William Sierra, MD
Ophthalmology
20+ years in practiceNPI: 1275552796Licensed in CA
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Credentials & Recognition
Specialties
Ophthalmology
NPI sub-specialties
Ophthalmology207W00000X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
20+ years
Estimated from NPI enumeration date
Frequently Asked Questions about Dr. William Sierra, MD
Where does Dr. William Sierra, MD practice?+
Dr. William Sierra, MD practices in California, CA.
What is Dr. William Sierra, MD's phone number?+
Dr. William Sierra, MD's practice phone is 323-909-0041. Office contact information is verified on the PBCMMG profile.
What does Dr. William Sierra, MD specialize in?+
Dr. William Sierra, MD's primary specialty is Ophthalmology.
Is Dr. William Sierra, MD board certified?+
Board certification status for Dr. William Sierra, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. William Sierra, MD been practicing?+
Dr. William Sierra, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. William Sierra, MD's NPI number?+
Dr. William Sierra, MD's National Provider Identifier (NPI) is 1275552796, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
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