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JOSEPH H. O'LEARY MD
NPI 1376689992
Psychiatry & Neurology - Psychiatry in Reisterstown, MD

Active since January 30, 2007PECOS Enrolled
1737 OAKLAND RD, REISTERSTOWN, MD 21136(443) 285-1004(769) 207-4025 Get Directions Write a Review

NPPES record last updated: February 5, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 5, 2024, Jan 13, 2021 (2 updates tracked since 2021).

About Joseph H. O'leary Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSEPH H. O'LEARY MD (NPI 1376689992) is an individual psychiatry provider in Reisterstown, Maryland, licensed in Maryland (D0033845) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1376689992
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameJOSEPH H. O'LEARYCredential: MD
Location Address1737 OAKLAND RDReisterstown, MD 21136-5920
Mailing Address1737 Oakland RdReisterstown, MD 21136-5920 · (443) 281-1004 · Fax (769) 207-4025
Phone(443) 285-1004
Fax(769) 207-4025
Sole ProprietorYes
Enumeration DateJanuary 30, 2007
Last NPPES UpdateFebruary 5, 20242 updates tracked since enumeration
NPPES CertifiedNovember 2, 2021
✔ NPI 1376689992 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MD · D0033845
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
1737 OAKLAND RD, Reisterstown, MD 21136
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Secondary Practice Locations 3

Location 110632 Little Patuxent Pkwy Ste 410Columbia, MD 21044-3252 · Phone (443) 285-1004 · Fax (769) 207-4025
Location 21447 York Rd Ste 408Timonium, MD 21093-6084 · Phone (443) 285-1004 · Fax (769) 207-4025
Location 33905 National Dr Ste 200Burtonsville, MD 20866-6143 · Phone (443) 285-1004 · Fax (769) 207-4025

Other Identifiers 1

Medicaid38323-1700MD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joseph H. O'leary Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Joseph O'leary reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Harwood Behavioral Health II LLC
15 mi
Mental Health (Including Community Mental Health Center)
428 E 25TH ST
Baltimore, MD 21218
  • Reassigned Medicare billing, Delaware enrollment
  • 2 clinicians in this Medicare group
NPI 1225544810 (240) 813-9867

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21136 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$183.44 typical visit price
range $60.73 – $183.44
Typical copayment $45.86 (range $15.18 – $45.86)
Most-billed visit code 99205
Established Patient
$75.47 typical visit price
range $19.60 – $149.17
Typical copayment $18.86 (range $4.90 – $37.29)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph O'leary's NPI number?

The NPI number for Joseph O'leary is 1376689992. It was assigned to this individual provider in the NPPES registry on January 30, 2007.

Where is Joseph O'leary located?

Joseph O'leary practices at 1737 Oakland Rd, Reisterstown, MD 21136. The listed phone number is (443) 285-1004.

What is Joseph O'leary's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Joseph O'leary enrolled in Medicare?

Yes. Joseph O'leary is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joseph O'leary's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joseph O'leary reassigns Medicare benefits to Harwood Behavioral Health II LLC (Baltimore, MD). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joseph O'leary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joseph O'leary was last updated on February 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.