Dr. Robert Arthur Bonner, MD
- Medicare services, 2024
- 218
- Medicare patients, 2024
- 84
- Part D claims, 2024
- 5,756
- Hospital affiliations
- 1
- Industry payments
- $8,682
- Practice address
- 4445 Magnolia Avenue, Riverside, CA 92501
- Practice phone
- Call (951) 788-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Bonner'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. Robert Arthur Bonner is an endocrinologist in Riverside, California
Dr. Bonner practices at Riverside Community Hospital in Riverside, California, part of HCA Healthcare.
Dr. Bonner's NPI, 1497862684, was assigned on August 24, 2006. Dr. Bonner graduated from University Of Minnesota Medical School in 1973. Dr. Bonner holds California license G60851.
- NPI
- 1497862684NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436208907
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 788-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 79
- Medical school graduation
- 1973
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Arthur Bonner practices at Riverside Community Hospital in Riverside, California
Dr. Bonner's primary practice is Riverside Community Hospital, at 4445 Magnolia Avenue, Riverside, CA 92501 in Riverside County. The practice phone is (951) 788-3000.
- Riverside Community Hospital4445 Magnolia Avenue, Riverside, CA 92501 · Riverside CountyPhone(951) 788-3000
Source: Dmand AI Affiliation Data
Dr. Robert Arthur Bonner is affiliated with 2 sites of care
Dr. Bonner's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. Dmand AI also links Dr. Bonner to 1 physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Arthur Bonner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bonner practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Riverside Community Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Arthur Bonner is one of 1,062 endocrinologists in California
Endocrinology, diabetes and metabolism is Dr. Bonner's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. Bonner is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine. Dmand AI has Dr. Bonner's licenses on file in 3 states: California, Minnesota and Louisiana.
Specialties and state licenses
- Endocrinology, diabetes and metabolism, CaliforniaPrimary
- Minnesota license
- Louisiana license
Clinical focus
Dmand AI lists acute skin infection, chronic diabetes, chronic hypertension, diabetic emergency, enlarged thyroid, high cholesterol, hypercalcemia and insomnia among the conditions Dr. Bonner treats.
Endocrinologists near Dr. Bonner
Counts of endocrinologists 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. Robert Arthur Bonner billed Medicare for 218 services in 2024
CMS data shows 218 Medicare services from Dr. Bonner across 1 procedure code in 2024, all of them office visits, for 84 Medicare patients. Medicare paid $19,040 for them. Every service was in an office.
Dr. Bonner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2162024: 2181%
Dr. Bonner compared with the California median for endocrinologists, 2024
- Dr. Bonner
- California median
- Medicare services
- 218vs 67568% below
- Medicare patients
- 84vs 24065% below
- Part D claims
- 5,178vs 1,1044.7 times
Medians across 994 endocrinologists in California with Dmand AI profiles that report each measure.
Dr. Bonner'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. Bonner?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bonner and other endocrinologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Arthur Bonner treated 84 Medicare patients in 2024, average age 75
CMS counts 84 Medicare patients who saw Dr. Bonner in 2024. The largest group is 65 to 74, with 42 patients. 75% of them have diabetes, and 75% have high blood pressure. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Bonner's median patient age at 65, with 58% women.
Dr. Bonner's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Bonner's Medicare patients by sex, 2024
- Women4351%
- Men4149%
Chronic conditions among Dr. Bonner's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Chronic kidney disease49%
- Ischemic heart disease40%
- Heart failure29%
- Mood disorders18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Bonner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Arthur Bonner wrote 5,756 Medicare Part D claims in 2024
In 2024, Dr. Bonner wrote 5,756 Medicare Part D claims for 493 patients. 47% of them were for generic drugs. CMS names the drug for 5,178 of them, across 67 drugs with 11 or more claims each, at $2,685,487 in total drug cost. In 2023, CMS named 4,420 claims across 64 drugs.
