Dr. Ann Leu Thomas, MD, MS
- Medicare services, 2024
- 2,475
- Medicare patients, 2024
- 919
- Part D claims, 2024
- 1,501
- Hospital affiliations
- 1
- Industry payments
- $1,586
- Practice address
- 2 Medical Plaza Ste 105, Roseville, CA 95661
- Practice phone
- Call (916) 865-1469
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sutter Imaging Roseville II
Mammography / Breast Imaging Center · Roseville, California
Find Dr. Thomas' professional email, personal email and mobile number
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Dr. Ann Leu Thomas is an ophthalmologist in Roseville, California
Dr. Thomas practices at Sutter Imaging Roseville II in Roseville, California.
Dr. Thomas' NPI, 1275910291, was assigned on April 28, 2015. Dr. Thomas graduated from WashU Medicine in 2015. Dr. Thomas holds California license A145330.
- NPI
- 1275910291NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779918412
- NPI enumeration date
- April 28, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 865-1469
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ann Leu Thomas practices at Sutter Imaging Roseville II in Roseville, California
Dr. Thomas' primary practice is Sutter Imaging Roseville II, at 2 Medical Plaza Ste 105, Roseville, CA 95661. The practice phone is (916) 865-1469.
- Sutter Imaging Roseville II2 Medical Plaza Ste 105, Roseville, CA 95661Phone(916) 865-1469
Source: Dmand AI Affiliation Data
Dr. Ann Leu Thomas is affiliated with 3 sites of care and 1 medical group
Dr. Thomas' primary practice is Sutter Imaging Roseville II in Roseville, California. Dr. Thomas is also affiliated with Sutter Solano Medical Center. The medical group on file is SGMF Radiology. Dmand AI also links Dr. Thomas to 1 more group practice or clinic, named with a free account. Dr. Thomas' employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ann Leu Thomas' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Imaging Roseville II | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ann Leu Thomas is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Thomas is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Thomas is licensed in California.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
Ophthalmologists near Dr. Thomas
Counts of ophthalmologists 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. Ann Leu Thomas billed Medicare for 2,475 services in 2024
CMS data shows 2,475 Medicare services from Dr. Thomas across 19 procedure codes in 2024, for 919 Medicare patients. Medicare paid $191,009 for them.
Dr. Thomas' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,1282024: 1,0993%
- Office and hospital visits
- 2023: 7242024: 99137%
- Surgery
- 2023: 2152024: 16324%
- Other services
- 2023: 02024: 126
- Imaging
- 2023: 1142024: 9616%
Where Dr. Thomas' Medicare services took place, 2024
- In an office2,36696%
- In a facility1094%
Dr. Thomas compared with the California median for ophthalmologists, 2024
- Dr. Thomas
- California median
- Medicare services
- 2,475vs 1,0792.3 times
- Medicare patients
- 919vs 4212.2 times
- Part D claims
- 1,367vs 6182.2 times
Medians across 2,568 ophthalmologists 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.
Need commercial claims for Dr. Thomas?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Thomas and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ann Leu Thomas treated 919 Medicare patients in 2024, average age 76
CMS counts 919 Medicare patients who saw Dr. Thomas in 2024. The largest group is 75 to 84, with 366 patients. 70% of them have high blood pressure, and 65% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.10, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 70, with 57% women.
Dr. Thomas' Medicare patients by age, 2024
Dr. Thomas' Medicare patients by sex, 2024
- Women55160%
- Men36840%
Chronic conditions among Dr. Thomas' Medicare patients, 2024
- High blood pressure70%
- High cholesterol65%
- Arthritis43%
- Diabetes42%
- Chronic kidney disease26%
- Ischemic heart disease17%
- Cancer16%
- Mood disorders16%
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 70
Patient panel by sex, all payers
- Women57%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ann Leu Thomas wrote 1,501 Medicare Part D claims in 2024
In 2024, Dr. Thomas wrote 1,501 Medicare Part D claims for 423 patients. 58% of them were for generic drugs. CMS names the drug for 1,367 of them, across 18 drugs with 11 or more claims each, at $111,868 in total drug cost. In 2023, CMS named 1,024 claims across 17 drugs.
