NPPES file of Aug 9, 2026

Barry Alan Firstenberg, DO

Hematology & Oncology Physician · Grapevine, TX

Barry Alan Firstenberg, DO is a hematology & oncology physician with a practice address in Grapevine, Texas, and NPI 1215939764, issued on Aug 15, 2005. Check the license (Texas G6294, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215939764
Name
Barry Alan Firstenberg
Credential
DO
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
G6294 TX
Self-reported in NPPES; status is on the state search
Practice location
1631 Lancaster Dr Ste 150, Grapevine, TX 76051
Phone
(817) 251-9080
Enumerated
Aug 15, 2005
Record last updated
Nov 16, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(817) 251-9082
Medicaid IDs
115782814 TX
115782813 TX
115782812 TX
115782811 TX
Medicare enrollment
Enrolled (PECOS I20040615000827); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1978
Telehealth
Offers telehealth (CMS)
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 1631 Lancaster Dr Ste 150

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

  1. Kristina Longo, FNP-CFamily Nurse Practitioner1396089967
  2. Mary Sutton, NPNurse Practitioner1124198411
  3. Ivey Walker, FNP-CFamily Nurse Practitioner1215678487

Verify Barry Alan Firstenberg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license G6294
    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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5% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

836 Medicare Part D claims for 138 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 57 claims were for opioids.

  1. Barry Firstenberg836
  2. Specialty average877

Most prescribed

  1. Levothyroxine Sodium53 claims
  2. Anastrozole47 claims
  3. Venclexta38 claims
  4. Eliquis34 claims
  5. Dexamethasone32 claims
  6. Prednisone30 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The MIPS final score for 2023 (Medicare payment program): 89.4 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.9
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,640.71

69 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Barry Firstenberg$1,640.71
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Texas Oncology PAGrapevine, TX

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

Barry Alan Firstenberg among 922 hematology & oncology physician records in Texas

Barry Alan Firstenberg, DO is one of 922 hematology & oncology physician records with a practice address in Texas. 87% 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, 93% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated1978 · median 2004 among the 691 with a school on file
  • Record last updated2021 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Texas

There are 922 hematology & oncology physician records in Texas.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Vikas Aurora, MDGrapevine, TX 760511033309240
  2. Heidi Jordan, MDGrapevine, TX 760511386603744
  3. Bilal Salame, M.DMansfield, TX 760631265850473
  4. Phillip Saunders, D.O.Mansfield, TX 760631144578683
  5. Muhammad Azharuddin, M.D.Cleburne, TX 760331669867024
  6. Sandhya Bejjanki, M.D.Cleburne, TX 760331205037488
  7. David Gregorio, DOCleburne, TX 760331225561954
  8. Rohan Gupta, DOBurleson, TX 760281326482860

Common questions

What is Barry Alan Firstenberg, DO's NPI number?

Barry Alan Firstenberg, DO's National Provider Identifier (NPI) is 1215939764, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Barry Alan Firstenberg, DO located?

The NPPES record lists a practice address at 1631 Lancaster Dr Ste 150, Grapevine, TX, 76051. Phone: (817) 251-9080. Providers update this record themselves, so call before visiting.

How can I verify Barry Alan Firstenberg, DO's license?

NPPES lists Texas license number G6294, 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.

How much does Barry Alan Firstenberg, DO prescribe under Medicare Part D?

In 2024, Barry Alan Firstenberg, DO had 836 Medicare Part D claims for 138 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is Barry Alan Firstenberg, DO's MIPS final score?

The 2023 MIPS final score is 89.4 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.