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

Dr. Susan Marie Mason, DO

Individual provider Family Medicine Physician · NPI 1841464591

Dr. Susan Marie Mason, DO is an Internal Medicine in Cedar Rapids, Iowa. Graduated from West Virginia School of Osteopathic Medicine in 2007, 19 years ago. Practices with Larew Internal Medicine PLC, a 2-clinician group and accepts Medicare assignment. Licensed in Iowa and Pennsylvania.

Years since qualifying
19
Trained at
West Virginia School of Osteopathic Medicine
Licensed in
IA, PA
In the registry since
2008
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

4325 Williams Blvd
Cedar Rapids, IA 52404
Phone: (319) 368-8400
Fax: (319) 656-3319
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence DO04416 (IA)
Family Medicine Physician Taxonomy 207Q00000X · Licence OT011926 (PA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 4416 (IA)

Record details

NPI number1841464591
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 14, 2008
Last updated in NPPESNovember 8, 2018
Mailing address4325 Williams Blvd, Cedar Rapids, IA 52404

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolWEST VIRGINIA SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 2007 (19 years in practice)
Group practice Larew Internal Medicine Plc — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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