Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Dennis Whittier Hartman, OD

Individual provider Optometrist · NPI 1922078294

Dr. Dennis Whittier Hartman, OD is an Optometry in Merced, California. Graduated from Pacific University - College of Optometry in 1989, 37 years ago. Practices with Kenneth R Grossman M D Inc, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
37
Trained at
Pacific University - 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

580 Collins Dr
Merced, CA 95348-3121
Phone: (209) 383-0989
Fax: (209) 383-6836
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 9253T (CA)

Record details

NPI number1922078294
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 26, 2006
Last updated in NPPESJanuary 11, 2023
Certification dateJanuary 11, 2023

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolPACIFIC UNIVERSITY - COLLEGE OF OPTOMETRY
Graduated 1989 (37 years in practice)
Group practice Kenneth R Grossman M D Inc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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