Dr. Joyce So, MD, PhD

  • San Francisco, CA
  • Clinical genetics (m.d.) physician
NPI1649832353
Medicare services, 2024
59
Medicare patients, 2024
37
Part D claims, 2024
13
Publications
2
MIPS score, 2024
85
Practice address
505 Parnassus Ave, Box 0296, San Francisco, CA 94143
Practice phone
Call (415) 353-2733
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCSF Helen Diller Medical Center at Parnassus Heights

Hospital · San Francisco, California

See all 7 affiliations

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Dr. Joyce So is a clinical genetics (m.d.) physician in San Francisco, California

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

Dr. So's NPI, 1649832353, was assigned on July 2, 2019. Dr. So graduated from University of Toronto Faculty of Medicine in 2001. Dr. So holds California license 163203.

NPI and contact details
NPI enumeration date
July 2, 2019
NPI status
Active
Practice phone
(415) 353-2733
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
51
Medical school graduation
2001

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data

Dr. Joyce So practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California

Dr. So'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

Dr. Joyce So is affiliated with 4 sites of care and 3 medical groups

Dr. So's primary practice is UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California, part of University of California Health. The medical group on file is UCSF Pediatrics. Dmand AI also links Dr. So to 3 more group practices and clinics and 2 medical groups, each named with a free account.

See all 7 affiliations for Dr. So

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

Dmand AI tracks the EHR system at Dr. Joyce So's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. So practices, 4 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
+3 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Joyce So is one of 144 clinical genetics (m.d.) physicians in California

Clinical genetics (m.d.) is Dr. So's primary specialty in the NPI Registry, under taxonomy code 207SG0201X. Dr. So is licensed in California.

Specialties and state licenses

  • Clinical genetics (m.d.), CaliforniaPrimaryLicense 163203 · 2019 to 2027 · taxonomy 207SG0201X

Clinical genetics (m.d.) physicians near Dr. So

Counts of clinical genetics (m.d.) 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

Dr. Joyce So billed Medicare for 59 services in 2024

CMS data shows 59 Medicare services from Dr. So across 2 procedure codes in 2024, for 37 Medicare patients. Medicare paid $4,760 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202459
Medicare patients37
Paid by Medicare$4,760
Procedure codes2

Dr. So's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Other services
2023: 02024: 33
Office and hospital visits
2023: 182024: 2644%

Dr. So compared with the California median for clinical genetics (m.d.) physicians, 2024

  • Dr. So
  • California median
Medicare services
59vs 262.3 times
Medicare patients
37vs 2085% above
Part D claims
13vs 2138% below

Medians across 59 clinical genetics (m.d.) physicians in California with Dmand AI profiles that report each measure.

Dr. So'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 Dr. So

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

Dr. Joyce So treated 37 Medicare patients in 2024, average age 62

CMS counts 37 Medicare patients who saw Dr. So in 2024. The largest group is 65 to 74, with 15 patients. 68% of them have high cholesterol, and 62% have high blood pressure. 49% are also on Medicaid. Their average risk score is 1.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. So's median patient age at 49, with 50% women.

Medicare patients, 202437
Average age62
Average risk score1.56
Also on Medicaid49%

Dr. So's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. So's Medicare patients by sex, 2024

  • Women2259%
  • Men1541%

Chronic conditions among Dr. So's Medicare patients, 2024

  1. High cholesterol68%
  2. High blood pressure62%
  3. Anxiety43%
  4. Arthritis32%
  5. Cancer30%
  6. Depression30%
  7. Mood disorders30%

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

Dr. So's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 49

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Dr. Joyce So wrote 13 Medicare Part D claims in 2024

In 2024, Dr. So wrote 13 Medicare Part D claims. 100% of them were for generic drugs. They cover 1 drug, with $28,313 in total drug cost.

Part D claims, 202413
Drugs named by CMS1
Total drug cost$28,313

Dr. So'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.

See all prescribing by Dr. So

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

Dr. Joyce So 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 Dr. So for performance year 2024, reported as part of a group.

