J Clin Immunol
Acute Kidney InjuryAntibodies, Antineutrophil CytoplasmicAutoantibodies
Dr. Douglas E. Roberts, MD
NPI1083698062
- Medicare services, 2024
- 572
- Medicare patients, 2024
- 253
- Part D claims, 2024
- 2,981
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 4001 J St, Sacramento, CA 95819
- Practice phone
- Call (916) 453-4453
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Roberts' 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. Douglas E. Roberts is a rheumatologist in Sacramento, California
Dr. Roberts practices at Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health.
Dr. Roberts' NPI, 1083698062, was assigned on December 2, 2005. Dr. Roberts graduated from UNR Med in 1984. Dr. Roberts' California license number on file is G56980.
NPI and contact details
- NPI
- 1083698062NPI Registry (opens in a new tab)
- NPI enumeration date
- December 2, 2005
- NPI status
- Active
- Practice phone
- (916) 453-4453
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 68
- Medical school graduation
- 1984
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Douglas E. Roberts practices at Dignity Health - Mercy General Hospital in Sacramento, California
Dr. Roberts' primary practice is Dignity Health - Mercy General Hospital, at 4001 J St, Sacramento, CA 95819 in Sacramento County. The practice phone is (916) 453-4453.
- Dignity Health - Mercy General Hospital4001 J St, Sacramento, CA 95819 · Sacramento CountyPhone(916) 453-4453
Source: Dmand AI Affiliation Data
Dr. Douglas E. Roberts is affiliated with 3 sites of care and 1 medical group
Dr. Roberts' primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. The medical group on file is UC Davis Medical Group. Dmand AI also links Dr. Roberts to 1 more hospital and 1 group practice or clinic, each named with a free account.
UC Davis Medical Group1 hospitalName with a free account1 group practice or clinicName with a free account
See all 4 affiliations for Dr. RobertsSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Douglas E. Roberts' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roberts practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Mercy General Hospital | 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. Douglas E. Roberts is one of 821 rheumatologists in California
Rheumatology is Dr. Roberts' primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Roberts is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Roberts' licenses on file in 3 states: California, Arizona and New Mexico.
Specialties and state licenses
- Rheumatology, CaliforniaPrimary
- Arizona license
- New Mexico license
Clinical focus
Dmand AI lists arteritis, arthritis, fibromyalgia and chronic pain, gout, joint arthropathy, joint pain, lupus and muscle disease among the conditions Dr. Roberts treats.
Rheumatologists near Dr. Roberts
Counts of rheumatologists 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. Douglas E. Roberts billed Medicare for 572 services in 2024
CMS data shows 572 Medicare services from Dr. Roberts across 4 procedure codes in 2024, all of them office visits, for 253 Medicare patients. Medicare paid $50,232 for them. Every service was in an office.
Medicare services, 2024572
Medicare patients253
Paid by Medicare$50,232
Procedure codes4
Dr. Roberts' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 7282024: 57221%
- Drugs given in the office
- 2023: 542024: 0100%
Dr. Roberts compared with the California median for rheumatologists, 2024
- Dr. Roberts
- California median
- Medicare services
- 572vs 90036% below
- Medicare patients
- 253vs 21617% above
- Part D claims
- 2,807vs 9622.9 times
Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.
Dr. Roberts' 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. Roberts and other rheumatologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas E. Roberts treated 253 Medicare patients in 2024, average age 74
CMS counts 253 Medicare patients who saw Dr. Roberts in 2024. The largest group is 65 to 74, with 101 patients. 75% of them have arthritis, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Roberts' median patient age at 64, with 70% women.
Medicare patients, 2024253
Average age74
Average risk score1.49
Also on Medicaid11%
Dr. Roberts' Medicare patients by age, 2024
Dr. Roberts' Medicare patients by sex, 2024
- Women17870%
- Men7530%
Chronic conditions among Dr. Roberts' Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure71%
- Osteoporosis30%
- Atrial fibrillation23%
- Chronic kidney disease23%
- Diabetes23%
- Ischemic heart disease23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Roberts' 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
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas E. Roberts wrote 2,981 Medicare Part D claims in 2024
In 2024, Dr. Roberts wrote 2,981 Medicare Part D claims for 346 patients. 74% of them were for generic drugs. CMS names the drug for 2,807 of them, across 40 drugs with 11 or more claims each, at $3,935,038 in total drug cost. In 2023, CMS named 2,855 claims across 45 drugs.
