Dr. Andrew S. Hsu, MD
- Medicare services, 2020
- 183
- Part D claims, 2024
- 34
- Industry payments
- $1,088
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 480 4th Ave, Chula Vista, CA 91910
- Practice phone
- Call (619) 425-7470
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Bay Surgical Associates Medical Group Inc.
Chula Vista, California
Find Dr. Hsu'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. Andrew S. Hsu is a general surgeon in Chula Vista, California
Dr. Hsu practices at South Bay Surgical Associates Medical Group Inc. in Chula Vista, California.
Dr. Hsu's NPI, 1083817399, was assigned on June 6, 2007. Dr. Hsu graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2002. Dr. Hsu holds California license A108956.
- NPI
- 1083817399NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436244761
- NPI enumeration date
- June 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 425-7470
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Andrew S. Hsu practices at South Bay Surgical Associates Medical Group Inc. in Chula Vista, California
Dr. Hsu's primary practice is South Bay Surgical Associates Medical Group Inc., at 480 4th Ave, Chula Vista, CA 91910 in San Diego County. The practice phone is (619) 425-7470.
- South Bay Surgical Associates Medical Group Inc.480 4th Ave, Chula Vista, CA 91910 · San Diego CountyPhone(619) 425-7470
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Andrew S. Hsu is affiliated with 3 sites of care and 2 medical groups
Dr. Hsu's primary practice is South Bay Surgical Associates Medical Group Inc. in Chula Vista, California. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Hsu to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Andrew S. Hsu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hsu practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Bay Surgical Associates Medical Group Inc. | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Andrew S. Hsu is one of 2,926 general surgeons in California
Surgery is Dr. Hsu's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Hsu is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Hsu
Counts of general surgeons 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. Andrew S. Hsu billed Medicare for 183 services in 2020
CMS data shows 183 Medicare services from Dr. Hsu across 5 procedure codes in 2020. Medicare paid $15,912 for them.
Dr. Hsu's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 2552020: 18328%
Where Dr. Hsu's Medicare services took place, 2020
- In an office5027%
- In a facility13373%
Dr. Hsu compared with the California median for general surgeons, 2020
- Dr. Hsu
- California median
- Medicare services
- 183vs 16610% above
- Part D claims
- 24vs 3429% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Hsu's most billed Medicare procedure codes, 2020
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. Hsu and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Andrew S. Hsu's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Dr. Hsu's median patient age at 49, with 60% 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 49
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Andrew S. Hsu wrote 34 Medicare Part D claims in 2024
In 2024, Dr. Hsu wrote 34 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $160 in total drug cost. In 2019, CMS named 68 claims across 3 drugs.
Dr. Hsu's most prescribed drugs by claims, 2020
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. Hsu's Part D claims, 2024
- Opioids47%16 of 34 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, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 682020: 2465%
Drugs named by CMS: 2 in 2020, 3 in 2019.
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. Andrew S. Hsu takes part in Medicare
Dr. Hsu 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. Andrew S. Hsu received $1,088 in industry payments from 2016 to 2025
CMS Open Payments shows 37 general payments to Dr. Hsu from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Covidien LP paid the most, $150.
General payments to Dr. Hsu by program year, 2016 to 2025
General payments to Dr. Hsu by kind, 2016 to 2025
- Food and beverage$1,06097%
- Travel and lodging$283%
Companies that paid Dr. Hsu the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Andrew S. Hsu graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Dr. Hsu graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Andrew S. 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 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. Andrew S. 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. Andrew S. Hsu's NPI number?
Dr. Andrew S. Hsu's NPI number is 1083817399. It was assigned on June 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Andrew S. Hsu?
Dr. Andrew S. Hsu is a general surgeon in Chula Vista, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Andrew S. Hsu practice?
Dr. Hsu practices at 480 4th Ave, Chula Vista, CA 91910. Dr. Hsu's primary practice is South Bay Surgical Associates Medical Group Inc. in Chula Vista, California. Dmand AI also links Dr. Hsu to 2 group practices and clinics and 1 medical group.
What is Dr. Andrew S. Hsu's office phone number?
The practice phone on file for Dr. Hsu is (619) 425-7470.
What is Dr. Andrew S. Hsu's medical license number?
Dr. Hsu holds California license A108956.
What medical group is Dr. Andrew S. Hsu part of?
Dr. Hsu is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Hsu to 1 more medical group.
Does Dr. Andrew S. Hsu accept Medicare?
Yes. CMS data shows Dr. Hsu billed Medicare for 183 services in 2020, and Dr. Hsu accepts Medicare assignment.
What services does Dr. Andrew S. Hsu bill to Medicare?
In 2020, Dr. Hsu's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99223).
Where did Dr. Andrew S. Hsu go to medical school?
Dr. Hsu graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 2002.
What drugs does Dr. Andrew S. Hsu prescribe most?
In 2020 Medicare Part D data, Dr. Hsu's most prescribed drugs by claims were Hydrocodone-Acetaminophen and Cephalexin.
Has Dr. Andrew S. Hsu received payments from drug or device companies?
CMS Open Payments shows $1,088 in general payments to Dr. Hsu from 20 companies from 2016 to 2025. The largest total came from Covidien LP.
How long has Dr. Andrew S. Hsu been practicing?
Dr. Hsu graduated from medical school in 2002, 24 years ago.
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