internal Medicine in Wynnewood, PA

  1. Home
  2. Internal Medicine
  3. PA
  4. Wynnewood
Alison Joy Leff, DO is a medicare enrolled "Internal Medicine" physician in Wynnewood, Pennsylvania. She went to Philadelphia College Of Osteopathic Medicine and graduated in 2000 and has 25 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Bryn Mawr Medical Specialists Association and her current practice location is 300 E Lancaster Ave Ste 400, Wynnewood, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (610) 642-2002.

Alison Joy Leff is licensed to practice in Pennsylvania (license number OS013095) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1568499473.

Contact Information

Alison Joy Leff, DO
300 E Lancaster Ave Ste 400,
Wynnewood, PA 19096-2139
(610) 642-2002
(610) 642-7607

Map and Direction




Physician's Profile

Full NameAlison Joy Leff
GenderFemale
SpecialityInternal Medicine
Experience25 Years
Location300 E Lancaster Ave Ste 400, Wynnewood, Pennsylvania
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Alison Joy Leff attended and graduated from Philadelphia College Of Osteopathic Medicine in 2000
  NPI Data:
  • NPI Number: 1568499473
  • Provider Enumeration Date: 06/27/2006
  • Last Update Date: 01/03/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 8921086414
  • Enrollment ID: I20040712000177

Medical Identifiers

Medical identifiers for Alison Joy Leff such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1568499473NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine OS013095 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Southeastern Home Health ServicesBristol, PAHome health agency
Main Line Health Home Care & Hospice - Home HealthRadnor, PAHome health agency
Holisticare Hospice, LlcBerwyn, PAHospice
Hospice Compassus - PhiladelphiaNewtown square, PAHospice
Willow Tree HospiceKennett square, PAHospice
Compassionate Care HospiceBensalem, PAHospice
Naamans Creek Country ManorBoothwyn, PANursing home
Brandywine HallWest chester, PANursing home
Barclay FriendsWest chester, PANursing home
Aventura At PembrookeWest chester, PANursing home
Broomall ManorBroomall, PANursing home

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Bryn Mawr Medical Specialists Association418361093491

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. Alison Joy Leff allows following entities to bill medicare on her behalf.
Entity NameGeps Physician Group Of Pennsylvania Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467471615
PECOS PAC ID: 8426953597
Enrollment ID: O20031204000010
Entity NameBryn Mawr Medical Specialists Association
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841226099
PECOS PAC ID: 4183610934
Enrollment ID: O20040426000467
Entity NameGps Physician Group, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1881109452
PECOS PAC ID: 9739447400
Enrollment ID: O20180123000502

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. Alison Joy Leff 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
Alison Joy Leff, DO
300 E Lancaster Ave Ste 400,
Wynnewood, PA 19096-2139

Ph: (610) 642-2002		Alison Joy Leff, DO
300 E Lancaster Ave Ste 400,
Wynnewood, PA 19096-2139

Ph: (610) 642-2002

Reviews and Comments


Internal Medicine Doctors in Wynnewood, PA

Dr. Akhnuwkh Jones, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 100 E Lancaster Ave, Wynnewood, PA 19096
Phone: 610-645-2000    
Amanda B Christini, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 100 E Lancaster Ave, 4 Pavilion, Suite 4303, Wynnewood, PA 19096
Phone: 484-476-6421    Fax: 484-476-3149
Daniel Wang, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 E Lancaster Ave, 4 Pavilion Ste 4303, Wynnewood, PA 19096
Phone: 484-476-6421    Fax: 484-476-3149
Margaret Mack,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 100 E Lancaster Ave, Wynnewood, PA 19096
Phone: 610-642-3796    
Xiaoling Yu, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 100 E Lancaster Ave, Wynnewood, PA 19096
Phone: 484-476-6421    
Dr. Eric Marc Russell, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 E Lancaster Ave, Wynnewood, PA 19096
Phone: 610-645-2000    
Dr. Jeremy Winthrop Gelber, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 330 Aubrey Rd, Wynnewood, PA 19096
Phone: 610-642-3999    

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.