NPPES file of Aug 9, 2026

Thomas Gene Gross, MD

Pediatric Hematology & Oncology Physician · Phoenix, AZ

Thomas Gene Gross, MD is a pediatric hematology & oncology physician with a practice address in Phoenix, Arizona, and NPI 1285636258, issued on Aug 10, 2005. Check the license (Arizona 71019, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285636258
Name
Thomas Gene Gross
Credential
MD
Primary taxonomy
Pediatric Hematology & Oncology Physician 2080P0207X
License numbers
71019 AZ
DR.0064358 CO
35075261 OH
Self-reported in NPPES; status is on the state search
Practice location
1919 E Thomas RD, Phoenix, AZ 85016
Phone
(602) 933-1000
Enumerated
Aug 10, 2005
Record last updated
Oct 25, 2023
Medicaid ID
133198 AZ
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1919 E Thomas RD

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

  1. Asmaa Aamir, M.D.Diagnostic Radiology Physician1912163791
  2. Madeline Aaron, APRN-RNPPediatric Nurse Practitioner1851134837
  3. Brandon Abbott, D.O., M.P.H.Hospitalist Physician1528350139
  4. Jason AbbottStudent in an Organized Health Care Education/Training Program1184257958
  5. Monica Abd El Nour, MDPediatric Infectious Diseases Physician1760044101
  6. Lindsay Abel, DOStudent in an Organized Health Care Education/Training Program1750222055

Verify Thomas Gene Gross in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 71019
    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 Arizona 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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Industry payments in 2024: $19,471.64

6 payments; by number, the most common kind was travel and lodging; the largest payer was F. Hoffmann-La Roche AG. The 1,215 providers of this specialty with any payment received $7,404.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Gross$19,472
  2. Specialty average$7,404

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

Thomas Gene Gross among 55 pediatric hematology & oncology physician records in Arizona

Thomas Gene Gross, MD is one of 55 pediatric hematology & oncology physician records with a practice address in Arizona. 58% 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 · 58% of these records are
  • In the CMS Doctors and Clinicians fileNo · 33% of these records are
  • Record last updated2023 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0207X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Hematology & Oncology Physician providers in Arizona

There are 55 pediatric hematology & oncology physician records in Arizona.

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

  1. Paul Baranko, MDPhoenix, AZ 850161568435014
  2. Jessica Boklan, M.D.Phoenix, AZ 850161508829938
  3. Francis Eshun, MDPhoenix, AZ 850161568548543
  4. Michael Etzl, M.D.Phoenix, AZ 850161285697490
  5. Michael Henry, M.D.Phoenix, AZ 850161609839844
  6. Christine Knoll, M.D.Phoenix, AZ 850161710009642
  7. Mario Otto, M.D., PH.D.Phoenix, AZ 850161306064654
  8. Amy Rosenfeld, MDPhoenix, AZ 850161558523175

Common questions

What is Thomas Gene Gross, MD's NPI number?

Thomas Gene Gross, MD's National Provider Identifier (NPI) is 1285636258, issued on Aug 10, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Gene Gross, MD located?

The NPPES record lists a practice address at 1919 E Thomas RD, Phoenix, AZ, 85016. Phone: (602) 933-1000. Providers update this record themselves, so call before visiting.

How can I verify Thomas Gene Gross, MD's license?

NPPES lists Arizona license number 71019, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

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.