Dr William Robson Greer, MD - Medicare Internal Medicine in Paoli, PA

Dr William Robson Greer, MD is a medicare enrolled "Internal Medicine" physician in Paoli, Pennsylvania. He went to Perelman School Of Med At The University Of Pennsylvania and graduated in 1993 and has 31 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 21 Industrial Blvd, Suite 200, Paoli, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (610) 651-0370.

Dr William Robson Greer is licensed to practice in Pennsylvania (license number MD056544L) 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 1598722472.

Contact Information

Dr William Robson Greer, MD
21 Industrial Blvd, Suite 200,
Paoli, PA 19301-1610
(610) 651-0370
(610) 651-7758

Map and Direction




Physician's Profile

Full NameDr William Robson Greer
GenderMale
SpecialityInternal Medicine
Experience31 Years
Location21 Industrial Blvd, Paoli, 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 William Robson Greer attended and graduated from Perelman School Of Med At The University Of Pennsylvania in 1993
  NPI Data:
  • NPI Number: 1598722472
  • Provider Enumeration Date: 04/26/2006
  • Last Update Date: 09/12/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 9830225127
  • Enrollment ID: I20100325000651

Medical Identifiers

Medical identifiers for Dr William Robson Greer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598722472NPI-NPPES
S104615OtherPABLUE SHIELD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD056544L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Main Line Health Home Care & Hospice - Home HealthRadnor, PAHome health agency
Main Line Health Homecare & Hospice - HospiceRadnor, PAHospice
Paoli HospitalPaoli, PAHospital
Bryn Mawr HospitalBryn mawr, PAHospital
Main Line Hospital LankenauWynnewood, PAHospital
Riddle Memorial HospitalMedia, PAHospital
Hospital Of Univ Of PennsylvaniaPhiladelphia, PAHospital

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 William Robson Greer allows following entities to bill medicare on his behalf.
Entity NameWilliam Greer, M.d., P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578674917
PECOS PAC ID: 8729114020
Enrollment ID: O20100325000668

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 William Robson Greer 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 William Robson Greer, MD
21 Industrial Blvd, Suite 200,
Paoli, PA 19301-1610

Ph: (610) 651-0370
Dr William Robson Greer, MD
21 Industrial Blvd, Suite 200,
Paoli, PA 19301-1610

Ph: (610) 651-0370

Reviews and Comments


Internal Medicine Doctors in Paoli, PA

Dr. Scott A. Olex, D.O.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 255 W Lancaster Ave, Paoli, PA 19301
Phone: 484-565-1510    Fax: 484-565-1513
Matthew Levy, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Industrial Blvd Ste 200, Paoli, PA 19301
Phone: 610-647-2400    Fax: 610-647-3902
Ronald Eric Krauser, MD
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Medicare: Medicare Enrolled
Practice Location: 11 Industrial Blvd., Suite 201, Paoli, PA 19301
Phone: 610-647-2398    Fax: 610-993-2867
Dr. Elliot Mark Gerber, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 255 W Lancaster Ave, Medical Office Bldg Ii - Suite 328, Paoli, PA 19301
Phone: 610-647-2400    Fax: 610-647-3902
Leo A Podolsky, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2 Industrial Blvd Ste 200, Paoli, PA 19301
Phone: 610-647-4260    Fax: 610-647-7430
Emre Beken, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 255 W Lancaster Ave, Paoli, PA 19301
Phone: 484-565-1513    
Dr. Lisa R Kallenbach, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2 Industrial Blvd, Ste 110, Paoli, PA 19301
Phone: 610-725-0650    Fax: 610-725-9583

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.