Joyce So, MD, PHD
Clinical Genetics (M.D.) Physician · San Francisco, CA
Joyce So, MD, PHD is a clinical genetics (m.d.) physician with a practice address in San Francisco, California, and NPI 1649832353, issued on Jul 2, 2019. Check the license (California 163203, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joyce So
- Credential
- MD, PHD
- Primary taxonomy
- Clinical Genetics (M.D.) Physician 207SG0201X
- License number
- 163203 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1825 4TH St FL 6, San Francisco, CA 94143
- Phone
- (415) 476-2757
- Enumerated
- Jul 2, 2019
- Record last updated
- Jul 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest clinical genetics (m.d.) physician records → All 151 in California → Look up another NPI →
Also registered at 1825 4TH St FL 6
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shreya Agarwal, MDPediatric Hematology & Oncology Physician1841654944
- Hind Al Saif, MDClinical Genetics (M.D.) Physician1831403211
- Yu An, LCGCGenetic Counselor (M.S.)1972116937
- Austin Angelidakis, NPNurse Practitioner1326700287
- Karyn Austin, MD/PHDPediatric Cardiology Physician1639564370
- Serine Avagyan, MD, PHDPediatric Hematology & Oncology Physician1447540547
Verify Joyce So in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 163203Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% fewer Medicare Part D claims than the average clinical genetics (m.d.) physician in 2024
13 Medicare Part D claims, against an average of 59 among the 193 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Sirolimus13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Joyce So among 151 clinical genetics (m.d.) physician records in California
Joyce So, MD, PHD is one of 151 clinical genetics (m.d.) physician records with a practice address in California. 55% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 92% of them.
- NPI issued2019 · 92% of these records are older, 5% newer
- In a Medicare fileYes · 55% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2019 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207SG0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Genetics (M.D.) Physician providers in California
There are 151 clinical genetics (m.d.) physician records in California.
All 151 in California → Every provider in San Francisco → Clinical Genetics (M.D.) Physician nationwide →
The 8 clinical genetics (m.d.) physician records with the nearest ZIP codes
- Hind Al Saif, MDSan Francisco, CA 941431831403211
- Randeep Brar, M.D.San Francisco, CA 941431033490438
- Jose Camacho, MDSan Francisco, CA 941431255548327
- Irene Chang, M.D.San Francisco, CA 941431033539671
- Reva Frankel, MDSan Francisco, CA 941431134652894
- Renata Gallagher, M.D.San Francisco, CA 941431699880856
- Soghra Jougheh Doust, MDSan Francisco, CA 941431518719806
- Seymour Packman, M.D.San Francisco, CA 941431972545275
Common questions
What is Joyce So, MD, PHD's NPI number?
Joyce So, MD, PHD's National Provider Identifier (NPI) is 1649832353, issued on Jul 2, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joyce So, MD, PHD located?
The NPPES record lists a practice address at 1825 4TH St FL 6, San Francisco, CA, 94143. Phone: (415) 476-2757. Providers update this record themselves, so call before visiting.
How can I verify Joyce So, MD, PHD's license?
NPPES lists California license number 163203, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joyce So, MD, PHD prescribe under Medicare Part D?
In 2024, Joyce So, MD, PHD had 13 Medicare Part D claims; the average among clinical genetics (m.d.) physician prescribers was 59. Part D covers Medicare prescriptions only.
What is Joyce So, MD, PHD's MIPS final score?
The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.