Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mary Ostrowski, MD

Individual provider Cytopathology Physician · NPI 1174528418

Mary Ostrowski, MD practises Pathology in Conroe, Texas. Graduated from Tufts University School of Medicine in 1980, 46 years ago. Practices with Baylor College of Medicine, a 51-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
46
Trained at
Tufts University School of Medicine
Licensed in
TX
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

504 Medical Center Blvd
Conroe, TX 77304-2808 Not confirmed with CMS for 17 years — call before visiting
Phone: (713) 481-3544
Fax: (713) 432-0221
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence J1341 (TX)
Cytopathology Physician Taxonomy 207ZC0500X · Licence J1341 (TX)

Record details

NPI number1174528418
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2005
Last updated in NPPESMarch 19, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1980 (46 years in practice)
Group practice Baylor College Of Medicine — 51 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $47 3 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Baylor College of Medicine

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 51 clinicians in the practice; 12 are shown here.

Other providers in Conroe