Jason M. Guardino, D.O.
Gastroenterology Physician · Sacramento, CA
Jason M. Guardino, D.O. is a gastroenterology physician with a practice address in Sacramento, California, and NPI 1033245816, issued on Feb 26, 2007. Check the license (California 20A9941, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Jason M. Guardino
- Credential
- D.O.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 20A9941 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6600 Bruceville RD, Sacramento, CA 95823
- Phone
- (916) 688-6675
- Enumerated
- Feb 26, 2007
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110210000900); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 6600 Bruceville RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Chelsea Adams, DPTPhysical Therapist1215324645
- Jacob Adams, MDPsychiatry Physician1326126822
Verify Jason M. Guardino in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A9941Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average gastroenterology physician in 2024
29 Medicare Part D claims for 11 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Pantoprazole Sodium18 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
- Permanente Medical Group IncSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason M. Guardino among 2,140 gastroenterology physician records in California
Jason M. Guardino, D.O. is one of 2,140 gastroenterology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 37% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2001 · median 2002 among the 1,538 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in California
There are 2,140 gastroenterology physician records in California.
All 2,140 in California → Every provider in Sacramento → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Rekha Cheruvattath, MDSacramento, CA 958231891779740
- Don Finegold, MDSacramento, CA 958231972681609
- Edwin Gyorffy, MDSacramento, CA 958231336291558
- John Hata, M.D.Sacramento, CA 958231205800042
- Thomas Imperato, M.D.Sacramento, CA 958231902871684
- Manan Jhaveri, MDSacramento, CA 958231306285739
- Sheeva JohnsonSacramento, CA 958231326434200
- Gerald Kohn, MDSacramento, CA 958231457439184
Common questions
What is Jason M. Guardino, D.O.'s NPI number?
Jason M. Guardino, D.O.'s National Provider Identifier (NPI) is 1033245816, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jason M. Guardino, D.O. located?
The NPPES record lists a practice address at 6600 Bruceville RD, Sacramento, CA, 95823. Phone: (916) 688-6675. Providers update this record themselves, so call before visiting.
How can I verify Jason M. Guardino, D.O.'s license?
NPPES lists California license number 20A9941, 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 Jason M. Guardino, D.O. prescribe under Medicare Part D?
In 2024, Jason M. Guardino, D.O. had 29 Medicare Part D claims for 11 beneficiaries; the average among gastroenterology physician prescribers was 811. 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.