Part D claims, 20242,981
Drugs named by CMS40
Total drug cost$3.9M
Part D patients346
Dr. Roberts' Part D claims by kind of drug, 2024
- Generic2,197 claims74%
- Brand-name740 claims25%
- Other44 claims1%
Dr. Roberts' 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. Roberts' Part D claims, 2024
- Opioids2%66 of 2,981 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: 2,8552024: 2,8072%
Drugs named by CMS: 40 in 2024, 45 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
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Dr. Douglas E. Roberts has 3 publications on record
Dmand AI links 3 papers to Dr. Roberts.
Papers3
Recent publications by Dr. Roberts
Arthritis Rheum
Anti-Inflammatory Agents, Non-SteroidalAntioxidantsDapsone
J Trop Pediatr
Antibodies, ViralBurkitt LymphomaHerpesvirus 4, Human
See who Dr. Roberts researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Roberts works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Douglas E. Roberts received $33,665 in industry payments from 2016 to 2024
CMS Open Payments shows 2,109 general payments to Dr. Roberts from 45 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 90% of the total. Novartis Pharmaceuticals Corporation paid the most, $5,809.
General payments to Dr. Roberts by program year, 2016 to 2024
General payments to Dr. Roberts by kind, 2016 to 2024
$33.7Kin total
- Food and beverage$30,37890%
- Consulting fees$2,9939%
- Education$2941%
Companies that paid Dr. Roberts the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Douglas E. Roberts has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Roberts, most recently CMS Stage 1 2012 in 2012.
Awards and honors for Dr. Roberts
- 2012
- CMS Stage 1 2012
- Undated
- ACR Fellow
Source: Dmand AI Professional Profile Data
Dr. Douglas E. Roberts graduated from UNR Med
Dr. Roberts graduated from UNR Med in 1984. Dr. Roberts is a member of ACR.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Douglas E. Roberts accepts plans from 7 insurance carriers
Dr. Roberts is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
- NV State Medicaid
Plan types Dr. Roberts accepts, by number of carriers
- Medicare6
- PPO4
- EPO1
- HMO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Douglas E. Roberts'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) |
| 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) |
| 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. Douglas E. Roberts
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. Douglas E. Roberts' NPI number?
Dr. Douglas E. Roberts' NPI number is 1083698062. It was assigned on December 2, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas E. Roberts?
Dr. Douglas E. Roberts is a rheumatologist in Sacramento, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Douglas E. Roberts practice?
Dr. Roberts practices at 4001 J St, Sacramento, CA 95819. Dr. Roberts' primary practice is Dignity Health - Mercy General Hospital in Sacramento, California, part of CommonSpirit Health. Dmand AI also links Dr. Roberts to 1 hospital and 1 group practice or clinic.
What is Dr. Douglas E. Roberts' office phone number?
The practice phone on file for Dr. Roberts is (916) 453-4453.
What is Dr. Douglas E. Roberts' medical license number?
Dr. Roberts' California license number on file is G56980, one of the licenses on file in 3 states.
Which states has Dr. Douglas E. Roberts been licensed in?
Dmand AI has state licenses on file for Dr. Roberts in California (1986 to 2025), Arizona (since 1994) and New Mexico (1990 to 1995).
Which hospitals is Dr. Douglas E. Roberts affiliated with?
Dr. Roberts practices at Dignity Health - Mercy General Hospital in Sacramento, California. Dmand AI links Dr. Roberts to 1 more hospital.
What medical group is Dr. Douglas E. Roberts part of?
Dr. Roberts is linked to UC Davis Medical Group.
Does Dr. Douglas E. Roberts accept Medicare?
Yes. CMS data shows Dr. Roberts billed Medicare for 572 services in 2024.
How many Medicare patients does Dr. Douglas E. Roberts see?
CMS counts 253 Medicare patients who saw Dr. Roberts in 2024, with an average age of 74.
Show 8 more questionsShow fewer questions
Is Dr. Douglas E. Roberts board certified?
Yes. Dr. Roberts is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Douglas E. Roberts bill to Medicare?
In 2024, Dr. Roberts' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Dr. Douglas E. Roberts go to medical school?
Dr. Roberts graduated from UNR Med in 1984.
What drugs does Dr. Douglas E. Roberts prescribe most?
In 2024 Medicare Part D data, Dr. Roberts' most prescribed drugs by claims were Prednisone, Methotrexate and Hydroxychloroquine Sulfate.
Has Dr. Douglas E. Roberts received payments from drug or device companies?
CMS Open Payments shows $33,665 in general payments to Dr. Roberts from 45 companies from 2016 to 2024. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Douglas E. Roberts been practicing?
Dr. Roberts graduated from medical school in 1984, 42 years ago.
Does Dr. Douglas E. Roberts do research?
Dmand AI links 3 publications to Dr. Roberts.
What insurance does Dr. Douglas E. Roberts accept?
Dr. Roberts is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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