Prescriber Checkup | Top Family Medicine Prescribers in California

Prescriber Checkup

The Doctors and Drugs in Medicare Part D

Prescriber Checkup » California » Family Medicine

Top Family Medicine Prescribers in California

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
TOCHUKWU ONYEKWULUJE MD

Family Medicine

2,064

$51.9K

830
668 are 65+

10%
prescriptions for brand name drugs

Avg: 20%

$25
Average prescription price

Avg: $60

CHRISTINE SHAW MD

Family Medicine

3,273

$160K

829
764 are 65+

22%
prescriptions for brand name drugs

Avg: 20%

$49
Average prescription price

Avg: $60

RONALD CORREA M.D.

Family Medicine

18,595

$985K

826
718 are 65+

14%
prescriptions for brand name drugs

Avg: 20%

$53
Average prescription price

Avg: $60

JOHN FRIES MD

Family Medicine

6,734

$308K

820
729 are 65+

24%
prescriptions for brand name drugs

Avg: 20%

$46
Average prescription price

Avg: $60

DANIEL SCHAFFNER MD

Family Medicine

11,574

$881K

820
701 are 65+

19%
prescriptions for brand name drugs

Avg: 20%

$76
Average prescription price

Avg: $60

RODNEY DEGUZMAN MD

Family Medicine

12,683

$625K

819
637 are 65+

17%
prescriptions for brand name drugs

Avg: 20%

$49
Average prescription price

Avg: $60

SUNIL ROY MD

Family Medicine

6,724

$241K

814
739 are 65+

20%
prescriptions for brand name drugs

Avg: 20%

$36
Average prescription price

Avg: $60

MARK JOHANSEN DO

Family Medicine

6,038

$244K

814
708 are 65+

17%
prescriptions for brand name drugs

Avg: 20%

$40
Average prescription price

Avg: $60

JAMES STONE MD

Family Medicine

6,492

$309K

812
715 are 65+

22%
prescriptions for brand name drugs

Avg: 20%

$48
Average prescription price

Avg: $60

DOUGLAS MCMULLIN MD

Family Medicine

6,672

$463K

810
546 are 65+

18%
prescriptions for brand name drugs

Avg: 20%

$69
Average prescription price

Avg: $60

PEI CASAS M.D.

Family Medicine

6,439

$283K

809
737 are 65+

20%
prescriptions for brand name drugs

Avg: 20%

$44
Average prescription price

Avg: $60

MEHRAN OKHOVAT MD

Family Medicine

16,766

$1.07M

809
666 are 65+

21%
prescriptions for brand name drugs

Avg: 20%

$64
Average prescription price

Avg: $60

IRMA CASTRO MD

Family Medicine

17,299

$1.21M

806
562 are 65+

22%
prescriptions for brand name drugs

Avg: 20%

$70
Average prescription price

Avg: $60

ANTONIO VILLALVAZO

Family Medicine

33,232

$1.59M

806
512 are 65+

21%
prescriptions for brand name drugs

Avg: 20%

$48
Average prescription price

Avg: $60

FRANK CHEN MD

Family Medicine

8,347

$427K

805
731 are 65+

23%
prescriptions for brand name drugs

Avg: 20%

$51
Average prescription price

Avg: $60

SABAH KADHIUM MD

Family Medicine

29,577

$1.68M

805
601 are 65+

23%
prescriptions for brand name drugs

Avg: 20%

$57
Average prescription price

Avg: $60

JEFFREY BROWNWOOD DO

Family Medicine

7,205

$322K

802
726 are 65+

16%
prescriptions for brand name drugs

Avg: 20%

$45
Average prescription price

Avg: $60

MAI HUYNH MD

Family Medicine

6,677

$298K

801
721 are 65+

19%
prescriptions for brand name drugs

Avg: 20%

$45
Average prescription price

Avg: $60

RUDOLF HAIDER MD

Family Medicine

10,298

$411K

800
795 are 65+

17%
prescriptions for brand name drugs

Avg: 20%

$40
Average prescription price

Avg: $60

MURAT MARDIROSSIAN M.D.

Family Medicine

8,467

$447K

799
675 are 65+

16%
prescriptions for brand name drugs

Avg: 20%

$53
Average prescription price

Avg: $60

EDWARD VELARDE MD

Family Medicine

6,793

$273K

798
719 are 65+

15%
prescriptions for brand name drugs

Avg: 20%

$40
Average prescription price

Avg: $60

JOSE CASTELLANOS M.D.

Family Medicine

13,436

$785K

798
723 are 65+

18%
prescriptions for brand name drugs

Avg: 20%

$58
Average prescription price

Avg: $60

IGNACIO GUZMAN MD

Family Medicine

9,211

$1.14M

798
574 are 65+

27%
prescriptions for brand name drugs

Avg: 20%

$123
Average prescription price

Avg: $60

ADEL RIZKALLAH DO

Family Medicine

5,127

$189K

797
698 are 65+

14%
prescriptions for brand name drugs

Avg: 20%

$37
Average prescription price

Avg: $60

ALFRED DE LA TORRE M.D.

Family Medicine

13,669

$735K

797
522 are 65+

17%
prescriptions for brand name drugs

Avg: 20%

$54
Average prescription price

Avg: $60

Sources

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