Michael Xavier Guzman, D.O.
Hospitalist Physician · Davis, CA
Michael Xavier Guzman, D.O. is a hospitalist physician with a practice address in Davis, California, and NPI 1144584756, issued on Jun 28, 2012. Check the license (California 20A14800, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Xavier Guzman
- Credential
- D.O.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 20A14800 CA
PG158104 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2000 Sutter PL, Davis, CA 95616
- Phone
- (530) 750-5909
- Enumerated
- Jun 28, 2012
- Record last updated
- May 2, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160926000679); accepts Medicare assignment
- Medical or professional school
- Arizona College Of Osteopathic Medicine Mid Western University, 2012
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 2000 Sutter PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dikshya AcharyaRegistered Nurse1659098945
- Oscar Barrios, M.D.Anesthesiology Physician1316958721
- Ramnik Bhogal, MDInternal Medicine Physician1326627589
- Gordon Chen, MDAnesthesiology Physician1508108085
- William Croskey, M.D.Hospitalist Physician1528328069
- Rachel Dern, M.D.Obstetrics & Gynecology Physician1437439262
Verify Michael Xavier Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14800Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average hospitalist physician in 2024
197 Medicare Part D claims for 85 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 12 claims were for opioids.
Most prescribed
- Furosemide15 claims
- Cefpodoxime Proxetil13 claims
- Amoxicillin-Clavulanate Potass11 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.
Bills Medicare through one group practice
- Sutter Valley Medical FoundationSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Xavier Guzman among 3,099 hospitalist physician records in California
Michael Xavier Guzman, D.O. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 51% of them.
- NPI issued2012 · 51% of these records are older, 44% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2012 · median 2010 among the 2,505 with a school on file
- Record last updated2017 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Davis → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- William Croskey, M.D.Davis, CA 956161528328069
- Peter Fong, DODavis, CA 956161821627514
- Lynn McAlister, D.O.Davis, CA 956161124474549
- Erjun Wang, M.D.Davis, CA 956161962599340
- Harith Al-Shuwaykh, M.D.Carmichael, CA 956081053604918
- Amer Ali, MDCarmichael, CA 956081699926535
- Mya Aung, M.DCarmichael, CA 956081982967345
- Sherry Bajwa, M.D.Carmichael, CA 956081932548682
Common questions
What is Michael Xavier Guzman, D.O.'s NPI number?
Michael Xavier Guzman, D.O.'s National Provider Identifier (NPI) is 1144584756, issued on Jun 28, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Xavier Guzman, D.O. located?
The NPPES record lists a practice address at 2000 Sutter PL, Davis, CA, 95616. Phone: (530) 750-5909. Providers update this record themselves, so call before visiting.
How can I verify Michael Xavier Guzman, D.O.'s license?
NPPES lists California license number 20A14800, 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 Michael Xavier Guzman, D.O. prescribe under Medicare Part D?
In 2024, Michael Xavier Guzman, D.O. had 197 Medicare Part D claims for 85 beneficiaries; the average among hospitalist physician prescribers was 521. 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.