Dr. James Patrick Tomas, MD
- Medicare services, 2024
- 1,375
- Medicare patients, 2024
- 335
- Part D claims, 2024
- 2,555
- Hospital affiliations
- 5
- Industry payments
- $3,919
- Practice address
- 6090 W Ramsey Street, Banning, CA 92220
- Practice phone
- Call (951) 845-4494
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
DaVita Banning Dialysis
Dialysis Center - Independent · Banning, California
Find Dr. Tomas' 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. James Patrick Tomas is a nephrologist in Banning, California
Dr. Tomas practices at DaVita Banning Dialysis in Banning, California.
Dr. Tomas' NPI, 1902040819, was assigned on April 22, 2009. Dr. Tomas holds California license A120476.
- NPI
- 1902040819NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2567695216
- NPI enumeration date
- April 22, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 845-4494
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James Patrick Tomas practices at DaVita Banning Dialysis in Banning, California
Dr. Tomas' primary practice is DaVita Banning Dialysis, at 6090 W Ramsey Street, Banning, CA 92220 in Riverside County. The practice phone is (951) 845-4494.
- DaVita Banning Dialysis6090 W Ramsey Street, Banning, CA 92220 · Riverside CountyPhone(951) 845-4494
Source: Dmand AI Affiliation Data
Dr. James Patrick Tomas is affiliated with 9 sites of care and 2 medical groups
Dr. Tomas' primary practice is DaVita Banning Dialysis in Banning, California. Dr. Tomas is also affiliated with San Gorgonio Memorial Hospital. The medical group on file is San Manuel Indian Health Clinic. Dmand AI also links Dr. Tomas to 4 more hospitals, 1 community health center, 1 dialysis center, 1 group practice or clinic and 1 medical group, 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. James Patrick Tomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tomas practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DaVita Banning Dialysis | Available with a free account |
| +8 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Patrick Tomas is one of 1,401 nephrologists in California
Nephrology is Dr. Tomas' primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Tomas is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Tomas
Counts of nephrologists 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. James Patrick Tomas billed Medicare for 1,375 services in 2024
CMS data shows 1,375 Medicare services from Dr. Tomas across 14 procedure codes in 2024, for 335 Medicare patients. Medicare paid $132,939 for them.
Dr. Tomas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1482024: 1,0449%
- Tests and treatments
- 2023: 2592024: 2494%
- Lab and pathology
- 2023: 922024: 8211%
Where Dr. Tomas' Medicare services took place, 2024
- In an office40129%
- In a facility97471%
Dr. Tomas compared with the California median for nephrologists, 2024
- Dr. Tomas
- California median
- Medicare services
- 1,375vs 1,08427% above
- Medicare patients
- 335vs 3079% above
- Part D claims
- 2,396vs 9552.5 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Tomas' 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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Patrick Tomas treated 335 Medicare patients in 2024, average age 70
CMS counts 335 Medicare patients who saw Dr. Tomas in 2024. The largest group is 65 to 74, with 132 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 73% are also on Medicaid. Their average risk score is 5.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Tomas' median patient age at 68, with 49% women.
Dr. Tomas' Medicare patients by age, 2024
Dr. Tomas' Medicare patients by sex, 2024
- Women15947%
- Men17653%
Chronic conditions among Dr. Tomas' Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes73%
- Heart failure63%
- Arthritis46%
- Ischemic heart disease46%
- Mood disorders38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James Patrick Tomas wrote 2,555 Medicare Part D claims in 2024
In 2024, Dr. Tomas wrote 2,555 Medicare Part D claims for 269 patients. 60% of them were for generic drugs. CMS names the drug for 2,396 of them, across 36 drugs with 11 or more claims each, at $911,191 in total drug cost. In 2023, CMS named 2,599 claims across 35 drugs.
Dr. Tomas' Part D claims by kind of drug, 2024
- Generic1,527 claims60%
- Brand-name and other1,028 claims40%
Dr. Tomas' 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. Tomas' Part D claims, 2024
- Antibiotics0%11 of 2,555 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: 2,5992024: 2,3968%
Drugs named by CMS: 36 in 2024, 35 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. James Patrick Tomas takes part in Medicare
Dr. Tomas 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. James Patrick Tomas received $3,919 in industry payments from 2016 to 2025
CMS Open Payments shows 225 general payments to Dr. Tomas from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. OPKO Pharmaceuticals, LLC paid the most, $898.
General payments to Dr. Tomas by program year, 2016 to 2025
General payments to Dr. Tomas by kind, 2016 to 2025
- Food and beverage$3,68494%
- Education$2356%
Companies that paid Dr. Tomas the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. James Patrick Tomas'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) |
| 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. James Patrick Tomas
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. James Patrick Tomas' NPI number?
Dr. James Patrick Tomas' NPI number is 1902040819. It was assigned on April 22, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. James Patrick Tomas?
Dr. James Patrick Tomas is a nephrologist in Banning, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. James Patrick Tomas practice?
Dr. Tomas practices at 6090 W Ramsey Street, Banning, CA 92220. Dr. Tomas' primary practice is DaVita Banning Dialysis in Banning, California. Dmand AI also links Dr. Tomas to 4 hospitals, 1 community health center, 1 dialysis center, 1 group practice or clinic and 1 medical group.
What is Dr. James Patrick Tomas' office phone number?
The practice phone on file for Dr. Tomas is (951) 845-4494.
What is Dr. James Patrick Tomas' medical license number?
Dr. Tomas holds California license A120476.
Which hospitals is Dr. James Patrick Tomas affiliated with?
Dr. Tomas is affiliated with San Gorgonio Memorial Hospital. Dmand AI links Dr. Tomas to 4 more hospitals.
What medical group is Dr. James Patrick Tomas part of?
Dr. Tomas is linked to San Manuel Indian Health Clinic. Dmand AI links Dr. Tomas to 1 more medical group.
Does Dr. James Patrick Tomas accept Medicare?
Yes. CMS data shows Dr. Tomas billed Medicare for 1,375 services in 2024, and Dr. Tomas accepts Medicare assignment.
How many Medicare patients does Dr. James Patrick Tomas see?
CMS counts 335 Medicare patients who saw Dr. Tomas in 2024, with an average age of 70.
What services does Dr. James Patrick Tomas bill to Medicare?
In 2024, Dr. Tomas' most billed Medicare services were hospital inpatient care (99232), dialysis (90960) and hospital inpatient care (99233).
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What drugs does Dr. James Patrick Tomas prescribe most?
In 2024 Medicare Part D data, Dr. Tomas' most prescribed drugs by claims were Allopurinol, Rayaldee and Lokelma.
Has Dr. James Patrick Tomas received payments from drug or device companies?
CMS Open Payments shows $3,919 in general payments to Dr. Tomas from 24 companies from 2016 to 2025. The largest total came from OPKO Pharmaceuticals, LLC.
How long has Dr. James Patrick Tomas been practicing?
Dr. Tomas graduated from medical school in 2009, 17 years ago.
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