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

Greg Marco, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1427098433

Greg Marco, MD is a Critical Care (Intensivists) in Grand Rapids, Michigan. Graduated from University of Iowa, Rj & L Carver College of Medicine in 1996, 30 years ago. Practices with Spectrum Health Primary Care Partners, a 2,303-clinician group and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
30
Trained at
University of Iowa, Rj & L Carver College of Medicine
Licensed in
MI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

100 Michigan St NE Ste 8861
Grand Rapids, MI 49503-2560
Phone: (616) 391-2802
Fax: (616) 391-0801
Show map & directions

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

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 4301080028 (MI)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 4301080028 (MI)

Record details

NPI number1427098433
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESFebruary 26, 2021
Certification dateFebruary 26, 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 specialtyCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF IOWA, RJ & L CARVER COLLEGE OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Spectrum Health Primary Care Partners — 2303 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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