Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Howard H Ellenberger, OD, PHD

Individual provider Optometrist · NPI 1689755605

Dr. Howard H Ellenberger, OD, PHD is an Optometrist in San Rafael, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

901 A St Ste C
San Rafael, CA 94901-3043
Phone: (415) 453-8906
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OPT 13171 T (CA)

Record details

NPI number1689755605
Entity typeIndividual (Type 1)
GenderMale
Credentials OD , PHD
Sole proprietorNo
NPI enumeratedOctober 17, 2006
Last updated in NPPESJuly 8, 2007

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