Doctor profile · Federal record

Dr. Darin Chambers, M.D.

Family Medicine Physician (CMS: Family Practice) · Oxnard, CA

  • NPI 1316108053
  • Accepts Medicare
  • MIPS 82.2 / 100 · 2023
  • 19 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2400 S C St
Oxnard, CA 93033
(805) 240-7000
Additional location
300 Hillmont Ave Ste 302
Ventura, CA 930031651
(805) 652-6000
Additional location
325 W. Channel
Oxnard, CA 93033
(805) 204-9500

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
July 10, 2023
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
California #A107109

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1316108053. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
52
Distinct HCPCS
2
Medicare allowed
$3,591
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 30 15 $99
71046 X-ray of chest, 2 views 22 13 $29

In context: peer comparison

Among 15 peers in Oxnard Family Medicine Physician, average services per provider: 83. This provider delivers 0.6× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$96
Transactions
5
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Smith+Nephew, INC. 1 $28.50
Leo Pharma INC. 1 $17.86
Solventum Corporation 1 $17.62
Novartis Pharmaceuticals Corporation 1 $16.68
Kowa Pharmaceuticals America, INC. 1 $15.64

By nature of payment

Food and Beverage
$96

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,504
Patients
429
Total drug cost
$27,828
Drug Type Claims Patients Total cost
Metformin Hcl Generic 193 57 $3,120
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 141 21 $2,642
Atorvastatin Calcium Generic 128 39 $3,111
Omeprazole Generic 119 34 $2,421
Losartan Potassium Generic 118 32 $2,038
Lisinopril Generic 95 35 $1,622
Gabapentin Generic 94 31 $2,084
Hydrochlorothiazide Generic 86 22 $342
Trazodone Hcl Generic 84 26 $837
Amlodipine Besylate Generic 80 23 $1,755

Frequently asked questions

Auto-generated from federal data
What is Dr. Darin Chambers's medical specialty?
Dr. Darin Chambers practices Family Medicine Physician in Oxnard, CA.
Where does Dr. Darin Chambers practice?
Dr. Darin Chambers practices at 2400 S C St, Oxnard, CA 93033. Office phone: 8052407000.
What is Dr. Darin Chambers's NPI?
Dr. Darin Chambers's National Provider Identifier (NPI) is 1316108053, issued by NPPES.
Does Dr. Darin Chambers accept Medicare assignment?
Yes. Dr. Darin Chambers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Darin Chambers commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.