Adaptation, PsychologicalAsianAttitude to Health
Dr. Lydia Hsu, MD
NPI1356554679PAC ID8628124088
- Part D claims, 2024
- 3,196
- Publications
- 1
- Industry payments
- $563
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1190 Veterans Blvd, Redwood City, CA 94063
- Practice phone
- Call (650) 299-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Redwood City, California
Find Dr. Hsu's professional email, personal email and mobile number
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Dr. Lydia Hsu is an ophthalmologist in Redwood City, California
Dr. Hsu practices at Permanente Medical Group Inc in Redwood City, California.
Dr. Hsu's NPI, 1356554679, was assigned on May 7, 2007. Dr. Hsu graduated from University Of Cincinnati College Of Medicine in 2005. Dr. Hsu holds California license A108514.
NPI and contact details
- NPI
- 1356554679NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628124088
- NPI enumeration date
- May 7, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 299-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lydia Hsu practices at Permanente Medical Group Inc in Redwood City, California
Dr. Hsu's primary practice is Permanente Medical Group Inc, at 1190 Veterans Blvd, Redwood City, CA 94063 in San Mateo County. The practice phone is (650) 299-2000.
- Permanente Medical Group Inc1190 Veterans Blvd, Redwood City, CA 94063 · San Mateo CountyPhone(650) 299-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Lydia Hsu is affiliated with 2 sites of care and 1 medical group
Dr. Hsu's primary practice is Permanente Medical Group Inc in Redwood City, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Hsu to 1 more group practice or clinic, named with a free account.
Permanente Medical Group IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Lydia Hsu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lydia Hsu is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Hsu is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Hsu is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Clinical focus
Dmand AI lists conjunctivitis and glaucoma among the conditions Dr. Hsu treats.
Ophthalmologists near Dr. Hsu
Counts of ophthalmologists 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. Lydia Hsu's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 75, with 52% women.
Dr. Hsu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Lydia Hsu wrote 3,196 Medicare Part D claims in 2024
In 2024, Dr. Hsu wrote 3,196 Medicare Part D claims for 597 patients. 82% of them were for generic drugs. CMS names the drug for 3,118 of them, across 25 drugs with 11 or more claims each, at $204,203 in total drug cost. In 2023, CMS named 3,113 claims across 27 drugs.
Part D claims, 20243,196
Drugs named by CMS25
Total drug cost$204,203
Part D patients597
Dr. Hsu's Part D claims by kind of drug, 2024
- Generic2,617 claims82%
- Brand-name579 claims18%
Dr. Hsu'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,1132024: 3,118No change
Drugs named by CMS: 25 in 2024, 27 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. Lydia Hsu takes part in Medicare
Dr. Hsu accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Lydia Hsu has 1 publication on record
Dmand AI links 1 paper to Dr. Hsu in 2013.
Papers1
Recent publications by Dr. Hsu
See who Dr. Hsu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hsu works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Lydia Hsu received $563 in industry payments from 2017 to 2025
CMS Open Payments shows 8 general payments to Dr. Hsu from 3 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $385.
General payments to Dr. Hsu by program year, 2017 to 2025
Companies that paid Dr. Hsu the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lydia Hsu has 1 award and honors on record
Dmand AI lists 1 award for Dr. Hsu.
Awards and honors for Dr. Hsu
- Undated
- AAO Fellow
Source: Dmand AI Professional Profile Data
Dr. Lydia Hsu graduated from University Of Cincinnati College Of Medicine
Dr. Hsu graduated from University Of Cincinnati College Of Medicine in 2005. Dr. Hsu is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Lydia Hsu accepts plans from 2 insurance carriers
Dr. Hsu is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Hsu accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Lydia Hsu'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Lydia Hsu
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. Lydia Hsu's NPI number?
Dr. Lydia Hsu's NPI number is 1356554679. It was assigned on May 7, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Lydia Hsu?
Dr. Lydia Hsu is an ophthalmologist in Redwood City, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Lydia Hsu practice?
Dr. Hsu practices at 1190 Veterans Blvd, Redwood City, CA 94063. Dr. Hsu's primary practice is Permanente Medical Group Inc in Redwood City, California. Dmand AI also links Dr. Hsu to 1 group practice or clinic.
What is Dr. Lydia Hsu's office phone number?
The practice phone on file for Dr. Hsu is (650) 299-2000.
What is Dr. Lydia Hsu's medical license number?
Dr. Hsu holds California license A108514.
What medical group is Dr. Lydia Hsu part of?
Dr. Hsu is linked to The Permanente Medical Group, Inc.
Does Dr. Lydia Hsu accept Medicare?
Yes. CMS lists Dr. Hsu as accepting Medicare assignment.
Is Dr. Lydia Hsu board certified?
Yes. Dr. Hsu is board certified in ophthalmology by the American Board of Ophthalmology.
Where did Dr. Lydia Hsu go to medical school?
Dr. Hsu graduated from University Of Cincinnati College Of Medicine in 2005.
What drugs does Dr. Lydia Hsu prescribe most?
In 2024 Medicare Part D data, Dr. Hsu's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
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Has Dr. Lydia Hsu received payments from drug or device companies?
CMS Open Payments shows $563 in general payments to Dr. Hsu from 3 companies from 2017 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Lydia Hsu been practicing?
Dr. Hsu graduated from medical school in 2005, 21 years ago.
Does Dr. Lydia Hsu do research?
Dmand AI links 1 publication to Dr. Hsu.
What insurance does Dr. Lydia Hsu accept?
Dr. Hsu is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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