What is Kathryn O'Brien's NPI number?

Kathryn O'Brien's National Provider Identifier (NPI) is 1659094332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Kathryn O'Brien's specialty?

Kathryn O'Brien is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).

Where is Kathryn O'Brien located?

Kathryn O'Brien's practice location on file with NPPES is 23 Crossroads Dr Ste 300, Owings Mills, MD 21117-5443.

What is Kathryn O'Brien's phone number?

The practice phone number listed in the NPPES registry for Kathryn O'Brien is (410) 998-9133.

Is Kathryn O'Brien's NPI active?

Yes — Kathryn O'Brien's NPI (1659094332) is active in the NPPES registry as of the last update on 2026-01-27.

IndividualActive

Kathryn O'Brien, DPT

NPI 1659094332 · Physical Therapist · Owings Mills, MD

Kathryn O'Brien, DPT is a Physical Therapist provider in Owings Mills, MD (NPI 1659094332).

Provider details

NPI number: 1659094332
Entity type: Individual
Primary specialty: Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Credential: DPT
Sex: Female
Sole proprietor: Yes
License: PT61679920 (WA)

Specialties & taxonomies

Physical TherapistPrimary225100000XLicense 29161 (MD)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Physical Therapist225100000XLicense PT61679920 (WA)
Respiratory, Developmental, Rehabilitative and Restorative Service Providers

Profile Score

Established profile(64/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 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.

Practice location

23 Crossroads Dr Ste 300

Owings Mills, MD 21117-5443

Phone: (410) 998-9133

Fax: (410) 998-9155

Street-level locationGet directions

More MD providers

Mailing address

72a Phillips Rd

Newton, NJ 07860-5461

Additional practice locations (1)

2120 Mottman Rd Sw
Tumwater, WA 98512-7823
Phone: (360) 357-7466

Enumerated: 2022-09-19
Last updated: 2026-01-27
Certified: 2026-01-27

Frequently asked questions

What is Kathryn O'Brien's NPI number?: Kathryn O'Brien's National Provider Identifier (NPI) is 1659094332, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Kathryn O'Brien's specialty?: Kathryn O'Brien is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
Where is Kathryn O'Brien located?: Kathryn O'Brien's practice location on file with NPPES is 23 Crossroads Dr Ste 300, Owings Mills, MD 21117-5443.
What is Kathryn O'Brien's phone number?: The practice phone number listed in the NPPES registry for Kathryn O'Brien is (410) 998-9133.
Is Kathryn O'Brien's NPI active?: Yes — Kathryn O'Brien's NPI (1659094332) is active in the NPPES registry as of the last update on 2026-01-27.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.