Dr. Corey S Maas , MD
Surgery - Plastic and Reconstructive Surgery • San Francisco, CA
Professional Overview & Biography Verified Profile Summary
Dr. Corey Maas, MD is a registered healthcare professional specializing in Surgery - Plastic and Reconstructive Surgery in San Francisco, CA. Practice services are available at 2400 CLAY ST under active NPI credentials.
Practice Location & Contact Primary Location
2400 Clay St
San Francisco, CA 941151809
Specialty Benchmarks & Practice Insights
Comparative analytics for Surgery - Plastic and Reconstructive Surgery in San Francisco, CA
Practicing in San Francisco, CA (381 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2026-03-24NUCC Taxonomy Code: 2086S0122X
A surgeon who specializes in plastic and reconstructive surgery.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
General Practice
Doctor of Medicine (M.D.)
Otolaryngology - Otolaryngology/Facial Plastic Surgery
Doctor of Medicine (M.D.)
Otolaryngology - Facial Plastic Surgery
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
NPI status registered as active in NPPES database
Registered at 2400 CLAY ST, SAN FRANCISCO, CA 941151809 (Tel: 4155677000)
Registered at 2400 CLAY ST, SAN FRANCISCO, CA 941151809 (Tel: 4155677000)
Recorded as COREY MAAS, M.D.
Surgery (License #G71163 in CA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
2400 Clay St
San Francisco, CA 941151809
Phone: 4155677000
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