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DR. GREGORY S WILLIS DO
NPI 1184605677
Obstetrics & Gynecology - Gynecologic Oncology in York, PA

Active since November 10, 2005PECOS EnrolledAccepts Medicare Assignment
82.54/100
CMS Quality Rating
1703 INNOVATION DR STE 2001, YORK, PA 17408(717) 801-0739(717) 801-0645 Get Directions Write a Review

NPPES record last updated: January 23, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 23, 2021, Sep 18, 2018, Dec 15, 2017 (3 updates tracked since 2017).

About Dr. Gregory S Willis Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. GREGORY S WILLIS DO (NPI 1184605677) is an individual gynecologic oncology provider in York, Pennsylvania, licensed in Pennsylvania (OS009400L) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Upmc Pinnacle Hospitals, and maintains a secondary practice location in Mechanicsburg.

NPPES Registry Identity

NPI1184605677
Entity TypeIndividualMale
Primary Taxonomy207VX0201X
Provider Legal NameDR. GREGORY S WILLISCredential: DO
Location Address1703 INNOVATION DR STE 2001York, PA 17408-8815
Mailing Address409 S 2nd St Ste 2fHarrisburg, PA 17104-1612
Phone(717) 801-0739
Fax(717) 801-0645
Sole ProprietorNo
Medical School CMSUniversity Of North Texas Hsc, College Of Osteopathic MedGraduated 1994
Enumeration DateNovember 10, 2005
Last NPPES UpdateJanuary 23, 20213 updates tracked since enumeration
NPPES CertifiedJanuary 23, 2021
✔ NPI 1184605677 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License✔ Licensed in PA · OS009400L
Definition
An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.
1703 INNOVATION DR STE 2001, York, PA 17408
Open in Google Maps ↗

Secondary Practice Location 1

Location 12035 Technology Pkwy Ste 201Mechanicsburg, PA 17050-9497 · Phone (717) 221-5940 · Fax (717) 233-1939

Other Identifiers 1

Medicaid001722360PA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory S Willis Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID840335733
PECOS Enrollment IDI20100916000721
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
120 services39 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
79 services54 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
31 services24 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
29 services29 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
28 services13 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Upmc Pinnacle Hospitals

Acute Care Hospitals · Harrisburg, PA
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390067
Location409 South Second StreetHarrisburg, PA 17104 · Dauphin County
Emergency services Birthing friendly

Upmc Memorial

Acute Care Hospitals · York, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390101
Location1701 Innovation DriveYork, PA 17408 · York County
Emergency services Birthing friendly

Upmc Hanover

Acute Care Hospitals · Hanover, PA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number390233
Location300 Highland AveHanover, PA 17331 · York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 17408 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$166.87 typical visit price
range $54.64 – $166.87
Typical copayment $41.71 (range $13.66 – $41.71)
Most-billed visit code 99205
Established Patient
$96.82 typical visit price
range $17.33 – $135.84
Typical copayment $24.20 (range $4.33 – $33.96)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.54/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality76.62
Promoting Interoperability100
Improvement Activities40
Cost65.18

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALEXIS MORROW PA-C
Physician Assistant
1703 INNOVATION DR STE 2001
YORK, PA 17408
York County (717) 801-0765
LEAH CREAM MD
Internal Medicine (Medical Oncology)
1703 INNOVATION DR STE 2001
YORK, PA 17408
York County (717) 801-0765
MRS. JULIE JUSTICE KLUNK CRNP
Nurse Practitioner (Family)
1703 INNOVATION DR STE 2001
YORK, PA 17408
York County (717) 801-0739
DR. SHANI NAJUMA GUNNING-CARTER MD
Internal Medicine (Medical Oncology)
1703 INNOVATION DR STE 2001
YORK, PA 17408
York County (717) 801-0765
KIMBERLY W. SCHLESINGER M.D.
Internal Medicine (Medical Oncology)
1703 INNOVATION DR STE 2001
YORK, PA 17408
York County (717) 801-0765

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Willis's NPI number?

The NPI number for Gregory Willis is 1184605677. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Where is Gregory Willis located?

Gregory Willis practices at 1703 Innovation Dr Ste 2001, York, PA 17408. The listed phone number is (717) 801-0739.

What is Gregory Willis's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Gregory Willis enrolled in Medicare?

Yes. Gregory Willis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Gregory Willis affiliated with any hospitals?

According to CMS data, Gregory Willis is affiliated with Upmc Pinnacle Hospitals, Upmc Memorial and Upmc Hanover.

When was this NPI record last updated?

The NPPES record for Gregory Willis was last updated on January 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.