Richard A. Guzman, MD
Family Medicine Physician · Riverside, CA
Richard A. Guzman, MD is a family medicine physician with a practice address in Riverside, California, and NPI 1336135169, issued on Sep 27, 2005. Check the license (California G63734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard A. Guzman
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G63734 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6485 Day St, Riverside, CA 92507
- Phone
- (951) 697-7824
- Enumerated
- Sep 27, 2005
- Record last updated
- Nov 5, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (951) 697-6461
- Medicaid ID
- 00G637340 CA
- Medicare enrollment
- Enrolled (PECOS I20070131000721); may accept Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 6485 Day St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Justina Breseno, MDPediatrics Physician1558454355
- Shannon PannellAcupuncturist1467926543
- James Ruppert, MDFamily Medicine Physician1366437667
Verify Richard A. Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G63734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average family medicine physician in 2024
1,911 Medicare Part D claims for 179 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium169 claims
- Losartan Potassium163 claims
- Amlodipine Besylate111 claims
- Hydrochlorothiazide70 claims
- Metformin Hcl Er56 claims
- Lisinopril51 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.
Industry payments in 2024: $170.70
1 payment: food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
258 family medicine physician records list a practice address in Riverside
They are 258 of the 13,893 NPPES records with a practice address in Riverside, and 17,133 family medicine physician records in California.
All 258 in Riverside → All 17,133 in California → Every provider in Riverside →
Other family medicine physician records in California
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- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Richard A. Guzman, MD's NPI number?
Richard A. Guzman, MD's National Provider Identifier (NPI) is 1336135169, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Richard A. Guzman, MD located?
The NPPES record lists a practice address at 6485 Day St, Riverside, CA, 92507. Phone: (951) 697-7824. Providers update this record themselves, so call before visiting.
How can I verify Richard A. Guzman, MD's license?
NPPES lists California license number G63734, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Richard A. Guzman, MD prescribe under Medicare Part D?
In 2024, Richard A. Guzman, MD had 1,911 Medicare Part D claims for 179 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.