William Paul Greissinger, DO - Medicare Emergency Medicine in Erie, PA

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William Paul Greissinger, DO is a medicare enrolled "Emergency Medicine" physician in Erie, Pennsylvania. His current practice location is 4950 Buffalo Rd, Erie, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (814) 898-2576.

William Paul Greissinger is licensed to practice in Pennsylvania (license number OS008805L) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1194700641.

Contact Information

William Paul Greissinger, DO
4950 Buffalo Rd,
Erie, PA 16510-2304
(814) 898-2576
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Paul Greissinger
GenderMale
SpecialityEmergency Medicine
Location4950 Buffalo Rd, Erie, Pennsylvania
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1194700641
  • Provider Enumeration Date: 12/07/2005
  • Last Update Date: 10/06/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7315918620
  • Enrollment ID: I20040802000907

Medical Identifiers

Medical identifiers for William Paul Greissinger such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1194700641NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine OS008805L (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. William Paul Greissinger allows following entities to bill medicare on his behalf.
Entity NameSt Vincent Medical Education And Research Institute Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902881477
PECOS PAC ID: 3870405137
Enrollment ID: O20031104000576
Entity NameVein Institute Of Pittsburgh, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1972754521
PECOS PAC ID: 6608939863
Enrollment ID: O20090114000237
Entity NameAhn Emergency Group Of Erie County Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336564798
PECOS PAC ID: 3072746585
Enrollment ID: O20140508000746
Entity NameAhn Observation Group, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437814696
PECOS PAC ID: 1557753811
Enrollment ID: O20220118001466

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. William Paul Greissinger 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
William Paul Greissinger, DO
4950 Buffalo Rd,
Erie, PA 16510-2304

Ph: (814) 898-2576		William Paul Greissinger, DO
4950 Buffalo Rd,
Erie, PA 16510-2304

Ph: (814) 898-2576

Reviews and Comments


Emergency Medicine Doctors in Erie, PA

Dr. James Pawlak Iii, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 201 State St, Erie, PA 16550
Phone: 814-864-4031    
Dr. Kevin A Andryc, DO
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Practice Location: 201 State St, Erie, PA 16550
Phone: 814-877-6000    Fax: 814-877-4010
Jonathan Miller,
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Practice Location: 201 State St, Erie, PA 16550
Phone: 814-877-6139    
Susan E Robbins, DO
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Medicare: Medicare Enrolled
Practice Location: 7200 Peach St, Epn/hamot Urgent Care-upmc Unit 16, Erie, PA 16509
Phone: 814-860-3301    
Dr. Timothy Cheslock, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 232 W 25th St, Erie, PA 16544
Phone: 814-734-1618    Fax: 814-734-3102
Caroline A Colleran, D.O.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 4950 Buffalo Rd, Erie, PA 16510
Phone: 814-898-2576    Fax: 570-644-4241
Jacob Cauvel, DO
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 201 State St, Erie, PA 16550
Phone: 814-877-6000    

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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