Marlon Alexander Guerrero, M.D.
Surgery Physician · Tucson, AZ
Marlon Alexander Guerrero, M.D. is a surgery physician with a practice address in Tucson, Arizona, and NPI 1487822516, issued on Feb 11, 2008. Check the license (Arizona 41683, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Marlon Alexander Guerrero
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License numbers
- 41683 AZ
A102936 CA
Self-reported in NPPES; status is on the state search - Practice location
- Banner-University Medical Center Tucson, Tucson, AZ 85724
- Phone
- (520) 626-2635
- Enumerated
- Feb 11, 2008
- Record last updated
- Dec 10, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (520) 626-7785
- Medicare enrollment
- Enrolled (PECOS I20090605000297); accepts Medicare assignment
- Medical or professional school
- Meharry Medical College School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at Banner-University Medical Center Tucson
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Anita Koshy, M.D.Neurology Physician1326237801
Verify Marlon Alexander Guerrero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 41683Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% more Medicare Part D claims than the average surgery physician in 2024
198 Medicare Part D claims for 85 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Levothyroxine Sodium158 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): 97.6 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: $378.72
4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Banner-University Medical GroupTucson, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Surgery Physician providers in Arizona
There are 760 surgery physician records in Arizona.
Other surgery physician records in Arizona
- Mazin AbdalgadirTucson, AZ1518695600
- Joseph Abdo, M.D.Globe, AZ1821090879
- Mohammad Abudoush, MDTucson, AZ1891539078
- Moaz Abulfaraj, MDFort Defiance, AZ1861797193
- Marcus Adair, M.D.Tucson, AZ1780027979
- Melanie Adams-Boyle, D.O.Phoenix, AZ1932544665
- Adefolarin Adeyemi, MDTucson, AZ1235983602
- Allen Agapay, MDGlendale, AZ1962401117
- Jeffrey Aguiar, DOPrescott, AZ1801358452
- Rima Ahmad, MBBSPhoenix, AZ1154760742
Common questions
What is Marlon Alexander Guerrero, M.D.'s NPI number?
Marlon Alexander Guerrero, M.D.'s National Provider Identifier (NPI) is 1487822516, issued on Feb 11, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marlon Alexander Guerrero, M.D. located?
The NPPES record lists a practice address at Banner-University Medical Center Tucson, Tucson, AZ, 85724. Phone: (520) 626-2635. Providers update this record themselves, so call before visiting.
How can I verify Marlon Alexander Guerrero, M.D.'s license?
NPPES lists Arizona license number 41683, 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 Marlon Alexander Guerrero, M.D. prescribe under Medicare Part D?
In 2024, Marlon Alexander Guerrero, M.D. had 198 Medicare Part D claims for 85 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Marlon Alexander Guerrero, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.6 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.