Mark Tsuchiyose, M.D.
NPI 1063412195 · Gastroenterology Physician · Daly City, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Tsuchiyose, M.D. is a Gastroenterology Physician provider in Daly City, CA (NPI 1063412195).
Provider details
- NPI number
- 1063412195
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G53160 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,107 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 306 | $58 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 216 | $153 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 178 | $74 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $107 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 61 | $87 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 395 | 188 |
| Peg3350/Sod Sul/Nacl/Kcl/Asb/Cbrand: Plenvu | 48 | 46 |
| Lipase/Protease/Amylasebrand: Creon | 36 | 14 |
| Omeprazole | 26 | — |
| Mesalamine | 22 | — |
| Sucralfate | 20 | 13 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 19 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,273 across 52 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-29
- Last updated
- 2024-11-19
- Certified
- 2024-11-19
Frequently asked questions
- What is Mark Tsuchiyose's NPI number?
- Mark Tsuchiyose's National Provider Identifier (NPI) is 1063412195, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Tsuchiyose's specialty?
- Mark Tsuchiyose is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Tsuchiyose located?
- Mark Tsuchiyose's practice location on file with NPPES is 1850 Sullivan Avenue #520, Daly City, CA 94015.
- What is Mark Tsuchiyose's phone number?
- The practice phone number listed in the NPPES registry for Mark Tsuchiyose is (650) 756-5000.
- Does Mark Tsuchiyose accept Medicare?
- Mark Tsuchiyose is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Tsuchiyose's NPI active?
- Yes — Mark Tsuchiyose's NPI (1063412195) is active in the NPPES registry as of the last update on 2024-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.