Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mary Elizabeth Hienaman, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1841291721

Dr. Mary Elizabeth Hienaman, MD is an Obstetrics/Gynecology in Houston, Texas. Graduated from Texas Tech University Health Science Center School of Medicine in 1990, 36 years ago. Practices with Byron B Holt MD PA, a 3-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
36
Trained at
Texas Tech University Health Science Center School of Medicine
Licensed in
TX
In the registry since
2005
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

929 Gessner Rd Ste 2225
Houston, TX 77024-2501
Phone: (713) 365-2900
Fax: (713) 984-6525
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence H9993 (TX)

Record details

NPI number1841291721
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 2, 2005
Last updated in NPPESApril 20, 2022
Certification dateApril 20, 2022

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolTEXAS TECH UNIVERSITY HEALTH SCIENCE CENTER SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Byron B Holt Md Pa — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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