Gregory Stynowick, MD
NPI 1437256542 · Pain Medicine Physician · Florissant, MO
Enrolled with Medicare as Practitioner - Interventional Pain Management · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Stynowick, MD is a Pain Medicine Physician provider in Florissant, MO (NPI 1437256542).
Provider details
- NPI number
- 1437256542
- Entity type
- Individual
- Primary specialty
- Pain Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2004001665 (MO)
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
19 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
2,159 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,185 | $81 |
| Injection of Anesthetic And/Or Steroid Drug Into Sacral Spine Nerve Root Using Imaging Guidance, Single Level64483 | 127 | $134 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 98 | $77 |
| Destruction of Lower Or Sacral Spinal Facet Joint Nerves Using Imaging Guidance, Single Facet Joint64635 | 82 | $244 |
| Destruction of Lower Or Sacral Spinal Facet Joint Nerves Using Imaging Guidance, Each Additional Facet Joint64636 | 82 | $74 |
| Fluoroscopic Guidance for Needle Placement |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 1,137 | 133 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 717 | 74 |
| Gabapentin | 300 | 46 |
| Oxycodone Hcl | 291 | 28 |
| Alprazolam | 174 | 84 |
| Hydromorphone Hcl | 152 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,805 across 63 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
- 2006-09-20
- Last updated
- 2021-03-26
- Certified
- 2021-03-26
Frequently asked questions
- What is Gregory Stynowick's NPI number?
- Gregory Stynowick's National Provider Identifier (NPI) is 1437256542, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Stynowick's specialty?
- Gregory Stynowick is listed in the NPPES registry with a primary specialty of Pain Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Stynowick located?
- Gregory Stynowick's practice location on file with NPPES is 6829 Parker Rd Ste a, Florissant, MO 63033-5311.
- What is Gregory Stynowick's phone number?
- The practice phone number listed in the NPPES registry for Gregory Stynowick is (314) 741-2700.
- Does Gregory Stynowick accept Medicare?
- Gregory Stynowick is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Stynowick's NPI active?
- Yes — Gregory Stynowick's NPI (1437256542) is active in the NPPES registry as of the last update on 2021-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.