Joseph George Marsano
Gastroenterology Physician · Sacramento, CA
Joseph George Marsano is a gastroenterology physician with a practice address in Sacramento, California, and NPI 1235432527, issued on Dec 8, 2010. Check the license (California A136107, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph George Marsano
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- A136107 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4150 V St Ste 3500, Sacramento, CA 95817
- Phone
- (916) 734-3751
- Enumerated
- Dec 8, 2010
- Record last updated
- Apr 10, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20180613001289); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 4150 V St Ste 3500
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nicole Bernstein, MDGastroenterology Physician1982280541
- Andrea Broka, MDInternal Medicine Physician1578028189
- Jacqueline Chang, MDGastroenterology Physician1437785458
Verify Joseph George Marsano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A136107Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average gastroenterology physician in 2024
731 Medicare Part D claims for 272 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Pantoprazole Sodium246 claims
- Gavilyte-G96 claims
- Famotidine57 claims
- Linzess50 claims
- Peg-3350 And Electrolytes48 claims
- Omeprazole29 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).
Joseph George Marsano among 2,140 gastroenterology physician records in California
Joseph George Marsano 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 2010, is newer than 72% of them.
- NPI issued2010 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2012 · median 2002 among the 1,538 with a school on file
- Record last updated2018 · 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
- Amar Al-Juburi, M.D.Sacramento, CA 958171821041229
- Christopher Aoki, M.D.Sacramento, CA 958171164460499
- Christopher Bowlus, M.D.Sacramento, CA 958171942252085
- Juan Garcia, M.D.Sacramento, CA 958171407809288
- Michael Lawson, MDSacramento, CA 958171245318922
- Joseph Leung, M.D.Sacramento, CA 958171861475287
- Valentina Medici, M.D.Sacramento, CA 958171902858541
- Mary Pauly, MDSacramento, CA 958171225116999
Common questions
What is Joseph George Marsano's NPI number?
Joseph George Marsano's National Provider Identifier (NPI) is 1235432527, issued on Dec 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Joseph George Marsano located?
The NPPES record lists a practice address at 4150 V St Ste 3500, Sacramento, CA, 95817. Phone: (916) 734-3751. Providers update this record themselves, so call before visiting.
How can I verify Joseph George Marsano's license?
NPPES lists California license number A136107, 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 Joseph George Marsano prescribe under Medicare Part D?
In 2024, Joseph George Marsano had 731 Medicare Part D claims for 272 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.