Cheiny Shiau, PA-C
- Medicare services, 2024
- 160
- Medicare patients, 2024
- 106
- Part D claims, 2024
- 1,844
- Industry payments
- $67,621
- Affiliated sites
- 2
- Practice address
- 420 East 3rd Street Suite 110, Los Angeles, CA 90013
- Practice phone
- Call (213) 617-9194
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Third Street Surgery Center
Surgery Center - Medicare-Certified · Los Angeles, California
Find Cheiny Shiau'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.
Cheiny Shiau is a physician assistant in Los Angeles, California
Cheiny Shiau practices at Third Street Surgery Center in Los Angeles, California.
Cheiny Shiau's NPI, 1477036895, was assigned on September 11, 2018.
- NPI
- 1477036895NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3274928486
- NPI enumeration date
- September 11, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (213) 617-9194
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Cheiny Shiau practices at Third Street Surgery Center in Los Angeles, California
Cheiny Shiau's primary practice is Third Street Surgery Center, at 420 East 3rd Street Suite 110, Los Angeles, CA 90013. The practice phone is (213) 617-9194.
- Third Street Surgery Center420 East 3rd Street Suite 110, Los Angeles, CA 90013Phone(213) 617-9194
Source: Dmand AI Affiliation Data
Cheiny Shiau is affiliated with 2 sites of care and 1 medical group
Cheiny Shiau's primary practice is Third Street Surgery Center in Los Angeles, California. The medical group on file is Irradiance Medical Group Dermatology. Dmand AI also links Cheiny Shiau to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Cheiny Shiau's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Cheiny Shiau practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Third Street Surgery Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Cheiny Shiau is one of 2,381 physician assistants in California
Medical is Cheiny Shiau's primary specialty in the NPI Registry, under taxonomy code 363AM0700X.
Specialties and state licenses
- Medical physician assistantPrimary
- Surgical physician assistant
Clinical focus
Dmand AI lists acne, benign or precancerous skin growths, contact dermatitis and skin discoloration among the conditions Cheiny Shiau treats.
Physician assistants near Cheiny Shiau
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
Cheiny Shiau billed Medicare for 160 services in 2024
CMS data shows 160 Medicare services from Cheiny Shiau across 5 procedure codes in 2024, for 106 Medicare patients. Medicare paid $8,271 for them. Every service was in an office.
Cheiny Shiau's Medicare services by type, 2024
- Office and hospital visits124
- Surgery36
Cheiny Shiau compared with the California median for physician assistants, 2024
- Cheiny Shiau
- California median
- Medicare services
- 160vs 27842% below
- Medicare patients
- 106vs 1169% below
- Part D claims
- 1,674vs 4403.8 times
Medians across 1,473 physician assistants in California with Dmand AI profiles that report each measure.
Cheiny Shiau's most billed Medicare procedure codes, 2024
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 Cheiny Shiau and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Cheiny Shiau treated 106 Medicare patients in 2024, average age 72
CMS counts 106 Medicare patients who saw Cheiny Shiau in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 74% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Cheiny Shiau's median patient age at 45, with 55% women.
Cheiny Shiau's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Cheiny Shiau's Medicare patients by sex, 2024
- Women5047%
- Men5653%
Chronic conditions among Cheiny Shiau's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis40%
- Chronic kidney disease32%
- Ischemic heart disease28%
- Anxiety20%
- Mood disorders17%
Share of Medicare patients with each condition. A patient can have several.
Cheiny Shiau's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women55%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Cheiny Shiau wrote 1,844 Medicare Part D claims in 2024
In 2024, Cheiny Shiau wrote 1,844 Medicare Part D claims for 331 patients. 71% of them were for generic drugs. CMS names the drug for 1,674 of them, across 34 drugs with 11 or more claims each, at $3,019,417 in total drug cost.
Cheiny Shiau's Part D claims by kind of drug, 2024
- Generic1,308 claims71%
- Brand-name536 claims29%
Cheiny Shiau'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 Cheiny Shiau's Part D claims, 2024
- Antibiotics2%34 of 1,844 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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 Cheiny Shiau takes part in Medicare
Cheiny Shiau 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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Cheiny Shiau received $67,621 in industry payments from 2024 to 2025
CMS Open Payments shows 785 general payments to Cheiny Shiau from 21 drug and device companies from 2024 to 2025. Speaker and faculty fees make up the largest share, 63% of the total. Abbvie Inc. paid the most, $27,748.
General payments to Cheiny Shiau by program year, 2024 to 2025
General payments to Cheiny Shiau by kind, 2024 to 2025
- Speaker and faculty fees$42,40563%
- Food and beverage$18,83128%
- Travel and lodging$5,4138%
- Consulting fees$5001%
- Other$4731%
Companies that paid Cheiny Shiau the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Cheiny Shiau'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Cheiny Shiau
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Cheiny Shiau's NPI number?
Cheiny Shiau's NPI number is 1477036895. It was assigned on September 11, 2018, and it is active in the NPI Registry.
What does Cheiny Shiau specialize in?
Cheiny Shiau is a physician assistant in Los Angeles, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Cheiny Shiau practice?
Cheiny Shiau practices at 420 East 3rd Street Suite 110, Los Angeles, CA 90013. Cheiny Shiau's primary practice is Third Street Surgery Center in Los Angeles, California. Dmand AI also links Cheiny Shiau to 1 group practice or clinic.
What is Cheiny Shiau's office phone number?
The practice phone on file for Cheiny Shiau is (213) 617-9194.
What medical group is Cheiny Shiau part of?
Cheiny Shiau is linked to Irradiance Medical Group Dermatology.
Does Cheiny Shiau accept Medicare?
Yes. CMS data shows Cheiny Shiau billed Medicare for 160 services in 2024, and Cheiny Shiau accepts Medicare assignment.
How many Medicare patients does Cheiny Shiau see?
CMS counts 106 Medicare patients who saw Cheiny Shiau in 2024, with an average age of 72.
What services does Cheiny Shiau bill to Medicare?
In 2024, Cheiny Shiau's most billed Medicare services were office visit, established patient (99214), surgery: skin and soft tissue (17110) and office visit, established patient (99213).
What drugs does Cheiny Shiau prescribe most?
In 2024 Medicare Part D data, Cheiny Shiau's most prescribed drugs by claims were Fluocinonide, Triamcinolone Acetonide and Dupixent Pen.
Has Cheiny Shiau received payments from drug or device companies?
CMS Open Payments shows $67,621 in general payments to Cheiny Shiau from 21 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has Cheiny Shiau been practicing?
Cheiny Shiau graduated from medical school in 2018, 8 years ago.
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