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

Mark W Armstrong, DO

Individual provider Family Medicine Physician · NPI 1932104882

Mark W Armstrong, DO is a Family Practice in Sparta, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 1984, 42 years ago. Practices with Spectrum Health Hospitals, a 165-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
42
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2005
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.

See every abbreviation used in this directory →

Practice location Address checks out

2111 12 Mile Rd NW
Sparta, MI 49345-9754
Phone: (616) 391-8470
Fax: (616) 391-8495
Show map & directions

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

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 5101008843 (MI)

Record details

NPI number1932104882
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 16, 2005
Last updated in NPPESFebruary 24, 2021
Certification dateFebruary 24, 2021
Mailing address100 Michigan St Ne, Mc 845, Grand Rapids, MI 49503-2560

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1984 (42 years in practice)
Group practice Spectrum Health Hospitals — 165 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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