Margaret Chen

  • San Francisco, CA
  • Family medicine physician
NPI1427403617PAC ID1759716749
Medicare services, 2024
305
Medicare patients, 2024
149
Part D claims, 2024
883
MIPS score, 2024
85
Hospital affiliations
2
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 5 affiliations

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Margaret Chen is a family medicine physician in San Francisco, California

Margaret Chen practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health.

Margaret Chen's NPI, 1427403617, was assigned on April 26, 2016. Margaret Chen holds California license A152850.

NPI and contact details
Medicare PAC ID
1759716749
NPI enumeration date
April 26, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(415) 353-2733
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
36
Medical school graduation
2016

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Margaret Chen practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Margaret Chen's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights, at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143 in San Francisco County. The practice phone is (415) 353-2733.

Source: Dmand AI Affiliation Data

Margaret Chen is affiliated with 2 sites of care and 3 medical groups

Margaret Chen's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Margaret Chen is also affiliated with Zuckerberg San Francisco General Hospital and Trauma Center. The medical group on file is UCSF Pediatrics. Dmand AI also links Margaret Chen to 2 more medical groups, each named with a free account.

See all 5 affiliations for Margaret Chen

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Margaret Chen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Margaret Chen practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCSF Helen Diller Medical Center at Parnassus HeightsAvailable with a free account
+1 more site and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Margaret Chen is one of 15,680 family medicine physicians in California

Family medicine is Margaret Chen's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Margaret Chen is licensed in California.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense A152850 · taxonomy 207Q00000X

Family medicine physicians near Margaret Chen

Counts of family medicine physicians 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

Margaret Chen billed Medicare for 305 services in 2024

CMS data shows 305 Medicare services from Margaret Chen across 6 procedure codes in 2024, for 149 Medicare patients. Medicare paid $15,368 for them.

Medicare services, 2024305
Medicare patients149
Paid by Medicare$15,368
Procedure codes6

Margaret Chen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1492024: 21041%
Other services
2023: 02024: 95

Where Margaret Chen's Medicare services took place, 2024

  • In an office23577%
  • In a facility7023%

Margaret Chen compared with the California median for family medicine physicians, 2024

  • Margaret Chen
  • California median
Medicare services
305vs 24624% above
Medicare patients
149vs 11826% above
Part D claims
495vs 83341% below

Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.

Margaret Chen's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Margaret Chen

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Margaret Chen treated 149 Medicare patients in 2024, average age 72

CMS counts 149 Medicare patients who saw Margaret Chen in 2024. The largest group is 65 to 74, with 79 patients. 62% of them have high cholesterol, and 47% have arthritis. 26% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Margaret Chen's median patient age at 50, with 89% women.

Medicare patients, 2024149
Average age72
Average risk score1.31
Also on Medicaid26%

Margaret Chen's Medicare patients by age, 2024

Chronic conditions among Margaret Chen's Medicare patients, 2024

  1. High cholesterol62%
  2. Arthritis47%
  3. High blood pressure45%
  4. Mood disorders34%
  5. Depression31%
  6. Osteoporosis30%
  7. Cancer20%
  8. Anxiety19%

Share of Medicare patients with each condition. A patient can have several.

Margaret 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 50

Patient panel by sex, all payers

  • Women89%
  • Men8%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Margaret Chen wrote 883 Medicare Part D claims in 2024

In 2024, Margaret Chen wrote 883 Medicare Part D claims for 174 patients. 81% of them were for generic drugs. CMS names the drug for 495 of them, across 24 drugs with 11 or more claims each, at $26,410 in total drug cost. In 2023, CMS named 308 claims across 15 drugs.

Part D claims, 2024883
Drugs named by CMS24
Total drug cost$26,410
Part D patients174

Margaret Chen's Part D claims by kind of drug, 2024

  • Generic712 claims81%
  • Brand-name and other171 claims19%

Margaret Chen'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.

Drug classes CMS tracks in Margaret Chen's Part D claims, 2024

  • Opioids2%17 of 883 claims
  • Antibiotics1%12 of 883 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3082024: 49561%

Drugs named by CMS: 24 in 2024, 15 in 2023.

See all prescribing by Margaret Chen

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

Margaret 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 Margaret Chen for performance year 2024, reported as part of a group. Margaret Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Margaret Chen as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Margaret Chen's MIPS scores, performance year 2024

  • 85of 100Final score
  • 81.1of 100Quality
  • 40of 100Improvement Activities
  • 71of 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

For MedTech and pharma teams

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Margaret Chen received $49 in industry payments from 2018 to 2025

CMS Open Payments shows 3 general payments to Margaret Chen from 3 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $18.

General payments to Margaret Chen by program year, 2018 to 2025

Companies that paid Margaret Chen the most, 2018 to 2025

Share is of all general payments to this clinician.

See all payments to Margaret Chen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Margaret Chen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Margaret 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 Margaret Chen's NPI number?

Margaret Chen's NPI number is 1427403617. It was assigned on April 26, 2016, and it is active in the NPI Registry.

What does Margaret Chen specialize in?

Margaret Chen is a family medicine physician in San Francisco, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Margaret Chen practice?

Margaret Chen practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Margaret Chen's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. Dmand AI also links Margaret Chen to 2 medical groups.

What is Margaret Chen's office phone number?

The practice phone on file for Margaret Chen is (415) 353-2733.

What is Margaret Chen's medical license number?

Margaret Chen holds California license A152850.

Which hospitals is Margaret Chen affiliated with?

Margaret Chen practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California. Margaret Chen is also affiliated with Zuckerberg San Francisco General Hospital and Trauma Center.

What medical group is Margaret Chen part of?

Margaret Chen is linked to UCSF Pediatrics. Dmand AI links Margaret Chen to 2 more medical groups.

Does Margaret Chen accept Medicare?

Yes. CMS data shows Margaret Chen billed Medicare for 305 services in 2024, and Margaret Chen accepts Medicare assignment.

Does Margaret Chen offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Margaret Chen as offering telehealth services.

What is Margaret Chen's MIPS score?

Margaret Chen's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.

Show 5 more questionsShow fewer questions

How many Medicare patients does Margaret Chen see?

CMS counts 149 Medicare patients who saw Margaret Chen in 2024, with an average age of 72.

What services does Margaret Chen bill to Medicare?

In 2024, Margaret Chen's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and office visit, established patient (99215).

What drugs does Margaret Chen prescribe most?

In 2024 Medicare Part D data, Margaret Chen's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.

Has Margaret Chen received payments from drug or device companies?

CMS Open Payments shows $49 in general payments to Margaret Chen from 3 companies from 2018 to 2025. The largest total came from Amgen Inc.

How long has Margaret Chen been practicing?

Margaret Chen graduated from medical school in 2016, 10 years ago.

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