Arthur Inoshita, MD
NPI 1932105277 · Internal Medicine Physician · Ventura, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Arthur Inoshita, MD is a Internal Medicine Physician provider in Ventura, CA (NPI 1932105277).
Provider details
- NPI number
- 1932105277
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 39112230 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,619 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 511 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 500 | $136 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 | 306 | $136 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 111 | $111 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 73 | $21 |
| Advance Care Planning, First 30 Minutes99497 | 71 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 121 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 357 | 95 |
| Levothyroxine Sodium | 258 | 61 |
| Losartan Potassium | 230 | 59 |
| Amlodipine Besylate | 193 | 53 |
| Apixabanbrand: Eliquis | 150 | 27 |
| Gabapentin | 142 | 38 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$688 across 19 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-22
- Last updated
- 2023-09-07
Frequently asked questions
- What is Arthur Inoshita's NPI number?
- Arthur Inoshita's National Provider Identifier (NPI) is 1932105277, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Arthur Inoshita's specialty?
- Arthur Inoshita is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Arthur Inoshita located?
- Arthur Inoshita's practice location on file with NPPES is 3003 Loma Vista Rd, Ventura, CA 93003-2940.
- What is Arthur Inoshita's phone number?
- The practice phone number listed in the NPPES registry for Arthur Inoshita is (805) 652-1520.
- Does Arthur Inoshita accept Medicare?
- Arthur Inoshita is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Arthur Inoshita's NPI active?
- Yes — Arthur Inoshita's NPI (1932105277) is active in the NPPES registry as of the last update on 2023-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.