Dr Gregory S Willis, DO - Medicare Gynecological Oncology in York, PA

Dr Gregory S Willis, DO is a medicare enrolled "Obstetrics & Gynecology - Gynecologic Oncology" physician in York, Pennsylvania. He went to University Of North Texas Hsc, College Of Osteopathic Med and graduated in 1994 and has 30 years of diverse experience with area of expertise as Gynecological Oncology. He is a member of the group practice Pinnacle Health Medical Services and his current practice location is 1703 Innovation Dr Ste 2001, York, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (717) 801-0739.

Dr Gregory S Willis is licensed to practice in Pennsylvania (license number OS009400L) 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 1184605677.

Contact Information

Dr Gregory S Willis, DO
1703 Innovation Dr Ste 2001,
York, PA 17408-8815
(717) 801-0739
(717) 801-0645



Physician's Profile

Full NameDr Gregory S Willis
GenderMale
SpecialityGynecological Oncology
Experience30 Years
Location1703 Innovation Dr Ste 2001, York, 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 Gregory S Willis attended and graduated from University Of North Texas Hsc, College Of Osteopathic Med in 1994
  NPI Data:
  • NPI Number: 1184605677
  • Provider Enumeration Date: 11/10/2005
  • Last Update Date: 01/23/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 0840335733
  • Enrollment ID: I20100916000721

Medical Identifiers

Medical identifiers for Dr Gregory S Willis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1184605677NPI-NPPES
001722360MedicaidPA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VX0201XObstetrics & Gynecology - Gynecologic Oncology OS009400L (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Pinnacle Health HospitalsHarrisburg, PAHospital
Upmc MemorialYork, PAHospital
Upmc Pinnacle HanoverHanover, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Pinnacle Health Medical Services7618960493942

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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 Gregory S Willis allows following entities to bill medicare on his behalf.
Entity NamePinnacle Health Medical Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932143427
PECOS PAC ID: 7618960493
Enrollment ID: O20040407000180

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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 Gregory S Willis 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 Gregory S Willis, DO
409 S 2nd St Ste 2f,
Harrisburg, PA 17104-1612

Ph: () -
Dr Gregory S Willis, DO
1703 Innovation Dr Ste 2001,
York, PA 17408-8815

Ph: (717) 801-0739

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Obstetrics & Gynecology Doctors in York, PA

Dr. Michael Paul Russo, MD
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 4222 Lincoln Hwy, York, PA 17406
Phone: 717-812-7800    Fax: 717-812-7811
Sumithra Jeganathan,
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 35 Monument Rd Ste 202, York, PA 17403
Phone: 717-851-2722    Fax: 717-851-3127
Dr. Jahnea Chanel Williams, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1001 S George St, York, PA 17403
Phone: 717-812-4602    Fax: 717-812-3499
Katherine Nicole Prowell, DO
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1693 S Queen St, York, PA 17403
Phone: 717-845-1621    
Dr. Norman F. Navarro, MD
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 1000 S George St, York, PA 17403
Phone: 717-851-2348    Fax: 717-851-2426
Kelley D. Clark, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 35 Monument Rd Ste 202, York, PA 17403
Phone: 717-851-2722    Fax: 717-851-3127
Dr. Gretchen Eh Makai, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 2860 Whiteford Rd Unit 1, York, PA 17402
Phone: 717-988-8170    Fax: 717-221-5398

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