Gregory Billy, MD
NPI 1164486155 · Physical Medicine & Rehabilitation Physician · State College, PA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Billy, MD is a Physical Medicine & Rehabilitation Physician provider in State College, PA (NPI 1164486155).
Provider details
- NPI number
- 1164486155
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD061958L (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
339 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 102 | $241 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 83 | $85 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 73 | $53 |
| Injection of Anesthetic Or Steroid Into Joint Between Lower Spine and Hip Bone Using Imaging Guidance27096 | 28 | $179 |
| Injection of Lower Or Sacral Spine Facet Joint Using Imaging Guidance, Single Level64493 | 28 | $216 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 585 | 104 |
| Methocarbamol | 124 | 30 |
| Baclofen | 63 | 14 |
| Amitriptyline Hcl | 54 | 14 |
| Diclofenac Sodium | 50 | — |
| Prednisone | 48 | 42 |
| Cyclobenzaprine Hcl | 39 | — |
| Duloxetine Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-14
- Last updated
- 2025-07-16
- Certified
- 2025-07-03
Frequently asked questions
- What is Gregory Billy's NPI number?
- Gregory Billy's National Provider Identifier (NPI) is 1164486155, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Billy's specialty?
- Gregory Billy is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Billy located?
- Gregory Billy's practice location on file with NPPES is 143 Hospital Drive, State College, PA 16803-6706.
- What is Gregory Billy's phone number?
- The practice phone number listed in the NPPES registry for Gregory Billy is (800) 233-4082.
- Does Gregory Billy accept Medicare?
- Gregory Billy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Billy's NPI active?
- Yes — Gregory Billy's NPI (1164486155) is active in the NPPES registry as of the last update on 2025-07-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.