Lawrence Tsai, PA-C
- Part D claims, 2024
- 4,259
- Hospital affiliations
- 1
- Industry payments
- $833
- State license
- 1
- Year NPI issued
- 2010
- Practice address
- 3751 Katella Avenue, Los Alamitos, CA 90720
- Practice phone
- Call (562) 799-3220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Lawrence 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.
Lawrence Tsai is a physician assistant in Los Alamitos, California
Lawrence Tsai practices at UCI Health - Los Alamitos in Los Alamitos, California, part of UC Irvine.
Lawrence Tsai's NPI, 1316247661, was assigned on November 2, 2010. Lawrence Tsai holds California license PA21018.
- NPI
- 1316247661NPI Registry (opens in a new tab)
- NPI enumeration date
- November 2, 2010
- NPI status
- Active
- Practice phone
- (562) 799-3220
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Lawrence Tsai practices at UCI Health - Los Alamitos in Los Alamitos, California
Lawrence Tsai's primary practice is UCI Health - Los Alamitos, at 3751 Katella Avenue, Los Alamitos, CA 90720 in Orange County. The practice phone is (562) 799-3220.
- UCI Health - Los Alamitos3751 Katella Avenue, Los Alamitos, CA 90720 · Orange CountyPhone(562) 799-3220
Source: Dmand AI Affiliation Data
Lawrence Tsai is affiliated with 2 sites of care
Lawrence Tsai's primary practice is UCI Health - Los Alamitos in Los Alamitos, California, part of UC Irvine. Dmand AI also links Lawrence Tsai to 1 hospital outpatient department, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Lawrence Tsai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Lawrence Tsai practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Los Alamitos | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Lawrence Tsai is one of 2,381 physician assistants in California
Medical is Lawrence Tsai's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Lawrence Tsai is licensed in California.
Specialties and state licenses
- Medical physician assistant, CaliforniaPrimary
Physician assistants near Lawrence Tsai
Counts of physician assistants 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
Lawrence Tsai's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Lawrence Tsai's median patient age at 58, with 57% women.
Lawrence 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 58
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Lawrence Tsai wrote 4,259 Medicare Part D claims in 2024
In 2024, Lawrence Tsai wrote 4,259 Medicare Part D claims for 442 patients. 75% of them were for generic drugs.
Lawrence Tsai's Part D claims by kind of drug, 2024
- Generic3,215 claims75%
- Brand-name996 claims23%
- Other48 claims1%
Drug classes CMS tracks in Lawrence Tsai's Part D claims, 2024
- Opioids4%152 of 4,259 claims
- Antibiotics3%138 of 4,259 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Lawrence Tsai received $833 in industry payments in 2025
CMS Open Payments shows 33 general payments to Lawrence Tsai from 12 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $327.
Companies that paid Lawrence Tsai the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Lawrence 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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Lawrence 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 Lawrence Tsai's NPI number?
Lawrence Tsai's NPI number is 1316247661. It was assigned on November 2, 2010, and it is active in the NPI Registry.
What does Lawrence Tsai specialize in?
Lawrence Tsai is a physician assistant in Los Alamitos, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Lawrence Tsai practice?
Lawrence Tsai practices at 3751 Katella Avenue, Los Alamitos, CA 90720. Lawrence Tsai's primary practice is UCI Health - Los Alamitos in Los Alamitos, California, part of UC Irvine. Dmand AI also links Lawrence Tsai to 1 hospital outpatient department.
What is Lawrence Tsai's office phone number?
The practice phone on file for Lawrence Tsai is (562) 799-3220.
What is Lawrence Tsai's medical license number?
Lawrence Tsai holds California license PA21018.
Which hospitals is Lawrence Tsai affiliated with?
Lawrence Tsai practices at UCI Health - Los Alamitos in Los Alamitos, California.
Has Lawrence Tsai received payments from drug or device companies?
CMS Open Payments shows $833 in general payments to Lawrence Tsai from 12 companies from 2025 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Lawrence Tsai been practicing?
Lawrence Tsai's NPI was assigned in 2010.
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