Dominic Demarco, MD
NPI 1659957223 · Psychiatry Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dominic Demarco, MD is a Psychiatry Physician provider in Saint Louis, MO (NPI 1659957223).
Provider details
- NPI number
- 1659957223
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036175430 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 78 | 16 |
| Clonazepam | 72 | 13 |
| Aripiprazole | 67 | — |
| Fluoxetine Hcl | 45 | — |
| Quetiapine Fumarate | 42 | — |
| Mirtazapine | 42 | — |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$108 across 1 record (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
- 2021-03-23
- Last updated
- 2025-06-25
- Certified
- 2025-06-25
Frequently asked questions
- What is Dominic Demarco's NPI number?
- Dominic Demarco's National Provider Identifier (NPI) is 1659957223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dominic Demarco's specialty?
- Dominic Demarco is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Dominic Demarco located?
- Dominic Demarco's practice location on file with NPPES is 1438 S Grand Blvd, Saint Louis, MO 63104-1027.
- What is Dominic Demarco's phone number?
- The practice phone number listed in the NPPES registry for Dominic Demarco is (314) 977-4850.
- Does Dominic Demarco accept Medicare?
- Dominic Demarco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dominic Demarco's NPI active?
- Yes — Dominic Demarco's NPI (1659957223) is active in the NPPES registry as of the last update on 2025-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.