Gregory Nelson, M.D.
NPI 1114174265 · Orthopaedic Surgery Physician · Bridgeton, MO
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Nelson, M.D. is a Orthopaedic Surgery Physician provider in Bridgeton, MO (NPI 1114174265).
Provider details
- NPI number
- 1114174265
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 49237 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Allopathic & Osteopathic Physicians
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
359 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) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 93 | $49 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 71 | $62 |
| X-Ray of Shoulder, Minimum of 2 Views73030 | 35 | $9 |
| X-Ray of Knee, 4 Or More Views73564 | 33 | $11 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 31 | $127 |
| X-Ray of Knee, 3 Views73562 | 24 | $9 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 165 | 102 |
| Celecoxib | 134 | 70 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 119 | 72 |
| Omeprazole | 37 | 33 |
| Diclofenac Sodium | 35 | 15 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 31 | 16 |
| Meloxicam | 24 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$270 across 5 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
Additional practice locations (1)
- 18444 N 25th AveSte 310Phoenix, AZ 85023-1266Phone: (623) 537-5600Fax: (866) 939-2673
Registry dates
- Enumerated
- 2008-08-20
- Last updated
- 2020-11-19
- Certified
- 2020-11-19
Frequently asked questions
- What is Gregory Nelson's NPI number?
- Gregory Nelson's National Provider Identifier (NPI) is 1114174265, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Nelson's specialty?
- Gregory Nelson is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Nelson located?
- Gregory Nelson's practice location on file with NPPES is 12349 De Paul Dr Ste 100, Bridgeton, MO 63044-2512.
- What is Gregory Nelson's phone number?
- The practice phone number listed in the NPPES registry for Gregory Nelson is (314) 291-7900.
- Does Gregory Nelson accept Medicare?
- Gregory Nelson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Nelson's NPI active?
- Yes — Gregory Nelson's NPI (1114174265) is active in the NPPES registry as of the last update on 2020-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.