Kathryn O'Brien, D.O.
Nephrology Physician · Pittsburgh, PA
Kathryn O'Brien, D.O. is a nephrology physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1235630856, issued on Feb 28, 2018. Check the license (Pennsylvania OS022159, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kathryn O'Brien
- Credential
- D.O.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- OS022159 PA
Self-reported in NPPES; status is on the state search - Practice location
- 200 Lothrop St, Pittsburgh, PA 15213
- Phone
- (412) 802-3043
- Enumerated
- Feb 28, 2018
- Entity
- Type 1 · individual
Also registered at 200 Lothrop St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amy AbbottCertified Registered Nurse Anesthetist1689943490
- Bisan Abboud, MDStudent in an Organized Health Care Education/Training Program1588359434
- Othman Abdul-MalakVascular Surgery Physician1003285602
- Mohamed Abdullah, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1164001277
- Raed Abdullah, MDSpecialist1962474353
- Michael Abesamis, M.D.Emergency Medicine Physician1467647958
Verify Kathryn O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS022159Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Nephrology Physician providers in Pennsylvania
There are 537 nephrology physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other nephrology physician records in Pennsylvania
- Mohamed Anwar Abdus Samad, MDYork, PA1285983684
- Samer Abou Chehade, M.DErie, PA1730744020
- Blaise AbramovitzPittsburgh, PA1093150922
- Parvaneh Abtahi, MDWyomissing, PA1245213099
- Azza AbubakerPhiladelphia, PA1821732298
- Scott Adler, MDPhiladelphia, PA1295986792
- Sandeep Aggarwal, M.D.Philadelphia, PA1548420326
- Gautam Agrawal, M.D , M.P.HGreensburg, PA1063737070
- Muhammad AhmedHershey, PA1457030033
- Siraj Ahmed, MDAllentown, PA1104748656
Common questions
What is Kathryn O'Brien, D.O.'s NPI number?
Kathryn O'Brien, D.O.'s National Provider Identifier (NPI) is 1235630856, issued on Feb 28, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn O'Brien, D.O. located?
The NPPES record lists a practice address at 200 Lothrop St, Pittsburgh, PA, 15213. Phone: (412) 802-3043. Providers update this record themselves, so call before visiting.
How can I verify Kathryn O'Brien, D.O.'s license?
NPPES lists Pennsylvania license number OS022159, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.