John Guisto, MD
Emergency Medicine Physician · Tucson, AZ
John Guisto, MD is an emergency medicine physician with a practice address in Tucson, Arizona, and NPI 1003881798, issued on Feb 17, 2006. Check the license (Arizona 16262, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Guisto
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 16262 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 1501 N Campbell Ave, Tucson, AZ 85724
- Phone
- (520) 874-3500
- Enumerated
- Feb 17, 2006
- Record last updated
- May 30, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 270851 AZ
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 1501 N Campbell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Guisto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 16262Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
John Guisto among 1,494 emergency medicine physician records in Arizona
John Guisto, MD is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 62% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 55% of these records are
- Record last updated2008 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
422 emergency medicine physician records list a practice address in Tucson
They are 422 of the 18,788 NPPES records with a practice address in Tucson, and 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Tucson → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Daniel Beskind, MDTucson, AZ 857241699747337
- Lisa Chan, MDTucson, AZ 857241104899251
- Albert Fiorello, MDTucson, AZ 857241962475897
- Kenneth Iserson, MDTucson, AZ 857241609841238
- Samuel Keim, MDTucson, AZ 857241134194616
- Harvey Meislin, MDTucson, AZ 857241043301674
- Marie Olson, MDTucson, AZ 857241386726313
- John Sakles, MDTucson, AZ 857241558431924
Common questions
What is John Guisto, MD's NPI number?
John Guisto, MD's National Provider Identifier (NPI) is 1003881798, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Guisto, MD located?
The NPPES record lists a practice address at 1501 N Campbell Ave, Tucson, AZ, 85724. Phone: (520) 874-3500. Providers update this record themselves, so call before visiting.
How can I verify John Guisto, MD's license?
NPPES lists Arizona license number 16262, 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.
What is John Guisto, MD'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.