Marguerite Brown, MD
NPI 1447328133 · Child & Adolescent Psychiatry Physician · Ridgefield, CT
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marguerite Brown, MD is a Child & Adolescent Psychiatry Physician provider in Ridgefield, CT (NPI 1447328133).
Provider details
- NPI number
- 1447328133
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 00026199 (AL)
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 tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 16 |
| Metoprolol Succinate | 14 |
| Lurasidone Hcl | 14 |
| Clozapine | 14 |
| Pantoprazole Sodium | 14 |
| Haloperidol | 13 |
| Lithium Carbonatebrand: Lithium Carbonate Er | 13 |
| Metformin Hcl | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2022-09-29
- Certified
- 2022-09-29
Frequently asked questions
- What is Marguerite Brown's NPI number?
- Marguerite Brown's National Provider Identifier (NPI) is 1447328133, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marguerite Brown's specialty?
- Marguerite Brown is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Marguerite Brown located?
- Marguerite Brown's practice location on file with NPPES is 383 Main St Ste 2, Ridgefield, CT 06877-4652.
- What is Marguerite Brown's phone number?
- The practice phone number listed in the NPPES registry for Marguerite Brown is (203) 939-7910.
- Does Marguerite Brown accept Medicare?
- Marguerite Brown is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marguerite Brown's NPI active?
- Yes — Marguerite Brown's NPI (1447328133) is active in the NPPES registry as of the last update on 2022-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.