Gregory Decker, MD
NPI 1437564614 · Physical Medicine & Rehabilitation Physician · Chesterfield, MO
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Decker, MD is a Physical Medicine & Rehabilitation Physician provider in Chesterfield, MO (NPI 1437564614).
Provider details
- NPI number
- 1437564614
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2019017094 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
1,071 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 | 219 | $122 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 148 | $62 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 100 | $161 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 88 | $87 |
| Fluoroscopic Guidance for Needle Placement77002 | 79 | $25 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 192 | 65 |
| Meloxicam | 154 | 67 |
| Pregabalin | 102 | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 96 | 38 |
| Methylprednisolone | 42 | 35 |
| Cyclobenzaprine Hcl | 30 | — |
| Tramadol Hcl | 29 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,405 across 9 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
- 2014-06-25
- Last updated
- 2025-04-17
- Certified
- 2021-12-10
Frequently asked questions
- What is Gregory Decker's NPI number?
- Gregory Decker's National Provider Identifier (NPI) is 1437564614, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Decker's specialty?
- Gregory Decker is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Decker located?
- Gregory Decker's practice location on file with NPPES is 14532 S Outer 40 Rd, Chesterfield, MO 63017-5705.
- What is Gregory Decker's phone number?
- The practice phone number listed in the NPPES registry for Gregory Decker is (314) 514-3500.
- Does Gregory Decker accept Medicare?
- Gregory Decker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Decker's NPI active?
- Yes — Gregory Decker's NPI (1437564614) is active in the NPPES registry as of the last update on 2025-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.