Doctor profile · Federal record

Dr. Robert Bessler, P.A.

Physician Assistant · Riverside, CA

  • NPI 1609803907
  • 20 yrs on file
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3865 Jackson St
Riverside, CA 925033919
(951) 352-5666
fax (951) 352-5445
Mailing address
Po Box 661748
Arcadia, CA 910661748

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
June 12, 2008
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #PA12853
Medicaid
CA #PA12853

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609803907. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
225
Distinct HCPCS
3
Medicare allowed
$22,751
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 104 101 $151
99284 Emergency department visit with moderate level of medical decision making 64 61 $104
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 57 55 $7

In context: peer comparison

Among 16 peers in Riverside Physician Assistant, average services per provider: 90. This provider delivers 2.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
177
Patients
164
Total drug cost
$1,072
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 53 52 $135
Cephalexin Generic 34 34 $318
Naproxen Generic 24 23 $83
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 16 16 $226
Ondansetron Odt (Ondansetron) Brand 16 16 $66
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 12 12 $35
Doxycycline Hyclate Generic 11 0 $176
Prednisone Generic 11 11 $32

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Bessler's medical specialty?
Dr. Robert Bessler practices Physician Assistant in Riverside, CA.
Where does Dr. Robert Bessler practice?
Dr. Robert Bessler practices at 3865 Jackson St, Riverside, CA 925033919. Office phone: 9513525666.
What is Dr. Robert Bessler's NPI?
Dr. Robert Bessler's National Provider Identifier (NPI) is 1609803907, issued by NPPES.
What procedures does Dr. Robert Bessler commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.