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

Barry Alan Firstenberg, DO

Individual provider Hematology & Oncology Physician · NPI 1215939764

Barry Alan Firstenberg, DO is an Internal Medicine in Grapevine, Texas. Graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1978, 48 years ago. Practices with Texas Oncology PA, a 1,005-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
48
Trained at
At Still University of Health Sciences, College of Osteo Med, Kirksville
Licensed in
TX
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1631 Lancaster Dr Ste 150
Grapevine, TX 76051-3586
Phone: (817) 251-9080
Fax: (817) 251-9082
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G6294 (TX)

Record details

NPI number1215939764
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 15, 2005
Last updated in NPPESNovember 16, 2021
Certification dateNovember 16, 2021
Mailing addressPo Box 911242, Dallas, TX 75391-1242

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolAT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Graduated 1978 (48 years in practice)
Group practice Texas Oncology Pa — 1005 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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