Dr. Arthur M. Inoshita, MD
- Medicare services, 2024
- 1,619
- Medicare patients, 2024
- 289
- Part D claims, 2024
- 6,491
- MIPS score, 2024
- 75
- Hospital affiliations
- 2
- Practice address
- 601 North Montgomery Street, Ojai, CA 93023
- Practice phone
- Call (805) 646-8124
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ojai Health & Rehabilitation
Skilled Nursing Facility · Ojai, California
Find Dr. Inoshita's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Arthur M. Inoshita is an internist in Ojai, California
Dr. Inoshita practices at Ojai Health & Rehabilitation in Ojai, California.
Dr. Inoshita's NPI, 1932105277, was assigned on June 22, 2005. Dr. Inoshita graduated from College of Medicine - Tucson in 1975. Dr. Inoshita holds California license 39112230.
- NPI
- 1932105277NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103942412
- NPI enumeration date
- June 22, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (805) 646-8124
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Arthur M. Inoshita practices at Ojai Health & Rehabilitation in Ojai, California
Dr. Inoshita's primary practice is Ojai Health & Rehabilitation, at 601 North Montgomery Street, Ojai, CA 93023 in Ventura County. The practice phone is (805) 646-8124.
- Ojai Health & Rehabilitation601 North Montgomery Street, Ojai, CA 93023 · Ventura CountyPhone(805) 646-8124
Source: Dmand AI Affiliation Data
Dr. Arthur M. Inoshita is affiliated with 9 sites of care
Dr. Inoshita's primary practice is Ojai Health & Rehabilitation in Ojai, California. Dr. Inoshita is also affiliated with Community Memorial Hospital - Ojai. Dmand AI also links Dr. Inoshita to 1 more hospital, 5 home health agencies and 1 hospice, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Arthur M. Inoshita's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Inoshita practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ojai Health & Rehabilitation | Available with a free account |
| +8 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Arthur M. Inoshita is one of 16,751 internists in California
Internal medicine is Dr. Inoshita's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Inoshita is board certified in geriatric medicine by the American Board of Internal Medicine. Dr. Inoshita is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute skin infection, aneurysm, arterial blot clot /embolism, asthma, atrial fibrillation and flutter and bipolar disorder among the conditions Dr. Inoshita treats.
Internists near Dr. Inoshita
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Arthur M. Inoshita billed Medicare for 1,619 services in 2024
CMS data shows 1,619 Medicare services from Dr. Inoshita across 7 procedure codes in 2024, for 289 Medicare patients. Medicare paid $140,236 for them.
Dr. Inoshita's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,6552024: 1,4999%
- Other services
- 2023: 1912024: 12037%
- Tests and treatments
- 2023: 182024: 0100%
Where Dr. Inoshita's Medicare services took place, 2024
- In an office1,50893%
- In a facility1117%
Dr. Inoshita compared with the California median for internists, 2024
- Dr. Inoshita
- California median
- Medicare services
- 1,619vs 3614.5 times
- Medicare patients
- 289vs 15191% above
- Part D claims
- 5,707vs 42113.6 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Inoshita's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Inoshita?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Inoshita and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Arthur M. Inoshita treated 289 Medicare patients in 2024, average age 80
CMS counts 289 Medicare patients who saw Dr. Inoshita in 2024. The largest group is 75 to 84, with 115 patients. 75% of them have alcohol and drug use disorders, and 75% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Inoshita's median patient age at 77, with 49% women.
Dr. Inoshita's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Inoshita's Medicare patients by sex, 2024
- Women16356%
- Men12644%
Chronic conditions among Dr. Inoshita's Medicare patients, 2024
- Alcohol and drug use disorders75%
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Mood disorders37%
- Depression35%
- Osteoporosis30%
- Anxiety28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Inoshita's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 77
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Arthur M. Inoshita wrote 6,491 Medicare Part D claims in 2024
In 2024, Dr. Inoshita wrote 6,491 Medicare Part D claims for 374 patients. 88% of them were for generic drugs. CMS names the drug for 5,707 of them, across 121 drugs with 11 or more claims each, at $455,196 in total drug cost. In 2023, CMS named 6,682 claims across 144 drugs.
