Doctor profile · Federal record

Dr. John Sifuentes, M.D.

Internal Medicine Physician (CMS: Hospitalist) · Joliet, IL

  • NPI 1154433621
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1106 Neal Ave
Joliet, IL 604332548
(815) 727-8670
Mailing address
18507 Bellagio Cir
Tinley Park, IL 604774462

Credentials & registration

NPPES · NUCC
NPI registered
August 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207R00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154433621. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
781
Distinct HCPCS
4
Medicare allowed
$78,739
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 396 132 $82
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 224 86 $117
99239 Hospital discharge day management, more than 30 minutes 140 134 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 21 21 $178

In context: peer comparison

Among 14 peers in Joliet Internal Medicine Physician, average services per provider: 131. This provider delivers 6.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
156
Patients
139
Total drug cost
$1,517
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 27 27 $305
Prednisone Generic 24 24 $82
Atorvastatin Calcium Generic 17 0 $216
Cefdinir Generic 17 17 $213
Doxycycline Hyclate Generic 17 17 $348
Furosemide Generic 16 16 $81
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 14 14 $62
Metoprolol Succinate Generic 13 13 $137
Carvedilol Generic 11 11 $73

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. John Sifuentes's medical specialty?
Dr. John Sifuentes practices Internal Medicine Physician in Joliet, IL.
Where does Dr. John Sifuentes practice?
Dr. John Sifuentes practices at 1106 Neal Ave, Joliet, IL 604332548. Office phone: 8157278670.
What is Dr. John Sifuentes's NPI?
Dr. John Sifuentes's National Provider Identifier (NPI) is 1154433621, issued by NPPES.
Does Dr. John Sifuentes accept Medicare assignment?
Yes. Dr. John Sifuentes accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Sifuentes commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.