Doctor profile · Federal record

Dr. Arthur Inoshita, MD

Internal Medicine Physician (CMS: Internal Medicine) · Ventura, CA

  • NPI 1932105277
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 51 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3003 Loma Vista RD, Ste B
Ventura, CA 930032940
(805) 652-1520
fax (805) 652-1588

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
September 7, 2023
Year of graduation
1975 — 51 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #39112230
Medicaid
CA #00G336221

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1932105277. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,864
Distinct HCPCS
10
Medicare allowed
$187,668
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 680 243 $94
99214 Established patient office or other outpatient visit, 30-39 minutes 354 194 $133
99443 Telephone medical discussion with physician, 21-30 minutes 306 181 $132
G0444 Annual depression screening, 5 to 15 minutes 160 160 $20
99497 Advance care planning, first 30 minutes 151 145 $84
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 140 58 $109
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 24 14 $77
G0181 Physician or allowed practitioner supervision of a patient receiving medicare-covered services provided by a participating home health agency (patient not present) requiring complex and multidisciplinary care modalities involving regular physician or allow 19 15 $107
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 18 17 $15
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and 12 12 $55

In context: peer comparison

Among 13 peers in this city , average services per provider: 120. This provider delivers 16× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$688
Transactions
19
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Amgen Inc. 6 $313.46
Boehringer Ingelheim Pharmaceuticals, Inc. 4 $115.01
Otsuka America Pharmaceutical, Inc. 2 $111.71
Merck Sharp & Dohme LLC 3 $70.20
AIMMUNE THERAPEUTICS, INC. 1 $23.42
ACADIA Pharmaceuticals Inc 1 $20.02
AstraZeneca Pharmaceuticals LP 1 $19.01
PFIZER INC. 1 $14.77

By nature of payment

Food and Beverage
$688

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
2,570
Patients
614
Total drug cost
$135,249
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 423 99 $5,509
Levothyroxine Sodium Generic 260 60 $4,239
Losartan Potassium Generic 226 67 $3,632
Amlodipine Besylate Generic 224 61 $1,592
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 151 32 $4,844
Gabapentin Generic 145 40 $3,004
Lisinopril Generic 145 37 $1,477
Furosemide Generic 135 37 $800
Tramadol Hcl Generic 135 26 $840
Eliquis (Apixaban) Brand 130 23 $98,647

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Arthur Inoshita's medical specialty?
Dr. Arthur Inoshita practices Internal Medicine Physician in Ventura, CA.
Where does Dr. Arthur Inoshita practice?
Dr. Arthur Inoshita practices at 3003 Loma Vista RD, Ventura, CA 930032940. Office phone: 8056521520.
What is Dr. Arthur Inoshita's NPI?
Dr. Arthur Inoshita's National Provider Identifier (NPI) is 1932105277, issued by NPPES.
Does Dr. Arthur Inoshita accept Medicare assignment?
Yes. Dr. Arthur Inoshita accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Arthur Inoshita commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99443). Source: CMS Medicare Physician & Other Practitioners file.