Dr. Thomas William Gaither , MD
Urology • San Francisco, CA
Professional Overview & Biography Verified Profile Summary
Dr. Thomas Gaither, MD is a certified Urology practicing in San Francisco, CA. With approximately 8 years of clinical experience since graduating from University Of California, San Francisco School Of Medicine in 2018, Dr. Gaither delivers high-quality medical care to the local community at 400 PARNASSUS AVE # A610.
Dr. Gaither maintains professional affiliations with University Of California San Francisco, Ucsf Medical Group Business Services, University Of California Sfgh Medical Group and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.
Practice Location & Contact Primary Location
400 Parnassus Ave # A610
San Francisco, CA 941432202
Medicare Profile & Education
University Of California, San Francisco School Of Medicine
2018
✓ Accepts Assignment
Telehealth Services Available
Specialty Benchmarks & Practice Insights
Comparative analytics for Urology in San Francisco, CA
Practicing in San Francisco, CA (1624 Statewide)
✓ Offers Virtual Consultations
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Clinical Seniority & Experience Comparison
Medical Specialties & State Licenses
CMS Verified: 2025-11-03NUCC Taxonomy Code: 208800000X
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.
Hospital & Practice Group Affiliations
Ucsf Medical Group Business Services
505 Parnassus Ave, San Francisco, CA 941432204
Phone: 4154761000
Ucsf Medical Group Business Services
521 Parnassus Ave, San Francisco, CA 941432204
Phone: 4154761000
University Of California San Francisco
2330 Post St, San Francisco, CA 941153465
Phone: 4154764029
University Of California Sfgh Medical Group
1001 Potrero Ave, San Francisco, CA 941103518
Phone: 4154763372
Ucsf Medical Group Business Services
400 Parnassus Ave, San Francisco, CA 941432202
Ucsf Medical Group Business Services
505 Parnassus Ave, San Francisco, CA 941432204
Phone: 4154721000
Secondary Practice Locations
1001 Potrero Ave Bldg 5
San Francisco, CA 941103518
Phone: 6282068000
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Urology
Doctor of Medicine (M.D.), Master of Science
Urology
Doctor of Medicine (M.D.)
Urology
Doctor of Medicine (M.D.)
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.), Master of Science
Urology
Doctor of Medicine (M.D.)
Urology
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Recorded as THOMAS GAITHER, MD
Registered at 400 PARNASSUS AVE # A610, SAN FRANCISCO, CA 941432202 (Tel: 4153532200)
Registered at 400 PARNASSUS AVE # A610, SAN FRANCISCO, CA 941432202 (Tel: 4153532200)
Recorded as THOMAS GAITHER CASTELLANOS, MD
Registered at 200 UCLA MEDICAL PLZ STE 170, LOS ANGELES, CA 900958344 (Tel: 3107947700)
Registered at 5767 W CENTURY BLVD STE 400, LOS ANGELES, CA 900455631
Urology (License #A166338 in CA)
NPI status registered as active in NPPES database
Registered at 757 WESTWOOD PLAZA, UROLOGY, LOS ANGELES, CA 90095 (Tel: 3107948492)
Registered at 757 WESTWOOD PLAZA, UROLOGY, LOS ANGELES, CA 90095
Recorded as THOMAS GAITHER CASTELLANOS
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
Verified patient ratings, medical care experiences, and facility photos
Sign in to leave a review for Dr. Thomas Gaither
Only verified registered users can submit ratings, post feedback, and upload facility photos.
NPI Administrative Meta
Mailing Address
400 Parnassus Ave # A610
San Francisco, CA 941432202
Phone: 4153532200
This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.