Doctor profile · Federal record

Dr. Guadalupe Sitjar, MD

Internal Medicine Physician (CMS: Internal Medicine) · Gurnee, IL

  • NPI 1497870315
  • Accepts Medicare
  • 56 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
135 North Greenleaf, Suite #224
Gurnee, IL 600313371
(847) 336-9159
fax (847) 336-9159

Credentials & registration

NPPES · NUCC
NPI registered
March 2007 — 19 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1970 — 56 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 1497870315. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
402
Distinct HCPCS
9
Medicare allowed
$39,348
HCPCS Description Services Patients Avg allowed
G0181 Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow 88 42 $108
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 77 45 $133
99497 Advance care planning, first 30 minutes 58 56 $86
99491 Chronic care management services for two or more chronic conditions, first 30 minutes provided personally by health care professional, per calendar month 40 34 $88
99344 Residence visit for new patient with moderate level of medical decision making, per day, if using time, at least 60 minutes 37 37 $149
G0179 Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a 35 26 $43
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 33 29 $54
99406 Smoking and tobacco use intensive counseling, 4-10 minutes 19 13 $15
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 15 15 $134

In context: peer comparison

Among 11 peers in Gurnee Internal Medicine Physician, average services per provider: 92. This provider delivers 4.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
23
Patients
0
Total drug cost
$299
Drug Type Claims Patients Total cost
Amlodipine Besylate Generic 12 0 $176
Atorvastatin Calcium Generic 11 0 $123

Frequently asked questions

Auto-generated from federal data
What is Dr. Guadalupe Sitjar's medical specialty?
Dr. Guadalupe Sitjar practices Internal Medicine Physician in Gurnee, IL.
Where does Dr. Guadalupe Sitjar practice?
Dr. Guadalupe Sitjar practices at 135 North Greenleaf, Gurnee, IL 600313371. Office phone: 8473369159.
What is Dr. Guadalupe Sitjar's NPI?
Dr. Guadalupe Sitjar's National Provider Identifier (NPI) is 1497870315, issued by NPPES.
Does Dr. Guadalupe Sitjar accept Medicare assignment?
Yes. Dr. Guadalupe Sitjar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Guadalupe Sitjar commonly perform?
Top Medicare-reported procedures in 2023: Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow (HCPCS G0181); Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Advance care planning (HCPCS 99497). Source: CMS Medicare Physician & Other Practitioners file.