Ronald Guzman, MD
Internal Medicine Physician · Fairport, NY
Ronald Guzman, MD is an internal medicine physician with a practice address in Fairport, New York, and NPI 1164563110, issued on Feb 11, 2007. Check the license (New York 192796, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Ronald Guzman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 192796 NY
Self-reported in NPPES; status is on the state search - Practice location
- 800 Ayrault RD Ste 200, Fairport, NY 14450
- Phone
- (585) 602-2300
- Enumerated
- Feb 11, 2007
- Record last updated
- Jul 5, 2023
- Fax
- (585) 425-2750
- Medicaid ID
- 01656766 NY
- Medicare enrollment
- Enrolled (PECOS I20110314000167); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 800 Ayrault RD Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jessica Hogestyn, NPAdult Health Nurse Practitioner1366920274
- Wallace Johnson, MDInternal Medicine Physician1902833619
- James Mason, MDInternal Medicine Physician1346277050
- Patrick Nunno, M.D.Internal Medicine Physician1972539351
- Tony Sun, MD, PHDInternal Medicine Physician1245972330
Verify Ronald Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 192796Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average internal medicine physician in 2024
740 Medicare Part D claims for 359 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Atorvastatin Calcium50 claims
- Lisinopril33 claims
- Amlodipine Besylate28 claims
- Omeprazole26 claims
- Levothyroxine Sodium25 claims
- Metoprolol Succinate19 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 practice group's MIPS final score for 2023 (Medicare payment program): 76.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 3 group practices
- Highland Hospital OF RochesterPenfield, NY
- Strong Medical GroupMarion, NY
- University OF RochesterRochester, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
15 internal medicine physician records list a practice address in Fairport
They are 15 of the 1,034 NPPES records with a practice address in Fairport, and 12,067 internal medicine physician records in New York.
All 15 in Fairport → All 12,067 in New York → Every provider in Fairport →
Other internal medicine physician records in New York
- Deborah Aanonsen, D.O.Staten Island, NY1952395717
- Nivedita Aanur, M.D.New York, NY1982833471
- Jay Aaron, MDGreat Neck, NY1245332956
- Ahmad AbadiPoughkeepsie, NY1780258517
- Jamsheed Abadi, MDBrooklyn, NY1477537496
- Antonieta Abarientos, MDNew Rochelle, NY1649285123
- Zurab Abayev, M.D.Brooklyn, NY1841283058
- Ehab Abaza, MDNew York, NY1114507555
- Vaidarshi Abbagoni, MDNew York, NY1871237495
- Muhammad AbbasRichmond Hill, NY1053996587
Common questions
What is Ronald Guzman, MD's NPI number?
Ronald Guzman, MD's National Provider Identifier (NPI) is 1164563110, issued on Feb 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Ronald Guzman, MD located?
The NPPES record lists a practice address at 800 Ayrault RD Ste 200, Fairport, NY, 14450. Phone: (585) 602-2300. Providers update this record themselves, so call before visiting.
How can I verify Ronald Guzman, MD's license?
NPPES lists New York license number 192796, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ronald Guzman, MD prescribe under Medicare Part D?
In 2024, Ronald Guzman, MD had 740 Medicare Part D claims for 359 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Ronald Guzman, MD's MIPS final score?
The 2023 MIPS final score is 76.8 of 100, reported for the practice group. 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.