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

Melissa A Martinez Mateo, MD

Individual provider Gastroenterology Physician · NPI 1003124280

Melissa A Martinez Mateo, MD is a Gastroenterology in Carbondale, Illinois. Qualified in 2006, 20 years ago. Practices with Northwestern Medical Faculty Foundation, a 4,394-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
20
Licensed in
IL, IN
In the registry since
2010
Specialties on file
4
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

2601 W Main St
Carbondale, IL 62901-1031
Phone: (618) 549-5361
Fax: (618) 351-4878
Show map & directions

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

Additional practice locations (2)

  • 2601 W Main St, Carbondale, IL 62901-1031 — (618) 351-7300
  • 15300 West Ave Ste 210, Orland Park, IL 60462-4686 — (708) 226-2870

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 01072250A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 125056433 (IL)
Gastroenterology Physician Taxonomy 207RG0100X · Licence 036139158 (IL)
Internal Medicine Physician Taxonomy 207R00000X · Licence 11015804A (IN)

Record details

NPI number1003124280
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 21, 2010
Last updated in NPPESDecember 4, 2025
Certification dateDecember 4, 2025

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice Northwestern Medical Faculty Foundation — 4394 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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