DR. JOYCE SO MD, PHD
NPI 1649832353
Medical Genetics - Clinical Genetics (M.D.) in San Francisco, CA

Q: What is Joyce So's NPI number?

The NPI number for Joyce So is 1649832353. It was assigned to this individual provider in the NPPES registry on July 2, 2019.

Q: What is Joyce So's specialty?

The primary specialty registered for this NPI is Medical Genetics, specializing in Clinical Genetics (M.D.), with taxonomy code 207SG0201X.

Q: When was this NPI record last updated?

The NPPES record for Joyce So was last updated on July 2, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 02, 2019PECOS Enrolled

74.46/100

CMS Quality Rating

1825 4TH ST FL 6, SAN FRANCISCO, CA 94143(415) 476-2757 Get Directions Write a Review

NPPES record last updated: July 2, 2019. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Joyce So Md, Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOYCE SO MD, PHD (NPI 1649832353) is an individual clinical genetics (m.d.) provider in San Francisco, California, licensed in California (163203) and active in the NPI registry since July 2019. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1649832353

Entity TypeIndividualFemale

Primary Taxonomy207SG0201X

Provider Legal NameDR. JOYCE SOCredential: MD, PHD

Location Address1825 4TH ST FL 6San Francisco, CA 94143-2350

Mailing Address550 16th Street, 4th Floor, Mail Code 0706San Francisco, CA 94143

Phone(415) 476-2757

Sole ProprietorNo

Enumeration DateJuly 2, 2019

✔ NPI 1649832353 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyMedical Genetics · Clinical Genetics (M.D.)Allopathic & Osteopathic Physicians

Taxonomy Code207SG0201X

License✔ Licensed in CA · 163203

Definition

A clinical geneticist demonstrates competence in providing comprehensive diagnostic, management and counseling services for genetic disorders.

1825 4TH ST FL 6, San Francisco, CA 94143

Open in Google Maps ↗

Secondary Practice Location 1

Location 1550 16th Street, 4th floor, Mail code 0706San Francisco, CA 94143 · Phone (415) 000-0000

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Joyce So Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Joyce So reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Of California San Francisco

6.4 mi

Surgery

400 PARNASSUS AVE, MCB 300
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
5,645 clinicians in this Medicare group

NPI 1346329380 (415) 353-2161

Ucsf Medical Group Business Services

6.4 mi

Internal Medicine

400 PARNASSUS AVE
San Francisco, CA 94122

Reassigned Medicare billing, California enrollment
5,544 clinicians in this Medicare group

NPI 1477624104 (415) 353-2808

Ucsf Pediatrics Associates

6.4 mi

Pediatrics

505 PARNASSUS AVE
San Francisco, CA 94143

Reassigned Medicare billing, California enrollment
1,159 clinicians in this Medicare group

NPI 1376614016 (415) 353-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

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 G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

33 services14 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

26 services26 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.46/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

Improvement Activities

Cost

46.68

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MISS FEDNA MORENCY P.A.-C, ATC

Physician Assistant (Surgical)