Doctor profile · Federal record

Dr. Robert Dekkers, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Santa Paula, CA

  • NPI 1821083171
  • Accepts Medicare
  • MIPS 90.2 / 100 · 2023
  • 50 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
243 March St
Santa Paula, CA 930602511
(805) 525-7131
Mailing address
3400 Data Dr
Rancho Cordova, CA 956707956

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
October 3, 2023
Year of graduation
1976 — 50 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A40656

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1821083171. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,455
Distinct HCPCS
10
Medicare allowed
$86,356
HCPCS Description Services Patients Avg allowed
J1100 Injection, dexamethasone sodium phosphate, 1 mg 680 29 $0
99214 Established patient office or other outpatient visit, 30-39 minutes 373 105 $140
99306 Initial nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes 101 82 $194
96372 Injection of drug or substance under skin or into muscle 67 29 $16
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 65 65 $142
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 55 54 $16
83036 Hemoglobin a1c level 49 23 $10
90686 Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 27 26 $22
G0008 Administration of influenza virus vaccine 27 26 $32
99316 Nursing facility discharge management, more than 30 minutes 11 11 $140

In context: peer comparison

Among 2 peers in this city , average services per provider: 111. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$100
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 2 $48.27
AstraZeneca Pharmaceuticals LP 2 $32.62
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $19.33

By nature of payment

Food and Beverage
$100

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,447
Patients
1,011
Total drug cost
$110,151
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 433 112 $6,378
Levothyroxine Sodium Generic 338 80 $6,054
Furosemide Generic 275 86 $1,738
Prednisone Generic 271 97 $1,285
Omeprazole Generic 266 97 $4,860
Metformin Hcl Generic 251 75 $3,324
Simvastatin Generic 219 62 $2,941
Gabapentin Generic 218 57 $2,779
Losartan Potassium Generic 204 62 $3,147
Eliquis (Apixaban) Brand 191 45 $67,622

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Dekkers's medical specialty?
Dr. Robert Dekkers practices Internal Medicine Physician in Santa Paula, CA.
Where does Dr. Robert Dekkers practice?
Dr. Robert Dekkers practices at 243 March St, Santa Paula, CA 930602511. Office phone: 8055257131.
What is Dr. Robert Dekkers's NPI?
Dr. Robert Dekkers's National Provider Identifier (NPI) is 1821083171, issued by NPPES.
Does Dr. Robert Dekkers accept Medicare assignment?
Yes. Dr. Robert Dekkers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Dekkers commonly perform?
Top Medicare-reported procedures in 2023: Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100); Established patient office or other outpatient visit (HCPCS 99214); Initial nursing facility care with high level of medical decision making (HCPCS 99306). Source: CMS Medicare Physician & Other Practitioners file.