Dr. Robert D. Thomas, MD
- Medicare services, 2024
- 10,072
- Medicare patients, 2024
- 5,574
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Industry payments
- $37
- Practice address
- 1000 Greenley Road, Sonora, CA 95370
- Practice phone
- Call (209) 536-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Thomas' professional email, personal email and mobile number
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Dr. Robert D. Thomas is a diagnostic radiologist in Sonora, California
Dr. Thomas practices at Adventist Health Sonora in Sonora, California, part of Adventist Health.
Dr. Thomas' NPI, 1104821990, was assigned on June 17, 2005. Dr. Thomas graduated from University of Cape Town Faculty of Medicine in 1985. Dr. Thomas holds Tennessee license 32044.
- NPI
- 1104821990NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416122460
- NPI enumeration date
- June 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (209) 536-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert D. Thomas practices at Adventist Health Sonora in Sonora, California
Dr. Thomas' primary practice is Adventist Health Sonora, at 1000 Greenley Road, Sonora, CA 95370 in Tuolumne County. The practice phone is (209) 536-5000.
- Adventist Health Sonora1000 Greenley Road, Sonora, CA 95370 · Tuolumne CountyPhone(209) 536-5000
Source: Dmand AI Affiliation Data
Dr. Robert D. Thomas is affiliated with 4 sites of care and 3 medical groups
Dr. Thomas' primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health. Dr. Thomas is also affiliated with Doctors Medical Center Modesto. The medical group on file is Jason L Hwang MD Inc. Dmand AI also links Dr. Thomas to 1 more hospital, 2 medical groups and 1 group practice or clinic, 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. Robert D. Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Adventist Health Sonora | Available with a free account |
| +3 more sites and 2 medical groups | 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 Adventist Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert D. Thomas is one of 4,096 diagnostic radiologists in California
Diagnostic radiology is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Thomas is board certified in diagnostic radiology by the American Board of Radiology. Dmand AI has Dr. Thomas' licenses on file in 6 states: Tennessee, North Carolina, Oregon, California, Indiana and Georgia.
Specialties and state licenses
- Diagnostic radiology, TennesseePrimary
- North Carolina license
- Oregon license
- California license
- Indiana license
- Georgia license
Diagnostic radiologists near Dr. Thomas
Counts of diagnostic radiologists 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 D. Thomas billed Medicare for 10,072 services in 2024
CMS data shows 10,072 Medicare services from Dr. Thomas across 95 procedure codes in 2024, for 5,574 Medicare patients. Medicare paid $248,950 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Thomas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 8,1542024: 9,61418%
- Tests and treatments
- 2023: 3742024: 45822%
Dr. Thomas compared with the California median for diagnostic radiologists, 2024
- Dr. Thomas
- California median
- Medicare services
- 10,072vs 2,2814.4 times
- Medicare patients
- 5,574vs 1,3464.1 times
Medians across 3,734 diagnostic radiologists in California with Dmand AI profiles that report each measure.
Dr. Thomas' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thomas and other diagnostic radiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert D. Thomas treated 5,574 Medicare patients in 2024, average age 74
CMS counts 5,574 Medicare patients who saw Dr. Thomas in 2024. The largest group is 65 to 74, with 2,569 patients. 72% of them have high blood pressure, and 71% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 64, with 59% women.
Dr. Thomas' Medicare patients by age, 2024
Dr. Thomas' Medicare patients by sex, 2024
- Women3,40861%
- Men2,16639%
Chronic conditions among Dr. Thomas' Medicare patients, 2024
- High blood pressure72%
- High cholesterol71%
- Arthritis51%
- Diabetes25%
- Anxiety24%
- Mood disorders24%
- Depression21%
- Ischemic heart disease21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Thomas' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert D. Thomas scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Thomas for performance year 2024, reported as part of a group. Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Thomas' MIPS scores, performance year 2024
- 97of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
- 85of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert D. Thomas received $37 in industry payments from 2023 to 2024
CMS Open Payments shows 2 general payments to Dr. Thomas from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $24.
General payments to Dr. Thomas by program year, 2023 to 2024
Companies that paid Dr. Thomas the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert D. Thomas graduated from University of Cape Town Faculty of Medicine
Dr. Thomas graduated from University of Cape Town Faculty of Medicine in 1985.
- Medical school
- Board certified in diagnostic radiology
Source: Dmand AI Professional Profile Data
Dr. Robert D. Thomas accepts plans from 1 insurance carrier
Dr. Thomas is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert D. Thomas'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) |
| 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. Robert D. Thomas
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 D. Thomas' NPI number?
Dr. Robert D. Thomas' NPI number is 1104821990. It was assigned on June 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert D. Thomas?
Dr. Robert D. Thomas is a diagnostic radiologist in Sonora, California. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Robert D. Thomas practice?
Dr. Thomas practices at 1000 Greenley Road, Sonora, CA 95370. Dr. Thomas' primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health. Dmand AI also links Dr. Thomas to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Robert D. Thomas' office phone number?
The practice phone on file for Dr. Thomas is (209) 536-5000.
What is Dr. Robert D. Thomas' medical license number?
Dr. Thomas holds Tennessee license 32044, one of the licenses on file in 6 states.
Which states has Dr. Robert D. Thomas been licensed in?
Dmand AI has state licenses on file for Dr. Thomas in Tennessee (1999 to 2026), North Carolina (since 2025), Oregon (since 1997), California (2018 to 2027), Indiana (2022) and Georgia (2001 to 2005).
Which hospitals is Dr. Robert D. Thomas affiliated with?
Dr. Thomas practices at Adventist Health Sonora in Sonora, California. Dr. Thomas is also affiliated with Doctors Medical Center Modesto. Dmand AI links Dr. Thomas to 1 more hospital.
What medical group is Dr. Robert D. Thomas part of?
Dr. Thomas is linked to Jason L Hwang MD Inc. Dmand AI links Dr. Thomas to 2 more medical groups.
Does Dr. Robert D. Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 10,072 services in 2024, and Dr. Thomas accepts Medicare assignment.
What is Dr. Robert D. Thomas' MIPS score?
Dr. Thomas' MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Robert D. Thomas see?
CMS counts 5,574 Medicare patients who saw Dr. Thomas in 2024, with an average age of 74.
Is Dr. Robert D. Thomas board certified?
Yes. Dr. Thomas is board certified in diagnostic radiology by the American Board of Radiology.
What services does Dr. Robert D. Thomas bill to Medicare?
In 2024, Dr. Thomas' most billed Medicare services were diagnostic imaging (71045), diagnostic imaging (71046) and radiation oncology (77080).
Where did Dr. Robert D. Thomas go to medical school?
Dr. Thomas graduated from University of Cape Town Faculty of Medicine in 1985.
Has Dr. Robert D. Thomas received payments from drug or device companies?
CMS Open Payments shows $37 in general payments to Dr. Thomas from 2 companies from 2023 to 2024. The largest total came from Abbvie Inc.
How long has Dr. Robert D. Thomas been practicing?
Dr. Thomas graduated from medical school in 1985, 41 years ago.
What insurance does Dr. Robert D. Thomas accept?
Dr. Thomas is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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