Patricia S. Tsai, MD
Ophthalmology Physician · Woodland Hills, CA
Patricia S. Tsai, MD is an ophthalmology physician with a practice address in Woodland Hills, California, and NPI 1053470708, issued on Dec 8, 2006. Check the license (California A73191, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Patricia S. Tsai
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A73191 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5601 DE Soto Ave, Woodland Hills, CA 91367
- Phone
- (818) 719-2000
- Enumerated
- Dec 8, 2006
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20050919001089); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 5601 DE Soto Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Houry Abajian, PHARM.D.Pharmacist1235297383
- Cecille Abeleda, RCP, RRTRegistered Respiratory Therapist1316424872
- Sunitha AbrahamCertified Respiratory Therapist1114409679
- Arineh AbramPharmacist1760108401
- Stephano Abusleme, DOStudent in an Organized Health Care Education/Training Program1538747639
- Ani Adamian, PHARM DPharmacist1043841851
Verify Patricia S. Tsai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73191Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% more Medicare Part D claims than the average ophthalmology physician in 2024
2,989 Medicare Part D claims for 566 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Latanoprost623 claims
- Dorzolamide-Timolol420 claims
- Prednisolone Acetate363 claims
- Timolol Maleate355 claims
- Brimonidine Tartrate241 claims
- Moxifloxacin198 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.
Industry payments in 2024: $402.02
7 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 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
- Southern California Permanente Medical GroupWoodland Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patricia S. Tsai among 2,899 ophthalmology physician records in California
Patricia S. Tsai, MD is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1999 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Woodland Hills → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Lloyd Cuzzo, M.D.Woodland Hills, CA 913671275811317
- Gelareh Dana, M.D.Woodland Hills, CA 913671235335316
- Ravi Gutta, MDWoodland Hills, CA 913671598836546
- Patrick KeatingWoodland Hills, CA 913671750325882
- Julie Kwon, MDLos Angeles, CA 913671902162217
- Grace Lee, MDWoodland Hills, CA 913671457428369
- Howard Levy, MDWoodland Hills, CA 913671215085154
- Ly Tong, M.D.Woodland Hills, CA 913671023036415
Common questions
What is Patricia S. Tsai, MD's NPI number?
Patricia S. Tsai, MD's National Provider Identifier (NPI) is 1053470708, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patricia S. Tsai, MD located?
The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (818) 719-2000. Providers update this record themselves, so call before visiting.
How can I verify Patricia S. Tsai, MD's license?
NPPES lists California license number A73191, 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 Patricia S. Tsai, MD prescribe under Medicare Part D?
In 2024, Patricia S. Tsai, MD had 2,989 Medicare Part D claims for 566 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.