Dr. Bonner's Part D claims by kind of drug, 2024
- Generic2,714 claims47%
- Brand-name2,808 claims49%
- Other234 claims4%
Dr. Bonner'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. Bonner's Part D claims, 2024
- Antibiotics0%19 of 5,756 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: 4,4202024: 5,17817%
Drugs named by CMS: 67 in 2024, 64 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
How Dr. Robert Arthur Bonner takes part in Medicare
Dr. Bonner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert Arthur Bonner received $8,682 in industry payments from 2016 to 2025
CMS Open Payments shows 319 general payments to Dr. Bonner from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Abbott Laboratories paid the most, $1,656.
General payments to Dr. Bonner by program year, 2016 to 2025
General payments to Dr. Bonner by kind, 2016 to 2025
- Food and beverage$8,20294%
- Education$4215%
- Gifts$591%
Companies that paid Dr. Bonner 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. Robert Arthur Bonner graduated from University Of Minnesota Medical School
Dr. Bonner graduated from University Of Minnesota Medical School in 1973.
- Medical school
- Board certified in endocrinology, diabetes and metabolism
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Robert Arthur Bonner accepts plans from 16 insurance carriers
Dr. Bonner is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Molina
- Regence Health Plans
- +8 more carriersWith a free account
Plan types Dr. Bonner accepts, by number of carriers
- Medicare9
- PPO9
- HMO8
- POS5
- EPO4
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Arthur Bonner'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) |
| 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. Robert Arthur Bonner
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. Robert Arthur Bonner's NPI number?
Dr. Robert Arthur Bonner's NPI number is 1497862684. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Arthur Bonner?
Dr. Robert Arthur Bonner is an endocrinologist in Riverside, California. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).
Where does Dr. Robert Arthur Bonner practice?
Dr. Bonner practices at 4445 Magnolia Avenue, Riverside, CA 92501. Dr. Bonner's primary practice is Riverside Community Hospital in Riverside, California, part of HCA Healthcare. Dmand AI also links Dr. Bonner to 1 physician office.
What is Dr. Robert Arthur Bonner's office phone number?
The practice phone on file for Dr. Bonner is (951) 788-3000.
What is Dr. Robert Arthur Bonner's medical license number?
Dr. Bonner holds California license G60851, one of the licenses on file in 3 states.
Which states has Dr. Robert Arthur Bonner been licensed in?
Dmand AI has state licenses on file for Dr. Bonner in California (1987 to 2027), Minnesota (1974 to 1989) and Louisiana (1982 to 1987).
Which hospitals is Dr. Robert Arthur Bonner affiliated with?
Dr. Bonner practices at Riverside Community Hospital in Riverside, California.
Does Dr. Robert Arthur Bonner accept Medicare?
Yes. CMS data shows Dr. Bonner billed Medicare for 218 services in 2024, and Dr. Bonner accepts Medicare assignment.
How many Medicare patients does Dr. Robert Arthur Bonner see?
CMS counts 84 Medicare patients who saw Dr. Bonner in 2024, with an average age of 75.
Is Dr. Robert Arthur Bonner board certified?
Yes. Dr. Bonner is board certified in endocrinology, diabetes and metabolism by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Robert Arthur Bonner bill to Medicare?
In 2024, Dr. Bonner's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Robert Arthur Bonner go to medical school?
Dr. Bonner graduated from University Of Minnesota Medical School in 1973.
What drugs does Dr. Robert Arthur Bonner prescribe most?
In 2024 Medicare Part D data, Dr. Bonner's most prescribed drugs by claims were Ozempic, Farxiga and Levothyroxine Sodium.
Has Dr. Robert Arthur Bonner received payments from drug or device companies?
CMS Open Payments shows $8,682 in general payments to Dr. Bonner from 26 companies from 2016 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Robert Arthur Bonner been practicing?
Dr. Bonner graduated from medical school in 1973, 53 years ago.
What insurance does Dr. Robert Arthur Bonner accept?
Dr. Bonner is in network with 16 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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