Dr. Thomas' Part D claims by kind of drug, 2024
- Generic873 claims58%
- Brand-name628 claims42%
Dr. Thomas' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,0242024: 1,36733%
Drugs named by CMS: 18 in 2024, 17 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. Ann Leu Thomas ranks in the 82nd percentile for cataract surgery in Medicare
Dr. Thomas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 182 procedures of cataract surgery by Dr. Thomas, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Thomas ranks in Medicare procedure volume
- Cataract surgery
- 82nd percentile182 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ann Leu Thomas received $1,586 in industry payments from 2018 to 2025
CMS Open Payments shows 25 general payments to Dr. Thomas from 7 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $1,123.
General payments to Dr. Thomas by program year, 2018 to 2025
Companies that paid Dr. Thomas the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ann Leu Thomas has 1 award and honors on record
Dmand AI lists 1 award for Dr. Thomas, most recently Resident Teaching Award in 2023.
Awards and honors for Dr. Thomas
- 2023
- Resident Teaching Award
Source: Dmand AI Professional Profile Data
Dr. Ann Leu Thomas graduated from WashU Medicine
Dr. Thomas graduated from WashU Medicine in 2015.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Ann Leu Thomas accepts plans from 13 insurance carriers
Dr. Thomas is in network with 13 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
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +5 more carriersWith a free account
Plan types Dr. Thomas accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Ann Leu 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) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Ann Leu 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. Ann Leu Thomas' NPI number?
Dr. Ann Leu Thomas' NPI number is 1275910291. It was assigned on April 28, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Ann Leu Thomas?
Dr. Ann Leu Thomas is an ophthalmologist in Roseville, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ann Leu Thomas practice?
Dr. Thomas practices at 2 Medical Plaza Ste 105, Roseville, CA 95661. Dr. Thomas' primary practice is Sutter Imaging Roseville II in Roseville, California. Dmand AI also links Dr. Thomas to 1 group practice or clinic.
What is Dr. Ann Leu Thomas' office phone number?
The practice phone on file for Dr. Thomas is (916) 865-1469.
What is Dr. Ann Leu Thomas' medical license number?
Dr. Thomas holds California license A145330.
Which hospitals is Dr. Ann Leu Thomas affiliated with?
Dr. Thomas is affiliated with Sutter Solano Medical Center.
What medical group is Dr. Ann Leu Thomas part of?
Dr. Thomas is linked to SGMF Radiology.
Does Dr. Ann Leu Thomas accept Medicare?
Yes. CMS data shows Dr. Thomas billed Medicare for 2,475 services in 2024, and Dr. Thomas accepts Medicare assignment.
How many Medicare patients does Dr. Ann Leu Thomas see?
CMS counts 919 Medicare patients who saw Dr. Thomas in 2024, with an average age of 76.
Is Dr. Ann Leu Thomas board certified?
Yes. Dr. Thomas is board certified in ophthalmology by the American Board of Ophthalmology.
Show 6 more questionsShow fewer questions
What services does Dr. Ann Leu Thomas bill to Medicare?
In 2024, Dr. Thomas' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and eye exam or test (92133).
Where did Dr. Ann Leu Thomas go to medical school?
Dr. Thomas graduated from WashU Medicine in 2015.
What drugs does Dr. Ann Leu Thomas prescribe most?
In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.
Has Dr. Ann Leu Thomas received payments from drug or device companies?
CMS Open Payments shows $1,586 in general payments to Dr. Thomas from 7 companies from 2018 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Ann Leu Thomas been practicing?
Dr. Thomas graduated from medical school in 2015, 11 years ago.
What insurance does Dr. Ann Leu Thomas accept?
Dr. Thomas is in network with 13 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.
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