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

Leidhy Mariana Montecinos, MD

Individual provider Internal Medicine Physician · NPI 1336875392

Leidhy Mariana Montecinos, MD is an Internal Medicine in Forsyth, Illinois. Qualified in 2018, 8 years ago. Practices with Decatur Memorial Hospital, a 169-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
8
Licensed in
IL
In the registry since
2022
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

241 W Weaver Rd Ste 210
Forsyth, IL 62535-9769
Phone: (217) 876-5600
Fax: (217) 876-5664
Show map & directions

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

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X
Internal Medicine Physician Taxonomy 207R00000X · Licence 036175298 (IL)

Record details

NPI number1336875392
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 1, 2022
Last updated in NPPESNovember 19, 2025
Certification dateNovember 19, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Decatur Memorial Hospital — 169 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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