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

Mary Margaret Dagen, MD

Individual provider Family Medicine Physician · NPI 1831341130

Mary Margaret Dagen, MD is registered under Family Practice in Grand Rapids, Michigan. Qualified in 2006, 20 years ago. Practices with Spectrum Health Primary Care Partners, a 2,303-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
20
Licensed in
MI
In the registry since
2008
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4100 Lake Dr SE Ste B01
Grand Rapids, MI 49546-8292
Phone: (616) 267-7400
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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 4301090849 (MI)

Record details

NPI number1831341130
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 17, 2008
Last updated in NPPESFebruary 24, 2021
Certification dateFebruary 24, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Spectrum Health Primary Care Partners — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients78
Services billed 208 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $88,557 55 payments
Consulting Fee $6,815 4 payments
Travel and Lodging $5,414 42 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $2,491 52 payments · a meal or drink at a meeting or visit, not a fee
Education $129 4 payments · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Spectrum Health Hospital · Grand Rapids, MI · listed as Spectrum Health Hospital

Colleagues at Spectrum Health Primary Care Partners

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2303 clinicians in the practice; 12 are shown here.

Other providers in Grand Rapids