Dr. Atul T. Roy, MD
- Medicare services, 2024
- 6,691
- Medicare patients, 2024
- 733
- Part D claims, 2024
- 2,637
- Publications
- 2
- Hospital affiliations
- 3
- Practice address
- 3376 N Highway 59, Ste I, Merced, CA 95348
- Practice phone
- Call (209) 383-7370
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Satellite Healthcare, Merced
Dialysis Center - Independent · Merced, California
Find Dr. Roy'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. Atul T. Roy is a nephrologist in Merced, California
Dr. Roy practices at Satellite Healthcare, Merced in Merced, California.
Dr. Roy's NPI, 1467496505, was assigned on June 16, 2006. Dr. Roy graduated from American University of the Caribbean School of Medicine in 1982. Dr. Roy holds California license A44403.
- NPI
- 1467496505NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193621076
- NPI enumeration date
- June 16, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (209) 383-7370
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Atul T. Roy practices at Satellite Healthcare, Merced in Merced, California
Dr. Roy's primary practice is Satellite Healthcare, Merced, at 3376 N Highway 59, Ste I, Merced, CA 95348 in Merced County. The practice phone is (209) 383-7370.
- Satellite Healthcare, Merced3376 N Highway 59, Ste I, Merced, CA 95348 · Merced CountyPhone(209) 383-7370
Source: Dmand AI Affiliation Data
Dr. Atul T. Roy is affiliated with 9 sites of care and 2 medical groups
Dr. Roy's primary practice is Satellite Healthcare, Merced in Merced, California. Dr. Roy is also affiliated with Dignity Health - Mercy Medical Center. The medical group on file is The Nephrology Group, Inc. Dmand AI also links Dr. Roy to 2 more hospitals, 4 dialysis centers, 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. Atul T. Roy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roy practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Satellite Healthcare, Merced | 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. Atul T. Roy is one of 1,401 nephrologists in California
Nephrology is Dr. Roy's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Roy is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Roy's licenses on file in 4 states: California, Oklahoma, Idaho and Iowa.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
- Oklahoma license
- Idaho license
- Iowa license
Clinical focus
Dmand AI lists acute kidney failure, chronic anemia, chronic kidney disease, fluid and electrolyte imbalances, hypercalcemia, kidney cysts and parathyroid gland disorder among the conditions Dr. Roy treats.
Nephrologists near Dr. Roy
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. Atul T. Roy billed Medicare for 6,691 services in 2024
CMS data shows 6,691 Medicare services from Dr. Roy across 36 procedure codes in 2024, for 733 Medicare patients. Medicare paid $399,411 for them.
Dr. Roy's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 3,5132024: 3,5641%
- Office and hospital visits
- 2023: 1,9212024: 1,62016%
- Tests and treatments
- 2023: 1,1962024: 1,03813%
- Surgery
- 2023: 4272024: 4221%
- Other services
- 2023: 3902024: 4788%
Where Dr. Roy's Medicare services took place, 2024
- In an office5,83787%
- In a facility85413%
Dr. Roy compared with the California median for nephrologists, 2024
- Dr. Roy
- California median
- Medicare services
- 6,691vs 1,0846.2 times
- Medicare patients
- 733vs 3072.4 times
- Part D claims
- 2,327vs 9552.4 times
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Roy'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. Roy?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Roy and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Atul T. Roy treated 733 Medicare patients in 2024, average age 75
CMS counts 733 Medicare patients who saw Dr. Roy in 2024. The largest group is 75 to 84, with 269 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 44% are also on Medicaid. Their average risk score is 3.29, 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. Roy's median patient age at 72, with 49% women.
Dr. Roy's Medicare patients by age, 2024
Dr. Roy's Medicare patients by sex, 2024
- Women38052%
- Men35348%
Chronic conditions among Dr. Roy's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Ischemic heart disease46%
- Heart failure40%
- Arthritis38%
- Atrial fibrillation29%
Share of Medicare patients with each condition. A patient can have several.
Dr. Roy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
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. Atul T. Roy wrote 2,637 Medicare Part D claims in 2024
In 2024, Dr. Roy wrote 2,637 Medicare Part D claims for 450 patients. 62% of them were for generic drugs. CMS names the drug for 2,327 of them, across 44 drugs with 11 or more claims each, at $1,491,665 in total drug cost. In 2023, CMS named 2,208 claims across 48 drugs.
