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

Dr. Siju T Chacko, MD

Individual provider Internal Medicine Physician · NPI 1720017262

Dr. Siju T Chacko, MD is an Infectious Disease in Merrillville, Indiana. Qualified in 1994, 32 years ago. Practices with Infectious Disease Specialists PC, a 12-clinician group and accepts Medicare assignment. Licensed in Illinois and Indiana.

Years since qualifying
32
Licensed in
IL, IN
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

200 E 86th Pl
Merrillville, IN 46410-6258
Phone: (219) 972-1547
Fax: (219) 972-1641
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 01064885A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036101193 (IL)

Record details

NPI number1720017262
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 30, 2006
Last updated in NPPESMay 23, 2024
Certification dateMay 23, 2024

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Infectious Disease Specialists Pc — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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