Doctor profile · Federal record

Dr. Dario Villamar, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · New Lenox, IL

  • NPI 1548791437
  • Accepts Medicare
  • MIPS 87.7 / 100 · 2023
  • 9 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1850 Silver Cross Blvd
New Lenox, IL 604519508
(815) 300-1400
fax (815) 485-4830
Additional location
505 East 70Th St, Weill Cornell Internal Medicine Associates
New York, NY 10021
(212) 746-3587
fax (212) 746-8051
Additional location
5841 S Maryland Ave # Mc2115
Chicago, IL 606371443
(773) 702-2731
fax (773) 702-0963
Mailing address
180 Harvester Dr Ste 110
Burr Ridge, IL 605276686

Credentials & registration

NPPES · NUCC
NPI registered
March 2017 — 9 yrs on file
Profile last updated
January 6, 2024
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Illinois #036.152166

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548791437. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
143
Distinct HCPCS
5
Medicare allowed
$19,723
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 40 18 $123
99205 New patient office or other outpatient visit, 60-74 minutes 37 37 $191
99213 Established patient office or other outpatient visit, 20-29 minutes 23 16 $69
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 23 21 $179
99214 Established patient office or other outpatient visit, 30-39 minutes 20 15 $102

In context: peer comparison

Among 2 peers in New Lenox Hematology & Oncology Physician, average services per provider: 98. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
72
Patients
38
Total drug cost
$903
Drug Type Claims Patients Total cost
Prochlorperazine Maleate Generic 27 20 $373
Ondansetron Hcl Generic 20 18 $255
Acyclovir Generic 13 0 $233
Prednisone Generic 12 0 $42

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Dario Villamar's medical specialty?
Dr. Dario Villamar practices Hematology & Oncology Physician in New Lenox, IL.
Where does Dr. Dario Villamar practice?
Dr. Dario Villamar practices at 1850 Silver Cross Blvd, New Lenox, IL 604519508. Office phone: 8153001400.
What is Dr. Dario Villamar's NPI?
Dr. Dario Villamar's National Provider Identifier (NPI) is 1548791437, issued by NPPES.
Does Dr. Dario Villamar accept Medicare assignment?
Yes. Dr. Dario Villamar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Dario Villamar commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.