Winston Chich-Ming Hsieh
- Medicare services, 2024
- 90
- Medicare patients, 2024
- 92
- Part D claims, 2024
- 283
- MIPS score, 2024
- 89
- Hospital affiliations
- 2
- Practice address
- 100 W. California Blvd, Pasadena, CA 91105
- Practice phone
- Call (626) 397-2618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Huntington Hospital - Unit
Acute Care Hospital-Unit · Pasadena, California
Find Winston Hsieh'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.
Winston Chich-Ming Hsieh is a physician assistant in Pasadena, California
Winston Hsieh practices at Huntington Hospital - Unit in Pasadena, California.
Winston Hsieh's NPI, 1457085763, was assigned on July 12, 2022. Winston Hsieh graduated from University of Southern California Keck School of Medicine in 2023.
- NPI
- 1457085763NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739543505
- NPI enumeration date
- July 12, 2022
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 397-2618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Winston Chich-Ming Hsieh practices at Huntington Hospital - Unit in Pasadena, California
Winston Hsieh's primary practice is Huntington Hospital - Unit, at 100 W. California Blvd, Pasadena, CA 91105 in Los Angeles County. The practice phone is (626) 397-2618.
- Huntington Hospital - Unit100 W. California Blvd, Pasadena, CA 91105 · Los Angeles CountyPhone(626) 397-2618
Source: Dmand AI Affiliation Data
Winston Chich-Ming Hsieh is affiliated with 3 sites of care and 2 medical groups
Winston Hsieh's primary practice is Huntington Hospital - Unit in Pasadena, California. Winston Hsieh is also affiliated with Huntington Hospital. The medical group on file is Cedars-Sinai Medical Group. Dmand AI also links Winston Hsieh to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Winston Chich-Ming Hsieh's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Winston Hsieh practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Huntington Hospital - Unit | 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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Winston Chich-Ming Hsieh is one of 11,482 physician assistants in California
Physician assistant is Winston Hsieh's primary specialty in the NPI Registry, under taxonomy code 363A00000X.
Specialties and state licenses
- Physician assistantPrimary
Physician assistants near Winston Hsieh
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
Winston Chich-Ming Hsieh billed Medicare for 90 services in 2024
CMS data shows 90 Medicare services from Winston Hsieh across 4 procedure codes in 2024, for 92 Medicare patients. Medicare paid $9,391 for them.
Winston Hsieh's Medicare services by type, 2024
- Office and hospital visits62
- Surgery28
Where Winston Hsieh's Medicare services took place, 2024
- In an office6269%
- In a facility2831%
Winston Hsieh compared with the California median for physician assistants, 2024
- Winston Hsieh
- California median
- Medicare services
- 90vs 20456% below
- Medicare patients
- 92vs 10512% below
- Part D claims
- 233vs 243Close to median
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Winston Hsieh'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Winston Chich-Ming Hsieh treated 92 Medicare patients in 2024, average age 77
CMS counts 92 Medicare patients who saw Winston Hsieh in 2024. The largest group is 75 to 84, with 36 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 50% are also on Medicaid. Their average risk score is 2.18, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Winston Hsieh's median patient age at 71, with 64% women.
Winston Hsieh's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Winston Hsieh's Medicare patients by sex, 2024
- Women6470%
- Men2830%
Chronic conditions among Winston Hsieh's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Diabetes58%
- Osteoporosis46%
- Chronic kidney disease38%
- Heart failure38%
- Mood disorders37%
Share of Medicare patients with each condition. A patient can have several.
Winston Hsieh's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Winston Chich-Ming Hsieh wrote 283 Medicare Part D claims in 2024
In 2024, Winston Hsieh wrote 283 Medicare Part D claims for 129 patients. 97% of them were for generic drugs. CMS names the drug for 233 of them, across 5 drugs with 11 or more claims each, at $1,147 in total drug cost.
Winston Hsieh's Part D claims by kind of drug, 2024
- Generic275 claims97%
- Brand-name and other8 claims3%
Winston Hsieh'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 Winston Hsieh's Part D claims, 2024
- Opioids32%91 of 283 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
Winston Chich-Ming Hsieh scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Winston Hsieh for performance year 2024, reported as part of a group. Winston Hsieh accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Winston Hsieh's MIPS scores, performance year 2024
- 89of 100Final score
- 62.8of 100Quality
- 40of 100Improvement Activities
- 84of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Winston Chich-Ming Hsieh received $53 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Winston Hsieh from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Innovation Technologies Inc paid the most, $28.
General payments to Winston Hsieh by program year, 2024 to 2025
Companies that paid Winston Hsieh the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Winston Chich-Ming Hsieh graduated from University of Southern California Keck School of Medicine
Winston Hsieh graduated from University of Southern California Keck School of Medicine in 2023.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Winston Chich-Ming Hsieh'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 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)Clinician Public Reporting: Overall MIPS Performance (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 Winston Chich-Ming Hsieh
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Winston Chich-Ming Hsieh's NPI number?
Winston Chich-Ming Hsieh's NPI number is 1457085763. It was assigned on July 12, 2022, and it is active in the NPI Registry.
What does Winston Chich-Ming Hsieh specialize in?
Winston Chich-Ming Hsieh is a physician assistant in Pasadena, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Winston Chich-Ming Hsieh practice?
Winston Hsieh practices at 100 W. California Blvd, Pasadena, CA 91105. Winston Hsieh's primary practice is Huntington Hospital - Unit in Pasadena, California. Dmand AI also links Winston Hsieh to 1 group practice or clinic and 1 medical group.
What is Winston Chich-Ming Hsieh's office phone number?
The practice phone on file for Winston Hsieh is (626) 397-2618.
Which hospitals is Winston Chich-Ming Hsieh affiliated with?
Winston Hsieh is affiliated with Huntington Hospital. Dmand AI links Winston Hsieh to 1 more hospital.
What medical group is Winston Chich-Ming Hsieh part of?
Winston Hsieh is linked to Cedars-Sinai Medical Group. Dmand AI links Winston Hsieh to 1 more medical group.
Does Winston Chich-Ming Hsieh accept Medicare?
Yes. CMS data shows Winston Hsieh billed Medicare for 90 services in 2024, and Winston Hsieh accepts Medicare assignment.
What is Winston Chich-Ming Hsieh's MIPS score?
Winston Hsieh's MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Winston Chich-Ming Hsieh see?
CMS counts 92 Medicare patients who saw Winston Hsieh in 2024, with an average age of 77.
What services does Winston Chich-Ming Hsieh bill to Medicare?
In 2024, Winston Hsieh's most billed Medicare services were office visit, established patient (99214), surgery: bones and joints (27245) and office visit, new patient (99204).
Show 4 more questionsShow fewer questions
Where did Winston Chich-Ming Hsieh go to medical school?
Winston Hsieh graduated from University of Southern California Keck School of Medicine in 2023.
What drugs does Winston Chich-Ming Hsieh prescribe most?
In 2024 Medicare Part D data, Winston Hsieh's most prescribed drugs by claims were Meloxicam, Hydrocodone-Acetaminophen and Ondansetron HCl.
Has Winston Chich-Ming Hsieh received payments from drug or device companies?
CMS Open Payments shows $53 in general payments to Winston Hsieh from 2 companies from 2024 to 2025. The largest total came from Innovation Technologies Inc.
How long has Winston Chich-Ming Hsieh been practicing?
Winston Hsieh graduated from medical school in 2023, 3 years ago.
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