Dr. David C. Tsai, DO
- Medicare services, 2022
- 226
- Part D claims, 2024
- 464
- Hospital affiliations
- 1
- Industry payments
- $392
- Medical group
- 1
- Practice address
- 777 East Santa Clara Street, San Jose, CA 95112
- Practice phone
- Call (408) 885-7200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Valley Health Center Downtown
FQHC - Main Site · San Jose, California
Find Dr. Tsai's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. David C. Tsai is a family medicine physician in San Jose, California
Dr. Tsai practices at Valley Health Center Downtown in San Jose, California.
Dr. Tsai's NPI, 1528377975, was assigned on October 4, 2010. Dr. Tsai graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2010. Dr. Tsai holds Michigan license 5101019500.
- NPI
- 1528377975NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608005301
- NPI enumeration date
- October 4, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 885-7200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David C. Tsai practices at Valley Health Center Downtown in San Jose, California
Dr. Tsai's primary practice is Valley Health Center Downtown, at 777 East Santa Clara Street, San Jose, CA 95112. The practice phone is (408) 885-7200.
- Valley Health Center Downtown777 East Santa Clara Street, San Jose, CA 95112Phone(408) 885-7200
Source: Dmand AI Affiliation Data
Dr. David C. Tsai is affiliated with 4 sites of care and 1 medical group
Dr. Tsai's primary practice is Valley Health Center Downtown in San Jose, California. Dr. Tsai is also affiliated with Santa Clara Valley Medical Center. The medical group on file is County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic. Dmand AI also links Dr. Tsai to 1 more breast imaging center and 1 urgent care center, each named with a free account. Dr. Tsai's employer is on file too: a community health center (fqhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David C. Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsai practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Valley Health Center Downtown | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David C. Tsai is one of 15,680 family medicine physicians in California
Family medicine is Dr. Tsai's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Tsai is licensed in Michigan.
Specialties and state licenses
- Family medicine, MichiganPrimary
Family medicine physicians near Dr. Tsai
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David C. Tsai billed Medicare for 226 services in 2022
CMS data shows 226 Medicare services from Dr. Tsai across 4 procedure codes in 2022. Medicare paid $20,752 for them. Every service was in an office.
Dr. Tsai's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 2562022: 14643%
- Lab and pathology
- 2021: 592022: 8036%
- Surgery
- 2021: 152022: 0100%
Dr. Tsai compared with the California median for family medicine physicians, 2022
- Dr. Tsai
- California median
- Medicare services
- 226vs 2468% below
- Part D claims
- 190vs 83377% below
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Tsai's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsai and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David C. Tsai's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. Tsai's median patient age at 44, with 47% women.
Dr. Tsai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women47%
- Men52%
Source: Dmand AI Patient Panel Data
Dr. David C. Tsai wrote 464 Medicare Part D claims in 2024
In 2024, Dr. Tsai wrote 464 Medicare Part D claims for 241 patients. 87% of them were for generic drugs. CMS names the drug for 190 of them, across 9 drugs with 11 or more claims each, at $1,297 in total drug cost. In 2023, CMS named 169 claims across 8 drugs.
Dr. Tsai's Part D claims by kind of drug, 2024
- Generic403 claims87%
- Brand-name and other61 claims13%
Dr. Tsai's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Tsai's Part D claims, 2024
- Opioids3%15 of 464 claims
- Antibiotics23%109 of 464 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1692024: 19012%
Drugs named by CMS: 9 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. David C. Tsai takes part in Medicare
Dr. Tsai accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. David C. Tsai received $392 in industry payments from 2016 to 2022
CMS Open Payments shows 27 general payments to Dr. Tsai from 13 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $124.
General payments to Dr. Tsai by program year, 2016 to 2022
Companies that paid Dr. Tsai the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David C. Tsai graduated from Kansas City University of Med & Biosciences, College of Osteo Med
Dr. Tsai graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David C. Tsai's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. David C. Tsai
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. David C. Tsai's NPI number?
Dr. David C. Tsai's NPI number is 1528377975. It was assigned on October 4, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. David C. Tsai?
Dr. David C. Tsai is a family medicine physician in San Jose, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. David C. Tsai practice?
Dr. Tsai practices at 777 East Santa Clara Street, San Jose, CA 95112. Dr. Tsai's primary practice is Valley Health Center Downtown in San Jose, California. Dmand AI also links Dr. Tsai to 1 breast imaging center and 1 urgent care center.
What is Dr. David C. Tsai's office phone number?
The practice phone on file for Dr. Tsai is (408) 885-7200.
What is Dr. David C. Tsai's medical license number?
Dr. Tsai holds Michigan license 5101019500.
Which hospitals is Dr. David C. Tsai affiliated with?
Dr. Tsai is affiliated with Santa Clara Valley Medical Center.
What medical group is Dr. David C. Tsai part of?
Dr. Tsai is linked to County of Santa Clara Behavioral Health Services, Las Plumas Behavioral Health Clinic.
Does Dr. David C. Tsai accept Medicare?
Yes. CMS data shows Dr. Tsai billed Medicare for 226 services in 2022, and Dr. Tsai accepts Medicare assignment.
What services does Dr. David C. Tsai bill to Medicare?
In 2022, Dr. Tsai's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and lab and pathology test (87426).
Where did Dr. David C. Tsai go to medical school?
Dr. Tsai graduated from Kansas City University of Med & Biosciences, College of Osteo Med in 2010.
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What drugs does Dr. David C. Tsai prescribe most?
In 2024 Medicare Part D data, Dr. Tsai's most prescribed drugs by claims were Azithromycin, Mupirocin and Cephalexin.
Has Dr. David C. Tsai received payments from drug or device companies?
CMS Open Payments shows $392 in general payments to Dr. Tsai from 13 companies from 2016 to 2022. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. David C. Tsai been practicing?
Dr. Tsai graduated from medical school in 2010, 16 years ago.
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