Mark M. Tsuchiyose, M.D.
Gastroenterology Physician · Daly City, CA
Mark M. Tsuchiyose, M.D. is a gastroenterology physician with a practice address in Daly City, California, and NPI 1063412195, issued on Jul 29, 2005. Check the license (California G53160, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark M. Tsuchiyose
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- G53160 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1850 Sullivan Avenue #520, Daly City, CA 94015
- Phone
- (650) 756-5000
- Enumerated
- Jul 29, 2005
- Record last updated
- Nov 19, 2024
- Fax
- (650) 756-5903
- Medicaid ID
- GR0092050 CA
- Medicare enrollment
- Enrolled (PECOS I20250416001012); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 2,140 in California → Look up another NPI →
Also registered at 1850 Sullivan Avenue #520
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Fisher, M.D.Gastroenterology Physician1639179799
Verify Mark M. Tsuchiyose in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53160Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% fewer Medicare Part D claims than the average gastroenterology physician in 2024
800 Medicare Part D claims for 313 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Pantoprazole Sodium395 claims
- Plenvu48 claims
- Creon36 claims
- Omeprazole26 claims
- Mesalamine22 claims
- Sucralfate20 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,272.79
52 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 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.
Bills Medicare through one group practice
- Genesis Healthcare Partners PCBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark M. Tsuchiyose among 2,140 gastroenterology physician records in California
Mark M. Tsuchiyose, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1983 · median 2002 among the 1,538 with a school on file
- Record last updated2024 · 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 Daly City → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Stefan Chin, MDDaly City, CA 940151891794152
- John Fisher, M.D.Daly City, CA 940151639179799
- Rowena Garcia Chuapoco, MDDaly City, CA 940151578563789
- Michael Bender, M.D.Burlingame, CA 940101942391586
- Rani BerryBurlingame, CA 940101821521774
- Tressia Hing, M.D.Burlingame, CA 940101427337815
- Prachi Nene, M.D.Burlingame, CA 940101124481619
- Michael Northcutt, M.D.Burlingame, CA 940101700204443
Common questions
What is Mark M. Tsuchiyose, M.D.'s NPI number?
Mark M. Tsuchiyose, M.D.'s National Provider Identifier (NPI) is 1063412195, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark M. Tsuchiyose, M.D. located?
The NPPES record lists a practice address at 1850 Sullivan Avenue #520, Daly City, CA, 94015. Phone: (650) 756-5000. Providers update this record themselves, so call before visiting.
How can I verify Mark M. Tsuchiyose, M.D.'s license?
NPPES lists California license number G53160, 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 Mark M. Tsuchiyose, M.D. prescribe under Medicare Part D?
In 2024, Mark M. Tsuchiyose, M.D. had 800 Medicare Part D claims for 313 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Mark M. Tsuchiyose, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.