Joann S. Won, PA
- Medicare patients, 2024
- 203
- Part D claims, 2024
- 1,324
- Hospital affiliations
- 1
- Industry payments
- $23
- Medical groups
- 2
- Practice address
- 2251 N Harbor Blvd, Fullerton, CA 92835
- Practice phone
- Call (714) 449-4900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Providence Medical Foundation
Fullerton, California
Find Joann Won'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.
Joann S. Won is a physician assistant in Fullerton, California
Joann Won practices at Providence Medical Foundation in Fullerton, California.
Joann Won's NPI, 1073847620, was assigned on September 30, 2009. Joann Won holds California license 20515.
- NPI
- 1073847620NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3072652395
- NPI enumeration date
- September 30, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 449-4900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Joann S. Won practices at Providence Medical Foundation in Fullerton, California
Joann Won's primary practice is Providence Medical Foundation, at 2251 N Harbor Blvd, Fullerton, CA 92835 in Orange County. The practice phone is (714) 449-4900.
- Providence Medical Foundation2251 N Harbor Blvd, Fullerton, CA 92835 · Orange CountyPhone(714) 449-4900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joann S. Won is affiliated with 3 sites of care and 2 medical groups
Joann Won's primary practice is Providence Medical Foundation in Fullerton, California. Joann Won is also affiliated with Providence St. Jude Medical Center. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Joann Won to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Joann S. Won's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joann Won practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence Medical Foundation | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Joann S. Won is one of 11,482 physician assistants in California
Physician assistant is Joann Won's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Joann Won is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Joann Won
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
Joann S. Won treated 203 Medicare patients in 2024, average age 74
CMS counts 203 Medicare patients who saw Joann Won in 2024. The largest group is 65 to 74, with 97 patients. 75% of them have high cholesterol, and 68% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joann Won's median patient age at 53, with 65% women.
Joann Won's Medicare patients by age, 2024
Joann Won's Medicare patients by sex, 2024
- Women13567%
- Men6833%
Chronic conditions among Joann Won's Medicare patients, 2024
- High cholesterol75%
- High blood pressure68%
- Arthritis49%
- Diabetes33%
- Chronic kidney disease26%
- Anxiety21%
- Osteoporosis21%
- Ischemic heart disease20%
Share of Medicare patients with each condition. A patient can have several.
Joann Won's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women65%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joann S. Won wrote 1,324 Medicare Part D claims in 2024
In 2024, Joann Won wrote 1,324 Medicare Part D claims for 560 patients. 89% of them were for generic drugs.
Joann Won's Part D claims by kind of drug, 2024
- Generic1,182 claims89%
- Brand-name and other142 claims11%
Drug classes CMS tracks in Joann Won's Part D claims, 2024
- Opioids1%14 of 1,324 claims
- Antibiotics15%203 of 1,324 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Joann S. Won takes part in Medicare
Joann Won 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.
Joann S. Won received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to Joann Won from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $23.
Companies that paid Joann Won 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 Joann S. Won'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| 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 Joann S. Won
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joann S. Won's NPI number?
Joann S. Won's NPI number is 1073847620. It was assigned on September 30, 2009, and it is active in the NPI Registry.
What does Joann S. Won specialize in?
Joann S. Won is a physician assistant in Fullerton, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Joann S. Won practice?
Joann Won practices at 2251 N Harbor Blvd, Fullerton, CA 92835. Joann Won's primary practice is Providence Medical Foundation in Fullerton, California. Dmand AI also links Joann Won to 1 group practice or clinic and 1 medical group.
What is Joann S. Won's office phone number?
The practice phone on file for Joann Won is (714) 449-4900.
What is Joann S. Won's medical license number?
Joann Won holds California license 20515.
Which hospitals is Joann S. Won affiliated with?
Joann Won is affiliated with Providence St. Jude Medical Center.
What medical group is Joann S. Won part of?
Joann Won is linked to St. Jude Heritage Medical Group. Dmand AI links Joann Won to 1 more medical group.
Does Joann S. Won accept Medicare?
Yes. CMS lists Joann Won as accepting Medicare assignment.
How many Medicare patients does Joann S. Won see?
CMS counts 203 Medicare patients who saw Joann Won in 2024, with an average age of 74.
Has Joann S. Won received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Joann Won from 1 company from 2025 to 2025. The largest total came from Abbvie Inc.
How long has Joann S. Won been practicing?
Joann Won graduated from medical school in 2009, 17 years ago.
Selling to physician assistant practices?
See physician assistants in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card