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Edit this profileWhere to find Joyce So, MD, PhD
- San Francisco location main office
1825 4Th St Fl 6, San Francisco, CA 94143 - San Francisco location
550 16th Street, 4th floor, Mail code 0706, San Francisco, CA 94143
About Dr. So
Joyce So, MD, PhD practices clinical genetics in San Francisco, CA. Medicare claims data shows Joyce provided 59 services to 40 patients. The services billed most often include prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. The provider's National Provider Identifier (NPI) is 1649832353.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (415) 476-2757
- Email not available
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Practice Locations
1825 4TH ST FL 6
San Francisco, CA 94143
550 16th Street, 4th floor Mail code 0706
San Francisco, CA 94143
Procedures Most Often Billed to Medicare
59 services · 40 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Billing code | G2212 |
33 | Too few peers to compare |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
26 | More often than most peers in Clinical Genetics |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other clinical geneticses at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is Dr. So?
Dr. So is a clinical genetics in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. So's address?
Dr. So is listed at 1825 4Th St Fl 6, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. So?
The number on file is (415) 476-2757. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. So?
Dr. So's National Provider Identifier is 1649832353. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How much experience does Dr. So have?
Dr. So has 7+ years experience. Registered with an NPI since 2019. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Dr. So perform?
According to Medicare billing data, Dr. So the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. So's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. So. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.