Karen Y. Chen, PA
- Medicare patients, 2024
- 115
- Part D claims, 2024
- 210
- MIPS score, 2024
- 85
- Industry payments
- $1,434
- Affiliated sites
- 3
- Practice address
- 2238 Geary Blvd, San Francisco, CA 94115
- Practice phone
- Call (415) 833-3700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
San Francisco Medical Center - Mammography
Mammography / Breast Imaging Center · San Francisco, California
Find Karen Chen'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.
Karen Y. Chen is a physician assistant in San Francisco, California
Karen Chen practices at San Francisco Medical Center - Mammography in San Francisco, California.
Karen Chen's NPI, 1891374963, was assigned on April 6, 2021. Karen Chen holds California license 60110.
- NPI
- 1891374963NPI Registry (opens in a new tab)
- NPI enumeration date
- April 6, 2021
- NPI status
- Active
- Practice phone
- (415) 833-3700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Karen Y. Chen practices at San Francisco Medical Center - Mammography in San Francisco, California
Karen Chen's primary practice is San Francisco Medical Center - Mammography, at 2238 Geary Blvd, San Francisco, CA 94115. The practice phone is (415) 833-3700.
- San Francisco Medical Center - Mammography2238 Geary Blvd, San Francisco, CA 94115Phone(415) 833-3700
Source: Dmand AI Affiliation Data
Karen Y. Chen is affiliated with 3 sites of care and 2 medical groups
Karen Chen's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Karen Chen to 2 more group practices and clinics and 1 medical group, each named with a free account. Karen Chen's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Karen Y. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Chen practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Francisco Medical Center - Mammography | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen Y. Chen is one of 11,482 physician assistants in California
Physician assistant is Karen Chen's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Karen Chen is licensed in California.
Specialties and state licenses
- Physician assistant, CaliforniaPrimary
Physician assistants near Karen Chen
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
Karen Y. Chen treated 115 Medicare patients in 2024, average age 76
CMS counts 115 Medicare patients who saw Karen Chen in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 15% are also on Medicaid. Their average risk score is 1.07, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Karen Chen's median patient age at 36, with 55% women.
Karen Chen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Karen Chen's Medicare patients by sex, 2024
- Women5447%
- Men6153%
Chronic conditions among Karen Chen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure70%
- Arthritis43%
- Diabetes31%
- Ischemic heart disease21%
- Atrial fibrillation20%
- Anxiety19%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Karen Chen'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
- Women55%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Karen Y. Chen wrote 210 Medicare Part D claims in 2024
In 2024, Karen Chen wrote 210 Medicare Part D claims for 106 patients. 94% of them were for generic drugs.
Karen Chen's Part D claims by kind of drug, 2024
- Generic197 claims94%
- Brand-name13 claims6%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Karen Y. Chen scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Karen Chen for performance year 2024, reported as part of a group.
Karen Chen's MIPS scores, performance year 2024
- 85of 100Final score
- 90.8of 100Quality
- 87of 100Promoting Interoperability
- 40of 100Improvement Activities
- 71of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Karen Y. Chen received $1,434 in industry payments in 2025
CMS Open Payments shows 39 general payments to Karen Chen from 14 drug and device companies in 2025. Food and beverage make up the largest share, 99% of the total. Incyte Corporation paid the most, $320.
General payments to Karen Chen by kind, 2025 to 2025
- Food and beverage$1,42499%
- Education$101%
Companies that paid Karen Chen 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 Karen Y. Chen'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 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 | 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 Karen Y. Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Karen Y. Chen's NPI number?
Karen Y. Chen's NPI number is 1891374963. It was assigned on April 6, 2021, and it is active in the NPI Registry.
What does Karen Y. Chen specialize in?
Karen Y. Chen is a physician assistant in San Francisco, California. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Karen Y. Chen practice?
Karen Chen practices at 2238 Geary Blvd, San Francisco, CA 94115. Karen Chen's primary practice is San Francisco Medical Center - Mammography in San Francisco, California. Dmand AI also links Karen Chen to 2 group practices and clinics and 1 medical group.
What is Karen Y. Chen's office phone number?
The practice phone on file for Karen Chen is (415) 833-3700.
What is Karen Y. Chen's medical license number?
Karen Chen holds California license 60110.
What medical group is Karen Y. Chen part of?
Karen Chen is linked to The Permanente Medical Group, Inc. Dmand AI links Karen Chen to 1 more medical group.
What is Karen Y. Chen's MIPS score?
Karen Chen's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Karen Y. Chen see?
CMS counts 115 Medicare patients who saw Karen Chen in 2024, with an average age of 76.
Has Karen Y. Chen received payments from drug or device companies?
CMS Open Payments shows $1,434 in general payments to Karen Chen from 14 companies from 2025 to 2025. The largest total came from Incyte Corporation.
How long has Karen Y. Chen been practicing?
Karen Chen graduated from medical school in 2021, 5 years ago.
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