Gregory Keller, M.D.
NPI 1285638965 · Orthopaedic Surgery of the Spine Physician · Jacksonville, FL
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Keller, M.D. is a Orthopaedic Surgery of the Spine Physician provider in Jacksonville, FL (NPI 1285638965).
Provider details
- NPI number
- 1285638965
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery of the Spine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME62258 (FL)
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 tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,580 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 348 | $132 |
| X-Ray of Lower and Sacral Spine, 2-3 Views72100 | 222 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 156 | $94 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 112 | $58 |
| Injection of Contrast for Imaging of Each Level of Lower Spine62290 | 78 | $343 |
| Review By Radiologist of Disc of Lower Spine Image72295 | 75 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 89 | 38 |
| Tramadol Hcl | 55 | 45 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 36 | 29 |
| Diazepam | 29 | 16 |
| Methylprednisolone | 23 | 22 |
| Pregabalin | 23 | — |
| Methocarbamol | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$145 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-09
- Last updated
- 2021-03-25
- Certified
- 2021-03-25
Frequently asked questions
- What is Gregory Keller's NPI number?
- Gregory Keller's National Provider Identifier (NPI) is 1285638965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Keller's specialty?
- Gregory Keller is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery of the Spine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Keller located?
- Gregory Keller's practice location on file with NPPES is 1325 San Marco Blvd Ste 200, Jacksonville, FL 32207-8566.
- What is Gregory Keller's phone number?
- The practice phone number listed in the NPPES registry for Gregory Keller is (904) 346-3465.
- Does Gregory Keller accept Medicare?
- Gregory Keller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Keller's NPI active?
- Yes — Gregory Keller's NPI (1285638965) is active in the NPPES registry as of the last update on 2021-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.