Pen Yi Tso
- Part D claims, 2024
- 34
- Industry payments
- $18
- Affiliated sites
- 4
- Medical groups
- 6
- State license
- 1
- Practice address
- 1300 South Sunset Avenue, West Covina, CA 91790
- Practice phone
- Call (626) 960-6999
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AltaMed Medical and Dental Group - West Covina
FQHC - Main Site · West Covina, California
Find Pen Yi Tso'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.
Pen Yi Tso is an acute care nurse practitioner in West Covina, California
Pen Yi Tso practices at AltaMed Medical and Dental Group - West Covina in West Covina, California.
Pen Yi Tso's NPI, 1962900233, was assigned on January 31, 2018. Pen Yi Tso holds California license 95007376.
- NPI
- 1962900233NPI Registry (opens in a new tab)
- NPI enumeration date
- January 31, 2018
- NPI status
- Active
- Practice phone
- (626) 960-6999
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 35
- Medical school graduation
- 2017
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Pen Yi Tso practices at AltaMed Medical and Dental Group - West Covina in West Covina, California
Pen Yi Tso's primary practice is AltaMed Medical and Dental Group - West Covina, at 1300 South Sunset Avenue, West Covina, CA 91790 in Los Angeles County. The practice phone is (626) 960-6999.
- AltaMed Medical and Dental Group - West Covina1300 South Sunset Avenue, West Covina, CA 91790 · Los Angeles CountyPhone(626) 960-6999
Source: Dmand AI Affiliation Data
Pen Yi Tso is affiliated with 4 sites of care and 6 medical groups
Pen Yi Tso's primary practice is AltaMed Medical and Dental Group - West Covina in West Covina, California. The medical group on file is Housecall Doctors Medical Group. Dmand AI also links Pen Yi Tso to 5 more medical groups, 2 group practices and clinics and 1 community health center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Pen Yi Tso's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Pen Yi Tso practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AltaMed Medical and Dental Group - West Covina | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Pen Yi Tso is one of 1,440 acute care nurse practitioners in California
Acute care is Pen Yi Tso's primary specialty in the NPI Registry, under taxonomy code 363LA2100X. Pen Yi Tso is licensed in California.
Specialties and state licenses
- Acute care nurse practitioner, CaliforniaPrimary
Acute care nurse practitioners near Pen Yi Tso
Counts of acute care nurse practitioners 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
Pen Yi Tso's patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Pen Yi Tso's median patient age at 68, with 54% women.
Pen Yi Tso's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men46%
Source: Dmand AI Patient Panel Data
Pen Yi Tso wrote 34 Medicare Part D claims in 2024
In 2024, Pen Yi Tso wrote 34 Medicare Part D claims for 19 patients. 79% of them were for generic drugs.
Pen Yi Tso's Part D claims by kind of drug, 2024
- Generic27 claims79%
- Brand-name and other7 claims21%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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.
Pen Yi Tso received $18 in industry payments in 2025
CMS Open Payments shows 1 general payment to Pen Yi Tso from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $18.
Companies that paid Pen Yi Tso 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 Pen Yi Tso'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 (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 Pen Yi Tso
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Pen Yi Tso's NPI number?
Pen Yi Tso's NPI number is 1962900233. It was assigned on January 31, 2018, and it is active in the NPI Registry.
What does Pen Yi Tso specialize in?
Pen Yi Tso is an acute care nurse practitioner in West Covina, California. The primary specialty in the NPI Registry is Acute Care Nurse Practitioner (taxonomy code 363LA2100X).
Where does Pen Yi Tso practice?
Pen Yi Tso practices at 1300 South Sunset Avenue, West Covina, CA 91790. Pen Yi Tso's primary practice is AltaMed Medical and Dental Group - West Covina in West Covina, California. Dmand AI also links Pen Yi Tso to 5 medical groups, 2 group practices and clinics and 1 community health center.
What is Pen Yi Tso's office phone number?
The practice phone on file for Pen Yi Tso is (626) 960-6999.
What is Pen Yi Tso's medical license number?
Pen Yi Tso holds California license 95007376.
What medical group is Pen Yi Tso part of?
Pen Yi Tso is linked to Housecall Doctors Medical Group. Dmand AI links Pen Yi Tso to 5 more medical groups.
Has Pen Yi Tso received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Pen Yi Tso from 1 company from 2025 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Pen Yi Tso been practicing?
Pen Yi Tso graduated from medical school in 2017, 9 years ago.
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