Dr. Robert B. Stewart, MD
- Medicare services, 2024
- 2,128
- Medicare patients, 2024
- 1,078
- Part D claims, 2024
- 3,034
- Hospital affiliations
- 3
- Industry payments
- $382
- Practice address
- 1415 Kincaid Street, Mount Vernon, WA 98274
- Practice phone
- Call (360) 424-4111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stewart's professional email, personal email and mobile number
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Dr. Robert B. Stewart is a cardiologist in Mount Vernon, Washington
Dr. Stewart practices at Skagit Valley Hospital in Mount Vernon, Washington, part of Skagit Regional Health.
Dr. Stewart's NPI, 1578599445, was assigned on June 23, 2006. Dr. Stewart graduated from University of Washington School of Medicine in 1988. Dr. Stewart holds Washington license MD00028275.
- NPI
- 1578599445NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406802958
- NPI enumeration date
- June 23, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (360) 424-4111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 64
- Medical school graduation
- 1988
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert B. Stewart practices at Skagit Valley Hospital in Mount Vernon, Washington
Dr. Stewart's primary practice is Skagit Valley Hospital, at 1415 Kincaid Street, Mount Vernon, WA 98274 in Skagit County. The practice phone is (360) 424-4111.
- Skagit Valley Hospital1415 Kincaid Street, Mount Vernon, WA 98274 · Skagit CountyPhone(360) 424-4111
Source: Dmand AI Affiliation Data
Dr. Robert B. Stewart is affiliated with 4 sites of care and 1 medical group
Dr. Stewart's primary practice is Skagit Valley Hospital in Mount Vernon, Washington, part of Skagit Regional Health. Dr. Stewart is also affiliated with Island Health. The medical group on file is Skagit Regional Clinics. Dmand AI also links Dr. Stewart to 1 more hospital and 1 community health center, 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 B. Stewart's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stewart practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Skagit Valley Hospital | Available with a free account |
| +3 more affiliated sites | 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 Skagit Regional Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Robert B. Stewart is one of 416 cardiologists in Washington
Cardiovascular disease is Dr. Stewart's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Stewart is licensed in Washington.
Specialties and state licenses
- Cardiovascular disease, WashingtonPrimary
Cardiologists near Dr. Stewart
Counts of cardiologists 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 B. Stewart billed Medicare for 2,128 services in 2024
CMS data shows 2,128 Medicare services from Dr. Stewart across 12 procedure codes in 2024, for 1,078 Medicare patients. Medicare paid $63,264 for them.
Dr. Stewart's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,9052024: 1,59916%
- Office and hospital visits
- 2023: 4292024: 34719%
- Other services
- 2023: 1752024: 12827%
- Imaging
- 2023: 492024: 5410%
Where Dr. Stewart's Medicare services took place, 2024
- In an office77536%
- In a facility1,35364%
Dr. Stewart compared with the Washington median for cardiologists, 2024
- Dr. Stewart
- Washington median
- Medicare services
- 2,128vs 1,52040% above
- Medicare patients
- 1,078vs 84627% above
- Part D claims
- 2,839vs 1,72165% above
Medians across 425 cardiologists in Washington with Dmand AI profiles that report each measure.
Dr. Stewart'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Stewart and other cardiologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert B. Stewart treated 1,078 Medicare patients in 2024, average age 77
CMS counts 1,078 Medicare patients who saw Dr. Stewart in 2024. The largest group is 75 to 84, with 428 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.60, 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. Stewart's median patient age at 74, with 49% women.
Dr. Stewart's Medicare patients by age, 2024
Dr. Stewart's Medicare patients by sex, 2024
- Women54250%
- Men53650%
Chronic conditions among Dr. Stewart's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis47%
- Atrial fibrillation42%
- Ischemic heart disease42%
- Heart failure35%
- Chronic kidney disease33%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stewart's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
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. Robert B. Stewart wrote 3,034 Medicare Part D claims in 2024
In 2024, Dr. Stewart wrote 3,034 Medicare Part D claims for 241 patients. 91% of them were for generic drugs. CMS names the drug for 2,839 of them, across 31 drugs with 11 or more claims each, at $321,683 in total drug cost. In 2023, CMS named 2,946 claims across 32 drugs.
Dr. Stewart's Part D claims by kind of drug, 2024
- Generic2,771 claims91%
- Brand-name263 claims9%
Dr. Stewart'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,9462024: 2,8394%
Drugs named by CMS: 31 in 2024, 32 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. Robert B. Stewart takes part in Medicare
Dr. Stewart accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Coronary angioplasty and stenting: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert B. Stewart received $382 in industry payments from 2016 to 2025
CMS Open Payments shows 6 general payments to Dr. Stewart from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Acumed LLC paid the most, $86.
General payments to Dr. Stewart by program year, 2016 to 2025
Companies that paid Dr. Stewart 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. Robert B. Stewart graduated from University of Washington School of Medicine
Dr. Stewart graduated from University of Washington School of Medicine in 1988.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert B. Stewart'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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 B. Stewart
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 B. Stewart's NPI number?
Dr. Robert B. Stewart's NPI number is 1578599445. It was assigned on June 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert B. Stewart?
Dr. Robert B. Stewart is a cardiologist in Mount Vernon, Washington. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. Robert B. Stewart practice?
Dr. Stewart practices at 1415 Kincaid Street, Mount Vernon, WA 98274. Dr. Stewart's primary practice is Skagit Valley Hospital in Mount Vernon, Washington, part of Skagit Regional Health. Dmand AI also links Dr. Stewart to 1 hospital and 1 community health center.
What is Dr. Robert B. Stewart's office phone number?
The practice phone on file for Dr. Stewart is (360) 424-4111.
What is Dr. Robert B. Stewart's medical license number?
Dr. Stewart holds Washington license MD00028275.
Which hospitals is Dr. Robert B. Stewart affiliated with?
Dr. Stewart practices at Skagit Valley Hospital in Mount Vernon, Washington. Dr. Stewart is also affiliated with Island Health. Dmand AI links Dr. Stewart to 1 more hospital.
What medical group is Dr. Robert B. Stewart part of?
Dr. Stewart is linked to Skagit Regional Clinics.
Does Dr. Robert B. Stewart accept Medicare?
Yes. CMS data shows Dr. Stewart billed Medicare for 2,128 services in 2024, and Dr. Stewart accepts Medicare assignment.
How many Medicare patients does Dr. Robert B. Stewart see?
CMS counts 1,078 Medicare patients who saw Dr. Stewart in 2024, with an average age of 77.
What services does Dr. Robert B. Stewart bill to Medicare?
In 2024, Dr. Stewart's most billed Medicare services were heart test or procedure (93010), office visit, established patient (99215) and heart test or procedure (93000).
Show 4 more questionsShow fewer questions
Where did Dr. Robert B. Stewart go to medical school?
Dr. Stewart graduated from University of Washington School of Medicine in 1988.
What drugs does Dr. Robert B. Stewart prescribe most?
In 2024 Medicare Part D data, Dr. Stewart's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Metoprolol Succinate.
Has Dr. Robert B. Stewart received payments from drug or device companies?
CMS Open Payments shows $382 in general payments to Dr. Stewart from 6 companies from 2016 to 2025. The largest total came from Acumed LLC.
How long has Dr. Robert B. Stewart been practicing?
Dr. Stewart graduated from medical school in 1988, 38 years ago.
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