Amy Thien-Ngoc Chu, PA-C
- Medicare services, 2024
- 16
- Medicare patients, 2024
- 21
- Part D claims, 2024
- 22
- Hospital affiliations
- 1
- Industry payments
- $71
- Practice address
- 911 Sunset Drive, Hollister, CA 95032
- Practice phone
- Call (831) 637-5711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Amy Chu's professional email, personal email and mobile number
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Amy Thien-Ngoc Chu is a physician assistant in Hollister, California
Amy Chu practices at Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins.
Amy Chu's NPI, 1528829397, was assigned on January 19, 2024. Amy Chu holds California license PA64675.
- NPI
- 1528829397NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4082149422
- NPI enumeration date
- January 19, 2024
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (831) 637-5711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 28
- Medical school graduation
- 2024
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Amy Thien-Ngoc Chu practices at Hazel Hawkins Memorial Hospital in Hollister, California
Amy Chu's primary practice is Hazel Hawkins Memorial Hospital, at 911 Sunset Drive, Hollister, CA 95032 in Santa Clara County. The practice phone is (831) 637-5711.
- Hazel Hawkins Memorial Hospital911 Sunset Drive, Hollister, CA 95032 · Santa Clara CountyPhone(831) 637-5711
Source: Dmand AI Affiliation Data
Amy Thien-Ngoc Chu is affiliated with 1 site of care and 2 medical groups
Amy Chu's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. The medical group on file is Hazel Hawkins Memorial Hospital. Dmand AI also links Amy Chu to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Amy Thien-Ngoc Chu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Amy Chu practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hazel Hawkins Memorial Hospital | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Hazel Hawkins and 6.2K+ hospitals, with verified contacts in the same login.
Amy Thien-Ngoc Chu is one of 11,482 physician assistants in California
Physician assistant is Amy Chu's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Amy Chu is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Amy Chu
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
Amy Thien-Ngoc Chu billed Medicare for 16 services in 2024
CMS data shows 16 Medicare services from Amy Chu across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $2,022 for them. Every service was in a facility, such as a hospital, rather than an office.
Amy Chu compared with the California median for physician assistants, 2024
- Amy Chu
- California median
- Medicare services
- 16vs 20492% below
- Medicare patients
- 21vs 10580% below
Medians across 7,065 physician assistants in California with Dmand AI profiles that report each measure.
Amy Chu'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 Amy Chu and other physician assistants in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Amy Thien-Ngoc Chu treated 21 Medicare patients in 2024, average age 73
CMS counts 21 Medicare patients who saw Amy Chu in 2024. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.90, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Amy Chu's median patient age at 36, with 77% women.
Chronic conditions among Amy Chu's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
Share of Medicare patients with each condition. A patient can have several.
Amy Chu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 36
Patient panel by sex, all payers
- Women77%
- Men22%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Amy Thien-Ngoc Chu wrote 22 Medicare Part D claims in 2024
In 2024, Amy Chu wrote 22 Medicare Part D claims for 15 patients. 95% of them were for generic drugs.
Amy Chu's Part D claims by kind of drug, 2024
- Generic21 claims95%
- Brand-name and other1 claims5%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Amy Thien-Ngoc Chu takes part in Medicare
Amy Chu 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Amy Thien-Ngoc Chu received $71 in industry payments in 2025
CMS Open Payments shows 3 general payments to Amy Chu from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $43.
Companies that paid Amy Chu the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Amy Thien-Ngoc Chu'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 (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 Amy Thien-Ngoc Chu
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Amy Thien-Ngoc Chu's NPI number?
Amy Thien-Ngoc Chu's NPI number is 1528829397. It was assigned on January 19, 2024, and it is active in the NPI Registry.
What does Amy Thien-Ngoc Chu specialize in?
Amy Thien-Ngoc Chu is a physician assistant in Hollister, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Amy Thien-Ngoc Chu practice?
Amy Chu practices at 911 Sunset Drive, Hollister, CA 95032. Amy Chu's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. Dmand AI also links Amy Chu to 1 medical group.
What is Amy Thien-Ngoc Chu's office phone number?
The practice phone on file for Amy Chu is (831) 637-5711.
What is Amy Thien-Ngoc Chu's medical license number?
Amy Chu holds California license PA64675.
Which hospitals is Amy Thien-Ngoc Chu affiliated with?
Amy Chu practices at Hazel Hawkins Memorial Hospital in Hollister, California.
What medical group is Amy Thien-Ngoc Chu part of?
Amy Chu is linked to Hazel Hawkins Memorial Hospital. Dmand AI links Amy Chu to 1 more medical group.
Does Amy Thien-Ngoc Chu accept Medicare?
Yes. CMS data shows Amy Chu billed Medicare for 16 services in 2024, and Amy Chu accepts Medicare assignment.
How many Medicare patients does Amy Thien-Ngoc Chu see?
CMS counts 21 Medicare patients who saw Amy Chu in 2024, with an average age of 73.
What services does Amy Thien-Ngoc Chu bill to Medicare?
In 2024, Amy Chu's most billed Medicare services were emergency department visit (99285).
Has Amy Thien-Ngoc Chu received payments from drug or device companies?
CMS Open Payments shows $71 in general payments to Amy Chu from 2 companies from 2025 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Amy Thien-Ngoc Chu been practicing?
Amy Chu graduated from medical school in 2024, 2 years ago.
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