Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. David Ashley Swearingen, OD

Individual provider Optometrist · NPI 1912964834

Dr. David Ashley Swearingen, OD is an Optometry in San Dimas, California. Graduated from Southern California College of Optometry in 2000, 26 years ago. Practices with Spectrum Eyecare Optometry Inc, an 8-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Trained at
Southern California College of Optometry
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.

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Practice location Address checks out

425 W Bonita Ave Ste 110B
San Dimas, CA 91773-2541
Phone: (909) 394-0462
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence OPT11528T (CA)

Record details

NPI number1912964834
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESMarch 7, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolSOUTHERN CALIFORNIA COLLEGE OF OPTOMETRY
Graduated 2000 (26 years in practice)
Group practice Spectrum Eyecare Optometry Inc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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