Guillermo Gonzalez, M.D.
Hematology & Oncology Physician · Tucson, AZ
Guillermo Gonzalez, M.D. is a hematology & oncology physician with a practice address in Tucson, Arizona, and NPI 1740249986, issued on Mar 17, 2006. Check the license (Arizona 20067, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Guillermo Gonzalez
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 20067 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 3945 E Paradise Falls Dr Ste 105, Tucson, AZ 85712
- Phone
- (520) 689-7030
- Enumerated
- Mar 17, 2006
- Record last updated
- Aug 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (520) 395-9796
- Medicare enrollment
- Enrolled (PECOS I20101215001042); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 285 in Arizona → Look up another NPI →
Also registered at 3945 E Paradise Falls Dr Ste 105
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Azar, MDHematology & Oncology Physician1083741037
- Kathryn Kennel, NPFamily Nurse Practitioner1144252164
- Manuel Modiano, M.D.Hematology & Oncology Physician1003864380
- Linda Moors, PA-CMedical Physician Assistant1295776912
- Benjamin Schwartz, M.D.Hematology & Oncology Physician1194188367
- Jonathan Schwartz, M.D.Hematology & Oncology Physician1437101755
Verify Guillermo Gonzalez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 20067Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average hematology & oncology physician in 2024
882 Medicare Part D claims for 180 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Revlimid127 claims
- Exemestane90 claims
- Folic Acid62 claims
- Bicalutamide58 claims
- Calquence38 claims
- Imbruvica36 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): 100 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $309.47
13 payments; by number, the most common kind was food and beverage; the largest payer was Celgene Corporation. 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.
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
- Arizona Blood And Cancer Specialists, PLLCTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Guillermo Gonzalez among 285 hematology & oncology physician records in Arizona
Guillermo Gonzalez, M.D. is one of 285 hematology & oncology physician records with a practice address in Arizona. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated1976 · median 2003 among the 229 with a school on file
- Record last updated2020 · 37% 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 Arizona 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 Arizona
There are 285 hematology & oncology physician records in Arizona.
All 285 in Arizona → Every provider in Tucson → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Catherine Azar, MDTucson, AZ 857121083741037
- Steven Ketchel, M.D.Tucson, AZ 857121760441968
- Manuel Modiano, M.D.Tucson, AZ 857121003864380
- Jonathan Schwartz, M.D.Tucson, AZ 857121437101755
- Benjamin Schwartz, M.D.Tucson, AZ 857121194188367
- Natalie Stanton, M.D.Tucson, AZ 857121528230737
- Ahmed Abdelaziz, M.D.Tucson, AZ 857111477817971
- Aisha Ahmed, M.D.Tucson, AZ 857111730341850
Common questions
What is Guillermo Gonzalez, M.D.'s NPI number?
Guillermo Gonzalez, M.D.'s National Provider Identifier (NPI) is 1740249986, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Guillermo Gonzalez, M.D. located?
The NPPES record lists a practice address at 3945 E Paradise Falls Dr Ste 105, Tucson, AZ, 85712. Phone: (520) 689-7030. Providers update this record themselves, so call before visiting.
How can I verify Guillermo Gonzalez, M.D.'s license?
NPPES lists Arizona license number 20067, 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.
How much does Guillermo Gonzalez, M.D. prescribe under Medicare Part D?
In 2024, Guillermo Gonzalez, M.D. had 882 Medicare Part D claims for 180 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Guillermo Gonzalez, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 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.