Joyce Lin, PA-C
- Medicare patients, 2024
- 45
- Part D claims, 2024
- 557
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Industry payments
- $509
- Practice address
- 200 W Arbor Dr, San Diego, CA 92103
- Practice phone
- Call (619) 543-6222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
UCSD Hillcrest Medical Center
San Diego, California
Find Joyce Lin'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.
Joyce Lin is a physician assistant in San Diego, California
Joyce Lin practices at UCSD Hillcrest Medical Center in San Diego, California.
Joyce Lin's NPI, 1427681022, was assigned on February 21, 2020. Joyce Lin holds California license PA57821.
- NPI
- 1427681022NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2264863000
- NPI enumeration date
- February 21, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 543-6222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Joyce Lin practices at UCSD Hillcrest Medical Center in San Diego, California
Joyce Lin's primary practice is UCSD Hillcrest Medical Center, at 200 W Arbor Dr, San Diego, CA 92103 in San Diego County. The practice phone is (619) 543-6222.
- UCSD Hillcrest Medical Center200 W Arbor Dr, San Diego, CA 92103 · San Diego CountyPhone(619) 543-6222
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Joyce Lin is affiliated with 3 sites of care and 1 medical group
Joyce Lin's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Joyce Lin is also affiliated with Hillcrest Medical Center. The medical group on file is UC San Diego Health. Dmand AI also links Joyce Lin to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Joyce Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Joyce Lin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCSD Hillcrest Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Joyce Lin is one of 11,482 physician assistants in California
Physician assistant is Joyce Lin's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Joyce Lin is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Joyce Lin
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
Joyce Lin treated 45 Medicare patients in 2024, average age 72
CMS counts 45 Medicare patients who saw Joyce Lin in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have cancer, and 69% have high cholesterol. 33% are also on Medicaid. Their average risk score is 1.46, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Joyce Lin's median patient age at 61, with 91% women.
Joyce Lin's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Joyce Lin's Medicare patients, 2024
- Cancer75%
- High cholesterol69%
- Arthritis51%
- High blood pressure47%
- Osteoporosis31%
Share of Medicare patients with each condition. A patient can have several.
Joyce Lin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women91%
- Men6%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Joyce Lin wrote 557 Medicare Part D claims in 2024
In 2024, Joyce Lin wrote 557 Medicare Part D claims for 173 patients. 90% of them were for generic drugs.
Joyce Lin's Part D claims by kind of drug, 2024
- Generic504 claims90%
- Brand-name53 claims10%
Drug classes CMS tracks in Joyce Lin's Part D claims, 2024
- Opioids7%37 of 557 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
Joyce Lin scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Joyce Lin for performance year 2024, reported as part of a group. Joyce Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Joyce Lin's MIPS scores, performance year 2024
- 91of 100Final score
- 84.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 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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Joyce Lin received $509 in industry payments in 2025
CMS Open Payments shows 4 general payments to Joyce Lin from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $282.
Companies that paid Joyce Lin 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 Joyce Lin'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 DataDmand AI Org Hierarchy 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)Clinician Public Reporting: Overall MIPS Performance (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 Joyce Lin
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Joyce Lin's NPI number?
Joyce Lin's NPI number is 1427681022. It was assigned on February 21, 2020, and it is active in the NPI Registry.
What does Joyce Lin specialize in?
Joyce Lin is a physician assistant in San Diego, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Joyce Lin practice?
Joyce Lin practices at 200 W Arbor Dr, San Diego, CA 92103. Joyce Lin's primary practice is UCSD Hillcrest Medical Center in San Diego, California. Dmand AI also links Joyce Lin to 1 group practice or clinic.
What is Joyce Lin's office phone number?
The practice phone on file for Joyce Lin is (619) 543-6222.
What is Joyce Lin's medical license number?
Joyce Lin holds California license PA57821.
Which hospitals is Joyce Lin affiliated with?
Joyce Lin is affiliated with Hillcrest Medical Center.
What medical group is Joyce Lin part of?
Joyce Lin is linked to UC San Diego Health.
Does Joyce Lin accept Medicare?
Yes. CMS lists Joyce Lin as accepting Medicare assignment.
What is Joyce Lin's MIPS score?
Joyce Lin's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Joyce Lin see?
CMS counts 45 Medicare patients who saw Joyce Lin in 2024, with an average age of 72.
Has Joyce Lin received payments from drug or device companies?
CMS Open Payments shows $509 in general payments to Joyce Lin from 2 companies from 2025 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Joyce Lin been practicing?
Joyce Lin graduated from medical school in 2019, 7 years ago.
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