Dr. Marcus R. Kubosumi, MD
- Medicare services, 2023
- 32
- Part D claims, 2024
- 1,798
- Hospital affiliations
- 1
- Industry payments
- $88
- Medical groups
- 2
- Practice address
- 1201 S Miller Street, Wenatchee, WA 98807
- Practice phone
- Call (509) 662-1511
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Kubosumi's professional email, personal email and mobile number
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Dr. Marcus R. Kubosumi is an internist in Wenatchee, Washington
Dr. Kubosumi practices at Confluence Health Hospital | Central Campus in Wenatchee, Washington, part of Confluence Health.
Dr. Kubosumi's NPI, 1639195985, was assigned on July 13, 2006. Dr. Kubosumi graduated from University of Utah School of Medicine in 1984. Dr. Kubosumi holds Washington license MD00024714.
- NPI
- 1639195985NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4880794833
- NPI enumeration date
- July 13, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (509) 662-1511
- 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; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Marcus R. Kubosumi practices at Confluence Health Hospital | Central Campus in Wenatchee, Washington
Dr. Kubosumi's primary practice is Confluence Health Hospital | Central Campus, at 1201 S Miller Street, Wenatchee, WA 98807 in Chelan County. The practice phone is (509) 662-1511.
- Confluence Health Hospital | Central Campus1201 S Miller Street, Wenatchee, WA 98807 · Chelan CountyPhone(509) 662-1511
Source: Dmand AI Affiliation Data
Dr. Marcus R. Kubosumi is affiliated with 1 site of care and 2 medical groups
Dr. Kubosumi's primary practice is Confluence Health Hospital | Central Campus in Wenatchee, Washington, part of Confluence Health. The medical group on file is Confluence Health. Dmand AI also links Dr. Kubosumi to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Marcus R. Kubosumi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kubosumi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Confluence Health Hospital | Central Campus | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Confluence Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Marcus R. Kubosumi is one of 2,689 internists in Washington
Internal medicine is Dr. Kubosumi's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kubosumi is licensed in Washington.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
Internists near Dr. Kubosumi
Counts of internists 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. Marcus R. Kubosumi billed Medicare for 32 services in 2023
CMS data shows 32 Medicare services from Dr. Kubosumi across 1 procedure code in 2023, all of them office visits. Medicare paid $725 for them. Every service was in an office.
Dr. Kubosumi's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 572023: 3244%
Dr. Kubosumi compared with the Washington median for internists, 2023
- Dr. Kubosumi
- Washington median
- Medicare services
- 32vs 36491% below
- Part D claims
- 1,354vs 1827.4 times
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Kubosumi's most billed Medicare procedure codes, 2023
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. Kubosumi?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kubosumi and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Marcus R. Kubosumi's patients have a median age of 67
Across all payers, Dmand AI patient panel data puts Dr. Kubosumi's median patient age at 67, with 58% women.
Dr. Kubosumi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women58%
- Men42%
Source: Dmand AI Patient Panel Data
Dr. Marcus R. Kubosumi wrote 1,798 Medicare Part D claims in 2024
In 2024, Dr. Kubosumi wrote 1,798 Medicare Part D claims for 379 patients. 92% of them were for generic drugs. CMS names the drug for 1,354 of them, across 35 drugs with 11 or more claims each, at $42,120 in total drug cost. In 2023, CMS named 7,845 claims across 110 drugs.
Dr. Kubosumi's Part D claims by kind of drug, 2024
- Generic1,659 claims92%
- Brand-name120 claims7%
- Other19 claims1%
Dr. Kubosumi'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: 7,8452024: 1,35483%
Drugs named by CMS: 35 in 2024, 110 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. Marcus R. Kubosumi takes part in Medicare
Dr. Kubosumi accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Marcus R. Kubosumi received $88 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Dr. Kubosumi from 1 drug or device company from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Merck Sharp & Dohme Corporation paid the most, $88.
General payments to Dr. Kubosumi by program year, 2016 to 2017
Companies that paid Dr. Kubosumi the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Marcus R. Kubosumi graduated from University of Utah School of Medicine
Dr. Kubosumi graduated from University of Utah School of Medicine in 1984.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Marcus R. Kubosumi'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 Data |
| 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) |
| 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. Marcus R. Kubosumi
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What is Dr. Marcus R. Kubosumi's NPI number?
Dr. Marcus R. Kubosumi's NPI number is 1639195985. It was assigned on July 13, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Marcus R. Kubosumi?
Dr. Marcus R. Kubosumi is an internist in Wenatchee, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Marcus R. Kubosumi practice?
Dr. Kubosumi practices at 1201 S Miller Street, Wenatchee, WA 98807. Dr. Kubosumi's primary practice is Confluence Health Hospital | Central Campus in Wenatchee, Washington, part of Confluence Health. Dmand AI also links Dr. Kubosumi to 1 medical group.
What is Dr. Marcus R. Kubosumi's office phone number?
The practice phone on file for Dr. Kubosumi is (509) 662-1511.
What is Dr. Marcus R. Kubosumi's medical license number?
Dr. Kubosumi holds Washington license MD00024714.
Which hospitals is Dr. Marcus R. Kubosumi affiliated with?
Dr. Kubosumi practices at Confluence Health Hospital | Central Campus in Wenatchee, Washington.
What medical group is Dr. Marcus R. Kubosumi part of?
Dr. Kubosumi is linked to Confluence Health. Dmand AI links Dr. Kubosumi to 1 more medical group.
Does Dr. Marcus R. Kubosumi accept Medicare?
Yes. CMS data shows Dr. Kubosumi billed Medicare for 32 services in 2023, and Dr. Kubosumi accepts Medicare assignment.
What services does Dr. Marcus R. Kubosumi bill to Medicare?
In 2023, Dr. Kubosumi's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Marcus R. Kubosumi go to medical school?
Dr. Kubosumi graduated from University of Utah School of Medicine in 1984.
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What drugs does Dr. Marcus R. Kubosumi prescribe most?
In 2024 Medicare Part D data, Dr. Kubosumi's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Lisinopril.
Has Dr. Marcus R. Kubosumi received payments from drug or device companies?
CMS Open Payments shows $88 in general payments to Dr. Kubosumi from 1 company from 2016 to 2017. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. Marcus R. Kubosumi been practicing?
Dr. Kubosumi graduated from medical school in 1984, 42 years ago.
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