NPPES file of Aug 9, 2026

Steven J. O'Connor, M.D.

Anatomic Pathology & Clinical Pathology Physician · Houston, TX

Steven J. O'Connor, M.D. is an anatomic pathology & clinical pathology physician with a practice address in Houston, Texas, and NPI 1245238708, issued on Jul 8, 2005. Check the license (Texas J5851, as entered in NPPES) on the Texas Medical Board; 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
1245238708
Name
Steven J. O'Connor
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
J5851 TX
Self-reported in NPPES; status is on the state search
Practice location
2525 West Bellfort Street, Houston, TX 77054
Phone
(713) 741-6677
Enumerated
Jul 8, 2005
Record last updated
Mar 13, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(713) 748-5860
Medicare enrollment
Enrolled (PECOS I20051221000151); accepts Medicare assignment
Medical or professional school
University Of Nebraska College Of Medicine, 1989
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 2525 West Bellfort Street

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

  1. Robyn Beach, M.D.Anatomic Pathology & Clinical Pathology Physician1851371512
  2. Kyle Eskue, M.D.Anatomic Pathology & Clinical Pathology Physician1619172293
  3. Sarah Galfione, M.D.Anatomic Pathology & Clinical Pathology Physician1770729758
  4. Yan Gu, M.D.Anatomic Pathology & Clinical Pathology Physician1568460475
  5. Gary Hollingsworth, M.D.Anatomic Pathology & Clinical Pathology Physician1265439665
  6. Mary Kling, M.D.Anatomic Pathology & Clinical Pathology Physician1124295092

Verify Steven J. O'Connor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license J5851
    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
Open the Texas 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. Brown And Associates Medical Laboratories LLPRichmond, TX

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

Steven J. O'Connor among 1,424 anatomic pathology & clinical pathology physician records in Texas

Steven J. O'Connor, M.D. is one of 1,424 anatomic pathology & clinical pathology physician records with a practice address in Texas. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1989 · median 2001 among the 864 with a school on file
  • Record last updated2018 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Texas

There are 1,424 anatomic pathology & clinical pathology physician records in Texas.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Maday Dargan, M.D.Houston, TX 770541306842422
  2. Gerard Del Junco, M.D.Houston, TX 770541235136623
  3. Michael Farr, M.D.Houston, TX 770541558366948
  4. Joe Ford, M.D.Houston, TX 770541497752406
  5. Pamela Holder, M.D.Houston, TX 770541912904319
  6. Gary Hollingsworth, M.D.Houston, TX 770541265439665
  7. Edward Kott, M.D.Houston, TX 770541144227547
  8. Humberto Lara, M.D.Houston, TX 770541023015328

Common questions

What is Steven J. O'Connor, M.D.'s NPI number?

Steven J. O'Connor, M.D.'s National Provider Identifier (NPI) is 1245238708, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Steven J. O'Connor, M.D. located?

The NPPES record lists a practice address at 2525 West Bellfort Street, Houston, TX, 77054. Phone: (713) 741-6677. Providers update this record themselves, so call before visiting.

How can I verify Steven J. O'Connor, M.D.'s license?

NPPES lists Texas license number J5851, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. 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), 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.