Doctor profile · Federal record

Dr. Behfar Dianati, M.D.

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

  • NPI 1558580852
  • Accepts Medicare
  • MIPS 57.6 / 100 · 2023
  • 32 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
4550 Memorial Dr, Ste. 340
Belleville, IL 622265372
(618) 257-6200
fax (618) 257-6679
Additional location
1201 S Grand Blvd
Saint Louis, MO 631041016
(314) 617-2000

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
May 27, 2025
Year of graduation
1994 — 32 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Missouri #2007018749 · Illinois #036124202
Medicaid (2)
IL #1558580852 · MO #207340605

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1558580852. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,390
Distinct HCPCS
10
Medicare allowed
$175,901
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 325 167 $119
99497 Advance care planning, first 30 minutes 297 262 $75
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 236 207 $181
99239 Hospital discharge day management, more than 30 minutes 204 180 $114
99291 Critical care, first 30-74 minutes 121 45 $217
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 73 57 $79
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 45 42 $174
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 45 31 $105
99238 Hospital discharge day management, 30 minutes or less 29 28 $81
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 15 15 $133

In context: peer comparison

Among 13 peers in this city , average services per provider: 164. This provider delivers 8.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
5,761
Patients
1,288
Total drug cost
$256,345
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 889 187 $12,558
Eliquis (Apixaban) Brand 615 93 $185,097
Levothyroxine Sodium Generic 453 101 $6,209
Furosemide Generic 448 135 $3,122
Potassium Chloride Generic 416 86 $7,929
Gabapentin Generic 404 80 $8,057
Lisinopril Generic 322 63 $2,661
Metoprolol Succinate Generic 317 114 $5,664
Amlodipine Besylate Generic 306 85 $2,738
Carvedilol Generic 291 56 $3,190

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Behfar Dianati's medical specialty?
Dr. Behfar Dianati practices Hospitalist Physician in Belleville, IL.
Where does Dr. Behfar Dianati practice?
Dr. Behfar Dianati practices at 4550 Memorial Dr, Belleville, IL 622265372. Office phone: 6182576200.
What is Dr. Behfar Dianati's NPI?
Dr. Behfar Dianati's National Provider Identifier (NPI) is 1558580852, issued by NPPES.
Does Dr. Behfar Dianati accept Medicare assignment?
Yes. Dr. Behfar Dianati accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Behfar Dianati commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Advance care planning (HCPCS 99497); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.