Vi Ngo, PA-C
- Part D claims, 2024
- 533
- Hospital affiliations
- 1
- Industry payments
- $3,205
- Medical groups
- 2
- State license
- 1
- 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 Vi Ngo's professional email, personal email and mobile number
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Vi Ngo is a physician assistant in Hollister, California
Vi Ngo practices at Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins.
Vi Ngo's NPI, 1104307305, was assigned on August 24, 2018. Vi Ngo holds California license 55899.
- NPI
- 1104307305NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2018
- NPI status
- Active
- Practice phone
- (831) 637-5711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Vi Ngo practices at Hazel Hawkins Memorial Hospital in Hollister, California
Vi Ngo'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
Vi Ngo is affiliated with 3 sites of care and 2 medical groups
Vi Ngo's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. The medical group on file is Vituity. Dmand AI also links Vi Ngo to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Vi Ngo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Vi Ngo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hazel Hawkins Memorial Hospital | Available with a free account |
| +2 more sites and 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.
Vi Ngo is one of 11,482 physician assistants in California
Physician assistant is Vi Ngo's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Vi Ngo is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Vi Ngo
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
Vi Ngo's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Vi Ngo's median patient age at 72, with 88% women.
Vi Ngo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women88%
- Men12%
Source: Dmand AI Patient Panel Data
Vi Ngo wrote 533 Medicare Part D claims in 2024
In 2024, Vi Ngo wrote 533 Medicare Part D claims for 119 patients. 89% of them were for generic drugs. CMS names the drug for 453 of them, across 14 drugs with 11 or more claims each, at $263,541 in total drug cost.
Vi Ngo's Part D claims by kind of drug, 2024
- Generic477 claims89%
- Brand-name and other56 claims11%
Vi Ngo'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.
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
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Vi Ngo received $3,205 in industry payments from 2024 to 2025
CMS Open Payments shows 129 general payments to Vi Ngo from 38 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $393.
General payments to Vi Ngo by program year, 2024 to 2025
General payments to Vi Ngo by kind, 2024 to 2025
- Food and beverage$3,10697%
- Education$993%
Companies that paid Vi Ngo 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 Vi Ngo'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 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) |
| 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 Vi Ngo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Vi Ngo's NPI number?
Vi Ngo's NPI number is 1104307305. It was assigned on August 24, 2018, and it is active in the NPI Registry.
What does Vi Ngo specialize in?
Vi Ngo is a physician assistant in Hollister, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Vi Ngo practice?
Vi Ngo practices at 911 Sunset Drive, Hollister, CA 95032. Vi Ngo's primary practice is Hazel Hawkins Memorial Hospital in Hollister, California, part of Hazel Hawkins. Dmand AI also links Vi Ngo to 2 group practices and clinics and 1 medical group.
What is Vi Ngo's office phone number?
The practice phone on file for Vi Ngo is (831) 637-5711.
What is Vi Ngo's medical license number?
Vi Ngo holds California license 55899.
Which hospitals is Vi Ngo affiliated with?
Vi Ngo practices at Hazel Hawkins Memorial Hospital in Hollister, California.
What medical group is Vi Ngo part of?
Vi Ngo is linked to Vituity. Dmand AI links Vi Ngo to 1 more medical group.
What drugs does Vi Ngo prescribe most?
In 2024 Medicare Part D data, Vi Ngo's most prescribed drugs by claims were Anastrozole, Hydroxyurea and Folic Acid.
Has Vi Ngo received payments from drug or device companies?
CMS Open Payments shows $3,205 in general payments to Vi Ngo from 38 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Vi Ngo been practicing?
Vi Ngo's NPI was assigned in 2018.
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