ProPublica

Journalism in the Public Interest

Prescriber Checkup

Prescriber Checkup » Illinois » Internal Medicine

Top Internal Medicine Prescribers in Illinois

Top Prescribers

Providers are grouped by the primary specialty they listed when applying for a national health ID number. This doesn’t necessarily mean the person has special training or certification. Specialty is self-reported by providers and may have changed. Patients and claims shown are for Medicare Part D only.

Prescriber Claims Filled Total Cost Medicare Part D Patients Claims for Brand Name Drugs Brand Name Drugs Prescription Price
ROBIA BYAS M.D.

Internal Medicine

17,879

$788K

854
752 are 65+

12%
prescriptions for brand name drugs

Avg: 21%

$44
Average prescription price

Avg: $64

DAVID OLMSTEAD M.D.

Internal Medicine

17,869

$1M

947
865 are 65+

15%
prescriptions for brand name drugs

Avg: 21%

$56
Average prescription price

Avg: $64

MICHELLE JENKINS MD

Internal Medicine

17,842

$878K

533
357 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$49
Average prescription price

Avg: $64

GREGORIO ROSENSTEIN MD

Internal Medicine

17,802

$1.04M

614
471 are 65+

23%
prescriptions for brand name drugs

Avg: 21%

$59
Average prescription price

Avg: $64

MICHAEL MANDIS MD

Internal Medicine

17,687

$846K

664
571 are 65+

24%
prescriptions for brand name drugs

Avg: 21%

$48
Average prescription price

Avg: $64

KEVIN GARNER M.D.

Internal Medicine

17,592

$1.09M

625
510 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$62
Average prescription price

Avg: $64

DHARAM ANAND M.D.

Internal Medicine

17,592

$1.02M

622
417 are 65+

18%
prescriptions for brand name drugs

Avg: 21%

$58
Average prescription price

Avg: $64

SATINDER DALAWARI MD

Internal Medicine

17,488

$991K

458
301 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$57
Average prescription price

Avg: $64

PHILIP BRANSHAW MD

Internal Medicine

17,462

$1.04M

723
633 are 65+

19%
prescriptions for brand name drugs

Avg: 21%

$60
Average prescription price

Avg: $64

TIMOTHY CHAMBERLAIN M.D.

Internal Medicine

17,406

$1.02M

292
163 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$59
Average prescription price

Avg: $64

CHARLES BRIKHA M.D.

Internal Medicine

17,348

$1.12M

393
318 are 65+

31%
prescriptions for brand name drugs

Avg: 21%

$64
Average prescription price

Avg: $64

FELIKS MAVASHEV MD

Internal Medicine

17,344

$1.23M

409
282 are 65+

33%
prescriptions for brand name drugs

Avg: 21%

$71
Average prescription price

Avg: $64

SUMITHA PANICKER M.D.

Internal Medicine

17,320

$970K

451
404 are 65+

23%
prescriptions for brand name drugs

Avg: 21%

$56
Average prescription price

Avg: $64

CRISANTO REYES M.D.

Internal Medicine

17,314

$809K

565
393 are 65+

17%
prescriptions for brand name drugs

Avg: 21%

$47
Average prescription price

Avg: $64

RIMMA POLOTSKAYA MD

Internal Medicine

17,291

$1.26M

348
314 are 65+

37%
prescriptions for brand name drugs

Avg: 21%

$73
Average prescription price

Avg: $64

CHRISTOPHER GREEN M.D.

Internal Medicine

17,173

$1.53M

780
722 are 65+

29%
prescriptions for brand name drugs

Avg: 21%

$89
Average prescription price

Avg: $64

EUGENE DUST M.D.

Internal Medicine

17,162

$757K

600
553 are 65+

17%
prescriptions for brand name drugs

Avg: 21%

$44
Average prescription price

Avg: $64

WON KIM M.D.

Internal Medicine

17,106

$763K

551
466 are 65+

17%
prescriptions for brand name drugs

Avg: 21%

$45
Average prescription price

Avg: $64

RAJAN PATEL M.D.

Internal Medicine

17,037

$1.23M

976
911 are 65+

22%
prescriptions for brand name drugs

Avg: 21%

$72
Average prescription price

Avg: $64

KETAN PATEL MD

Internal Medicine

16,982

$679K

593
518 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$40
Average prescription price

Avg: $64

DAVID KOWALSKI M.D.

Internal Medicine

16,882

$839K

599
524 are 65+

16%
prescriptions for brand name drugs

Avg: 21%

$50
Average prescription price

Avg: $64

OUEDRAEGO BERNARD MD

Internal Medicine

16,860

$834K

387
215 are 65+

21%
prescriptions for brand name drugs

Avg: 21%

$49
Average prescription price

Avg: $64

PETER CHOU MD

Internal Medicine

16,841

$1.15M

465
420 are 65+

24%
prescriptions for brand name drugs

Avg: 21%

$68
Average prescription price

Avg: $64

LAWRENCE JENNINGS MD

Internal Medicine

16,808

$738K

505
439 are 65+

16%
prescriptions for brand name drugs

Avg: 21%

$44
Average prescription price

Avg: $64

SANJAY THAKKAR M.D.

Internal Medicine

16,668

$1.02M

462
369 are 65+

22%
prescriptions for brand name drugs

Avg: 21%

$61
Average prescription price

Avg: $64

Sources

Centers for Medicare and Medicaid Services; National Technical Information Service; First Databank