Dr. So'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.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

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Dr. Joyce So has 2 publications on record

Dmand AI links 2 papers to Dr. So, published from 2022 to 2023. Dr. So's most frequent co-author is Maggie W. Waung, MD, PhD.

Papers2
Years published2022 to 2023

Dr. So's most frequent co-authors

Recent publications by Dr. So

See all 2 publications and co-authors

See who Dr. So researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. So works with, so you can find a warm path to the right clinical genetics (m.d.) physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Joyce So received $165 in industry payments in 2019

CMS Open Payments shows 1 general payment to Dr. So from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Recordati_rare_diseases_inc. paid the most, $165.

Companies that paid Dr. So the most, 2019 to 2019

Share is of all general payments to this clinician.

See all payments to Dr. So

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

Dr. Joyce So graduated from University of Toronto Faculty of Medicine

Dr. So graduated from University of Toronto Faculty of Medicine in 2001.

  1. Medical schoolUniversity of Toronto Faculty of Medicine

Source: Dmand AI Professional Profile Data

Dr. Joyce So accepts plans from 9 insurance carriers

Dr. So is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare
  • Molina
  • +1 more carriersWith a free account

Plan types Dr. So accepts, by number of carriers

  1. Medicare9
  2. PPO5
  3. HMO3
  4. POS3
  5. EPO1
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Joyce So'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 percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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 Dr. Joyce So

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Joyce So's NPI number?

Dr. Joyce So's NPI number is 1649832353. It was assigned on July 2, 2019, and it is active in the NPI Registry.

What kind of doctor is Dr. Joyce So?

Dr. Joyce So is a clinical genetics (m.d.) physician in San Francisco, California. The primary specialty in the NPI Registry is Clinical Genetics (M.D.) Physician (taxonomy code 207SG0201X).

Where does Dr. Joyce So practice?

Dr. So practices at 505 Parnassus Ave, Box 0296, San Francisco, CA 94143. Dr. So'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 Dr. So to 3 group practices and clinics and 2 medical groups.

What is Dr. Joyce So's office phone number?

The practice phone on file for Dr. So is (415) 353-2733.

What is Dr. Joyce So's medical license number?

Dr. So holds California license 163203.

Which hospitals is Dr. Joyce So affiliated with?

Dr. So practices at UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California.

What medical group is Dr. Joyce So part of?

Dr. So is linked to UCSF Pediatrics. Dmand AI links Dr. So to 2 more medical groups.

Does Dr. Joyce So accept Medicare?

Yes. CMS data shows Dr. So billed Medicare for 59 services in 2024.

What is Dr. Joyce So's MIPS score?

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

How many Medicare patients does Dr. Joyce So see?

CMS counts 37 Medicare patients who saw Dr. So in 2024, with an average age of 62.

Show 8 more questionsShow fewer questions

What services does Dr. Joyce So bill to Medicare?

In 2024, Dr. So's most billed Medicare services were medicare service (G2212) and office visit, new patient (99205).

Where did Dr. Joyce So go to medical school?

Dr. So graduated from University of Toronto Faculty of Medicine in 2001.

What drugs does Dr. Joyce So prescribe most?

In 2024 Medicare Part D data, Dr. So's most prescribed drugs by claims were Sirolimus.

Has Dr. Joyce So received payments from drug or device companies?

CMS Open Payments shows $165 in general payments to Dr. So from 1 company from 2019 to 2019. The largest total came from Recordati_rare_diseases_inc.

How long has Dr. Joyce So been practicing?

Dr. So graduated from medical school in 2001, 25 years ago.

Does Dr. Joyce So do research?

Dmand AI links 2 publications to Dr. So, published from 2022 to 2023.

Who does Dr. Joyce So publish with?

Dr. So's most frequent co-authors are Maggie W. Waung, MD, PhD (1 shared paper).

What insurance does Dr. Joyce So accept?

Dr. So is in network with 9 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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