Dr. Inoshita's Part D claims by kind of drug, 2024
- Generic5,707 claims88%
- Brand-name731 claims11%
- Other53 claims1%
Dr. Inoshita's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Inoshita's Part D claims, 2024
- Opioids3%223 of 6,491 claims
- Antibiotics3%201 of 6,491 claims
- Antipsychotics, patients 65 and over1%93 of 6,491 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,6822024: 5,70715%
Drugs named by CMS: 121 in 2024, 144 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Arthur M. Inoshita scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Inoshita for performance year 2024, reported individually. Dr. Inoshita accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Inoshita as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Arthur M. Inoshita received $21,488 in industry payments from 2016 to 2025
CMS Open Payments shows 527 general payments to Dr. Inoshita from 46 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $4,084.
General payments to Dr. Inoshita by program year, 2016 to 2025
General payments to Dr. Inoshita by kind, 2016 to 2025
- Food and beverage$21,394100%
- Education$940%
Companies that paid Dr. Inoshita the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Arthur M. Inoshita graduated from College of Medicine - Tucson
Dr. Inoshita graduated from College of Medicine - Tucson in 1975.
- Medical school
- Board certified in geriatric medicine
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Arthur M. Inoshita accepts plans from 14 insurance carriers
Dr. Inoshita is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- Alliant Health Plans
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- +6 more carriersWith a free account
Plan types Dr. Inoshita accepts, by number of carriers
- PPO9
- HMO6
- Medicare5
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Arthur M. Inoshita's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Arthur M. Inoshita
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Arthur M. Inoshita's NPI number?
Dr. Arthur M. Inoshita's NPI number is 1932105277. It was assigned on June 22, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Arthur M. Inoshita?
Dr. Arthur M. Inoshita is an internist in Ojai, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Arthur M. Inoshita practice?
Dr. Inoshita practices at 601 North Montgomery Street, Ojai, CA 93023. Dr. Inoshita's primary practice is Ojai Health & Rehabilitation in Ojai, California. Dmand AI also links Dr. Inoshita to 1 hospital, 5 home health agencies and 1 hospice.
What is Dr. Arthur M. Inoshita's office phone number?
The practice phone on file for Dr. Inoshita is (805) 646-8124.
What is Dr. Arthur M. Inoshita's medical license number?
Dr. Inoshita holds California license 39112230.
Which hospitals is Dr. Arthur M. Inoshita affiliated with?
Dr. Inoshita is affiliated with Community Memorial Hospital - Ojai. Dmand AI links Dr. Inoshita to 1 more hospital.
Does Dr. Arthur M. Inoshita accept Medicare?
Yes. CMS data shows Dr. Inoshita billed Medicare for 1,619 services in 2024, and Dr. Inoshita accepts Medicare assignment.
Does Dr. Arthur M. Inoshita offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Inoshita as offering telehealth services.
What is Dr. Arthur M. Inoshita's MIPS score?
Dr. Inoshita's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Arthur M. Inoshita see?
CMS counts 289 Medicare patients who saw Dr. Inoshita in 2024, with an average age of 80.
Show 7 more questionsShow fewer questions
Is Dr. Arthur M. Inoshita board certified?
Yes. Dr. Inoshita is board certified in geriatric medicine by the American Board of Internal Medicine.
What services does Dr. Arthur M. Inoshita bill to Medicare?
In 2024, Dr. Inoshita's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and care management and other visits (99443).
Where did Dr. Arthur M. Inoshita go to medical school?
Dr. Inoshita graduated from College of Medicine - Tucson in 1975.
What drugs does Dr. Arthur M. Inoshita prescribe most?
In 2024 Medicare Part D data, Dr. Inoshita's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Losartan Potassium.
Has Dr. Arthur M. Inoshita received payments from drug or device companies?
CMS Open Payments shows $21,488 in general payments to Dr. Inoshita from 46 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Arthur M. Inoshita been practicing?
Dr. Inoshita graduated from medical school in 1975, 51 years ago.
What insurance does Dr. Arthur M. Inoshita accept?
Dr. Inoshita is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card