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Edit this profileWhere to find Gregory S. Willis, DO
- York location main office
1703 Innovation Dr Ste 2001, York, PA 17408 - Mechanicsburg location
2035 Technology Pkwy Ste 201, Mechanicsburg, PA 17050
About Dr. Willis
Gregory S. Willis, DO practices gynecologic oncology in York, PA. Gregory is a 1994 graduate of University of North Texas Hsc, College of Osteopathic Med. Medicare claims data shows Gregory provided 299 services to 171 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1184605677.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (717) 801-0739
- Email not available
Practice Locations
1703 INNOVATION DR STE 2001
York, PA 17408
2035 Technology Pkwy Ste 201
Mechanicsburg, PA 17050
Procedures Most Often Billed to Medicare
299 services · 171 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
120 | More often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
79 | More often than most peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
31 | More often than most peers in Gynecologic Oncology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
29 | As often as other peers in Gynecologic Oncology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
28 | More often than most peers in Gynecologic Oncology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
12 | Less often than most peers in Gynecologic Oncology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gynecologic oncology specialists in York 3
Same specialty, same city.
Trained at University of North Texas Hsc, College of Osteopathic Med 3
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1994 at University of North Texas Hsc, College of Osteopathic Med 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Willis's specialty?
Dr. Willis is a gynecologic oncology in York, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Willis?
Dr. Willis is listed at 1703 Innovation Dr Ste 2001, York, PA 17408. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Willis?
The number on file is (717) 801-0739. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Willis?
Dr. Willis's National Provider Identifier is 1184605677. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Willis's medical education?
Dr. Willis attended University of North Texas Hsc, College of Osteopathic Med, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Willis have?
Dr. Willis has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Willis known for?
According to Medicare billing data, Dr. Willis the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Willis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Willis. If this is you, claiming it is free.
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