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

Matthew Krewer, OD

Individual provider Optometrist · NPI 1003269721

Matthew Krewer, OD is an Optometry in Waterloo, Iowa. Qualified in 2016, 10 years ago. Practices with Cedar Valley Medical Specialists PC, a 76-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Iowa and Washington.

Years since qualifying
10
Licensed in
IA, WA
In the registry since
2016
Specialties on file
2
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

909 E San Marnan Dr
Waterloo, IA 50702-5611
Phone: (319) 233-2020
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1409 W 1st St, Cedar Falls, IA 50613-2115 — (319) 268-2020

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 097765 (IA)
Optometrist Taxonomy 152W00000X · Licence OD60679692 (WA)

Record details

NPI number1003269721
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 18, 2016
Last updated in NPPESJanuary 31, 2023
Certification dateJanuary 31, 2023
Mailing address909 E San Marnan Dr, Waterloo, IA 50702-5611

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Cedar Valley Medical Specialists Pc — 76 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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