Gregory Mattingly, M.D.
NPI 1215933379 · Psychiatry Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Mattingly, M.D. is a Psychiatry Physician provider in Saint Charles, MO (NPI 1215933379).
Provider details
- NPI number
- 1215933379
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 102964 (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
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
428 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 | 165 | $117 |
| Psychotherapy With Evaluation and Management Visit, 30 Minutes90833 | 126 | $68 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 78 | $82 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 22 | $159 |
| Psychiatric Diagnostic Evaluation With Medical Services90792 | 20 | $188 |
| Psychiatric Services Complicated By Communication Factor90785 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 77 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 499 | 89 |
| Clonazepam | 320 | 59 |
| Lorazepam | 295 | 65 |
| Bupropion Hclbrand: Bupropion Xl | 276 | 48 |
| Trazodone Hcl | 234 | 50 |
| Quetiapine Fumarate | 222 | 39 |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$827,012 across 821 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
- 2005-06-23
- Last updated
- 2017-01-26
Frequently asked questions
- What is Gregory Mattingly's NPI number?
- Gregory Mattingly's National Provider Identifier (NPI) is 1215933379, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Mattingly's specialty?
- Gregory Mattingly is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Mattingly located?
- Gregory Mattingly's practice location on file with NPPES is 330 1st Capitol Dr, Saint Charles, MO 63301-2852.
- What is Gregory Mattingly's phone number?
- The practice phone number listed in the NPPES registry for Gregory Mattingly is (636) 949-5760.
- Does Gregory Mattingly accept Medicare?
- Gregory Mattingly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Mattingly's NPI active?
- Yes — Gregory Mattingly's NPI (1215933379) is active in the NPPES registry as of the last update on 2017-01-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.