Dr. Roy's Part D claims by kind of drug, 2024
- Generic1,648 claims62%
- Brand-name and other989 claims38%
Dr. Roy'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. Roy's Part D claims, 2024
- Antibiotics1%19 of 2,637 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: 2,2082024: 2,3275%
Drugs named by CMS: 44 in 2024, 48 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. Atul T. Roy offers telehealth to Medicare patients
Dr. Roy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Roy as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Atul T. Roy has 2 publications on record
Dmand AI links 2 papers to Dr. Roy.
Recent publications by Dr. Roy
See who Dr. Roy researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Roy works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Atul T. Roy received $2,248 in industry payments from 2016 to 2025
CMS Open Payments shows 102 general payments to Dr. Roy from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 89% of the total. Novo Nordisk Inc paid the most, $530.
General payments to Dr. Roy by program year, 2016 to 2025
General payments to Dr. Roy by kind, 2016 to 2025
- Food and beverage$2,01289%
- Education$23611%
Companies that paid Dr. Roy 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. Atul T. Roy graduated from American University of the Caribbean School of Medicine
Dr. Roy graduated from American University of the Caribbean School of Medicine in 1982.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Atul T. Roy accepts plans from 11 insurance carriers
Dr. Roy is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- +3 more carriersWith a free account
Plan types Dr. Roy accepts, by number of carriers
- Medicare7
- PPO7
- HMO4
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Atul T. Roy'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Atul T. Roy
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. Atul T. Roy's NPI number?
Dr. Atul T. Roy's NPI number is 1467496505. It was assigned on June 16, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Atul T. Roy?
Dr. Atul T. Roy is a nephrologist in Merced, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Atul T. Roy practice?
Dr. Roy practices at 3376 N Highway 59, Ste I, Merced, CA 95348. Dr. Roy's primary practice is Satellite Healthcare, Merced in Merced, California. Dmand AI also links Dr. Roy to 2 hospitals, 4 dialysis centers, 1 group practice or clinic and 1 medical group.
What is Dr. Atul T. Roy's office phone number?
The practice phone on file for Dr. Roy is (209) 383-7370.
What is Dr. Atul T. Roy's medical license number?
Dr. Roy holds California license A44403, one of the licenses on file in 4 states.
Which states has Dr. Atul T. Roy been licensed in?
Dmand AI has state licenses on file for Dr. Roy in California (1988 to 2026), Oklahoma (2015 to 2023), Idaho (2020 to 2021) and Iowa (1983 to 1991).
Which hospitals is Dr. Atul T. Roy affiliated with?
Dr. Roy is affiliated with Dignity Health - Mercy Medical Center. Dmand AI links Dr. Roy to 2 more hospitals.
What medical group is Dr. Atul T. Roy part of?
Dr. Roy is linked to The Nephrology Group, Inc. Dmand AI links Dr. Roy to 1 more medical group.
Does Dr. Atul T. Roy accept Medicare?
Yes. CMS data shows Dr. Roy billed Medicare for 6,691 services in 2024, and Dr. Roy accepts Medicare assignment.
Does Dr. Atul T. Roy offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Roy as offering telehealth services.
Show 9 more questionsShow fewer questions
How many Medicare patients does Dr. Atul T. Roy see?
CMS counts 733 Medicare patients who saw Dr. Roy in 2024, with an average age of 75.
Is Dr. Atul T. Roy board certified?
Yes. Dr. Roy is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Atul T. Roy bill to Medicare?
In 2024, Dr. Roy's most billed Medicare services were dialysis (90960), office visit, established patient (99214) and surgery: heart and blood vessels (36415).
Where did Dr. Atul T. Roy go to medical school?
Dr. Roy graduated from American University of the Caribbean School of Medicine in 1982.
What drugs does Dr. Atul T. Roy prescribe most?
In 2024 Medicare Part D data, Dr. Roy's most prescribed drugs by claims were Xphozah, Losartan Potassium and Jardiance.
Has Dr. Atul T. Roy received payments from drug or device companies?
CMS Open Payments shows $2,248 in general payments to Dr. Roy from 22 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. Atul T. Roy been practicing?
Dr. Roy graduated from medical school in 1982, 44 years ago.
Does Dr. Atul T. Roy do research?
Dmand AI links 2 publications to Dr. Roy.
What insurance does Dr. Atul T. Roy accept?
Dr. Roy is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.
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