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

Dr. Ray A Lassen, OD

Individual provider Optometrist · NPI 1275523680

Dr. Ray A Lassen, OD is an Optometry in Doniphan, Missouri. Graduated from University of Missouri St Louis - School of Optometry in 1987, 39 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
39
Trained at
University of Missouri St Louis - School of Optometry
Licensed in
MO
In the registry since
2005
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

1 Oak Tree Vlg Ste 200
Doniphan, MO 63935-1901
Phone: (573) 996-7529
Fax: (573) 996-4162
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence T02728 (MO)

Record details

NPI number1275523680
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedOctober 26, 2005
Last updated in NPPESJune 29, 2010
Mailing address1 Oak Tree Vlg, Ste 200, Doniphan, MO 63935-1901

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolUNIVERSITY OF MISSOURI ST LOUIS - SCHOOL OF OPTOMETRY
Graduated 1987 (39 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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