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

Individual provider Hematology & Oncology Physician · NPI 1548233612

Matthew L Ryan, MD is a Hematology/Oncology in Green Bay, Wisconsin. Qualified in 2002, 24 years ago. Practices with Ascension NE Wisconsin, Inc, a 20-clinician group and accepts Medicare assignment. Licensed in Michigan and Wisconsin.

Years since qualifying
24
Licensed in
MI, WI
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.

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Practice location Address checks out

1726 Shawano Ave
Green Bay, WI 54303-3216
Phone: (920) 884-3135
Fax: (920) 884-3144
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence 50362 (WI)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 4301091673 (MI)

Record details

NPI number1548233612
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 9, 2006
Last updated in NPPESDecember 20, 2021
Certification dateDecember 20, 2021
Mailing address1726 Shawano Ave, Green Bay, WI 54303-3216

Medicare enrollment

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

Medicare specialtyHEMATOLOGY/ONCOLOGY
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Ascension Ne Wisconsin, Inc — 20 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Green Bay