Physician Profile
Unclaimed ProfileAbout FIRSTENBERG
Based in Grapevine, TX, Barry Alan Firstenberg, DO is listed in the NPI registry under internal medicine. Barry graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1978. Barry is also listed as specialising in hematology & oncology.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Firstenberg?
Dr. Firstenberg is an internal medicine in Grapevine, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
What is Dr. Firstenberg's address?
Dr. Firstenberg is listed at 1631 LANCASTER DR STE 150, Grapevine, TX 76051. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Firstenberg?
The number on file is (817) 251-9080. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Firstenberg's NPI number?
Dr. Firstenberg's National Provider Identifier is 1215939764. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Firstenberg train?
Dr. Firstenberg attended At Still University of Health Sciences, College of Osteo Med, Kirksville, graduating in 1978. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Firstenberg been practising?
Dr. Firstenberg has 48 years experience. Calculated from a graduation year of 1978, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Firstenberg perform?
According to Medicare billing data, Dr. Firstenberg performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as administration of chemotherapy into vein, 1 hour or less and infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Firstenberg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Firstenberg. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (817) 251-9080
- Email not available
Practice Locations
1631 LANCASTER DR STE 150
Grapevine, TX 76051
Procedures Most Often Billed to Medicare
48,713 services · 2,080 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
693 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
326 |
| Infusion into a vein for therapy, prevention, or diagnosis, additional sequential infusion, 1 hour or less | Treatment | 96367 |
256 |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
143 |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
19,700 |
| Injection, fosaprepitant, 1 mg | Drug given | J1453 |
5,700 |
| Injection, iron sucrose, 1 mg | Drug given | J1756 |
4,100 |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Drug given | J0881 |
3,620 |
| Injection, denosumab, 1 mg | Drug given | J0897 |
1,800 |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
1,325 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other internal medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other internal medicines in Grapevine 8
Same specialty, same city.
Trained at At Still University of Health Sciences, College of Osteo Med, Kirksville 8
Other providers in the same specialty who trained at the same institution.
Class of 1978 at At Still University of Health Sciences, College of Osteo Med, Kirksville 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in TX who bill this service to Medicare most often.
- Quest Diagnostics Clinical Laboratories INC
- Clinical Pathology Laboratories, INC.
- Quest Diagnostics Clinical Laboratories INC
- Laboratory Corporation of America
- Laboratory Corporation of America
- Lone Star Pathology PLLC
- Medical Clinic of Houston, LLP
- The University of Texas Southwestern Medical Center at Dallas
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.