Joseph O'Leary, MD
NPI 1376689992 · Psychiatry Physician · Reisterstown, MD
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph O'Leary, MD is a Psychiatry Physician provider in Reisterstown, MD (NPI 1376689992).
Provider details
- NPI number
- 1376689992
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0033845 (MD)
Specialties & taxonomies
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
4 documented practice locations
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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Aripiprazole | 14 |
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 no Part D record, 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
Additional practice locations (3)
- 3905 National Dr Ste 200Burtonsville, MD 20866-6143Phone: (443) 285-1004Fax: (769) 207-4025
- 10632 Little Patuxent Pkwy Ste 410Columbia, MD 21044-3252Phone: (443) 285-1004Fax: (769) 207-4025
- 1447 York Rd Ste 408Timonium, MD 21093-6084Phone: (443) 285-1004Fax: (769) 207-4025
Registry dates
- Enumerated
- 2007-01-30
- Last updated
- 2024-02-05
- Certified
- 2021-11-02
Frequently asked questions
- What is Joseph O'Leary's NPI number?
- Joseph O'Leary's National Provider Identifier (NPI) is 1376689992, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph O'Leary's specialty?
- Joseph O'Leary is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph O'Leary located?
- Joseph O'Leary's practice location on file with NPPES is 1737 Oakland Rd, Reisterstown, MD 21136-5920.
- What is Joseph O'Leary's phone number?
- The practice phone number listed in the NPPES registry for Joseph O'Leary is (443) 285-1004.
- Does Joseph O'Leary accept Medicare?
- Joseph O'Leary is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph O'Leary's NPI active?
- Yes — Joseph O'Leary's NPI (1376689992) is active in the NPPES registry as of the last update on 2024-02-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.