Diana Mata, D.O.
NPI 1821354242 · Psychiatry Physician · Rockville, MD
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diana Mata, D.O. is a Psychiatry Physician provider in Rockville, MD (NPI 1821354242).
Provider details
- NPI number
- 1821354242
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0102204830 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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 · 32 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Quetiapine Fumarate | 135 |
| Aripiprazole | 77 |
| Lamotrigine | 54 |
| Trazodone Hcl | 50 |
| Divalproex Sodium | 45 |
| Haloperidol | 44 |
| Benztropine Mesylate | 42 |
| Bupropion Hclbrand: Bupropion Xl | 41 |
| Divalproex Sodiumbrand: Divalproex Sodium Er | 40 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$109 across 5 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
Additional practice locations (2)
- 3800 Reservoir Rd NwDepartment of PsychiatryWashington, DC 20007-2113Phone: (202) 944-5400Fax: (202) 944-5402
- 8119 Holland RdAlexandria, VA 22306-3135Phone: (703) 360-6910
Registry dates
- Enumerated
- 2012-04-10
- Last updated
- 2022-07-21
Frequently asked questions
- What is Diana Mata's NPI number?
- Diana Mata's National Provider Identifier (NPI) is 1821354242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diana Mata's specialty?
- Diana Mata is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Diana Mata located?
- Diana Mata's practice location on file with NPPES is 15000 Broschart Rd, Rockville, MD 20850-3303.
- What is Diana Mata's phone number?
- The practice phone number listed in the NPPES registry for Diana Mata is (301) 251-6900.
- Does Diana Mata accept Medicare?
- Diana Mata is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diana Mata's NPI active?
- Yes — Diana Mata's NPI (1821354242) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.