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

John Sifuentes, MD

Individual provider Internal Medicine Physician · NPI 1154433621

John Sifuentes, MD is an Internal Medicine in Joliet, Illinois. Qualified in 1997, 29 years ago. Practices with Sound Physicians of Massachusetts Inc, a 69-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
29
Licensed in
IL
In the registry since
2006
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

1106 Neal Ave
Joliet, IL 60433-2548
Phone: (815) 727-8670
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X (IL)

Record details

NPI number1154433621
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 31, 2006
Last updated in NPPESJuly 8, 2007
Mailing address18507 Bellagio Cir, Tinley Park, IL 60477-4462

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Sound Physicians Of Massachusetts Inc — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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