NPPES file of Aug 9, 2026

Kathryn Patricia O'Brien, DPT

Physical Therapist · Owings Mills, MD

Kathryn Patricia O'Brien, DPT is a physical therapist with a practice address in Owings Mills, Maryland, and NPI 1659094332, issued on Sep 19, 2022. Check the license (Maryland 29161, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659094332
Name
Kathryn Patricia O'Brien
Credential
DPT
Primary taxonomy
Physical Therapist 225100000X
License numbers
29161 MD
PT61679920 WA
Self-reported in NPPES; status is on the state search
Practice location
23 Crossroads Dr Ste 300, Owings Mills, MD 21117
Phone
(410) 998-9133
Enumerated
Sep 19, 2022
Record last updated
Jan 27, 2026
Fax
(410) 998-9155
Medicare enrollment
Enrolled (PECOS I20260422001435); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 23 Crossroads Dr Ste 300

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Sarah Flanders, MSPTPhysical Therapist1306832977
  2. Yisrael Levine, DPTPhysical Therapist1922792571

Verify Kathryn Patricia O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Maryland board licenses this profession
    Search for license 29161
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Life Fitness Physical Therapy LLCOwings Mills, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathryn Patricia O'Brien among 6,177 physical therapist records in Maryland

Kathryn Patricia O'Brien, DPT is one of 6,177 physical therapist records with a practice address in Maryland. 36% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 83% of them.

  • NPI issued2022 · 83% of these records are older, 13% newer
  • In a Medicare fileYes · 36% of these records are
  • In the CMS Doctors and Clinicians fileYes · 38% of these records are
  • Graduated2022 · median 2015 among the 2,359 with a school on file
  • Record last updated2026 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

65 physical therapist records list a practice address in Owings Mills

They are 65 of the 1,586 NPPES records with a practice address in Owings Mills, and 6,177 physical therapist records in Maryland.

The 8 physical therapist records with the nearest ZIP codes

  1. Michael Ariete, P.T.Owings Mills, MD 211171366541617
  2. Michelle BlackOwings Mills, MD 211171508964396
  3. Gail Chambers, PTOwings Mills, MD 211171255456273
  4. Scott Coon, PT MTC CFMTOwings Mills, MD 211171942247515
  5. Joan Fairbank, PTOwings Mills, MD 211171588635197
  6. Ian Fischer, MPTOwings Mills, MD 211171063515849
  7. Sarah Flanders, MSPTOwings Mills, MD 211171306832977
  8. Brian Lerman, D.C.Owings Mills, MD 211171861428666

Common questions

What is Kathryn Patricia O'Brien, DPT's NPI number?

Kathryn Patricia O'Brien, DPT's National Provider Identifier (NPI) is 1659094332, issued on Sep 19, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Kathryn Patricia O'Brien, DPT located?

The NPPES record lists a practice address at 23 Crossroads Dr Ste 300, Owings Mills, MD, 21117. Phone: (410) 998-9133. Providers update this record themselves, so call before visiting.

How can I verify Kathryn Patricia O'Brien, DPT's license?

NPPES lists Maryland license number 29161, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.