Dr. Mark Thomas Sonderman, MD
- Medicare services, 2024
- 38
- Medicare patients, 2024
- 31
- Part D claims, 2024
- 72
- Publications
- 4
- MIPS score, 2024
- 94
- Practice address
- 1959 NE Pacific St Box 356151, Seattle, WA 98195
- Practice phone
- Call (206) 598-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Sonderman'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. Mark Thomas Sonderman is an internist in Seattle, Washington
Dr. Sonderman practices at UW Medical Center - Montlake in Seattle, Washington, part of University of Washington.
Dr. Sonderman's NPI, 1578128658, was assigned on May 5, 2019. Dr. Sonderman holds Washington license MD61401126.
- NPI
- 1578128658NPI Registry (opens in a new tab)
- NPI enumeration date
- May 5, 2019
- NPI status
- Active
- Practice phone
- (206) 598-3300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mark Thomas Sonderman practices at UW Medical Center - Montlake in Seattle, Washington
Dr. Sonderman's primary practice is UW Medical Center - Montlake, at 1959 NE Pacific St Box 356151, Seattle, WA 98195 in King County. The practice phone is (206) 598-3300.
- UW Medical Center - Montlake1959 NE Pacific St Box 356151, Seattle, WA 98195 · King CountyPhone(206) 598-3300
Source: Dmand AI Affiliation Data
Dr. Mark Thomas Sonderman is affiliated with 3 sites of care and 1 medical group
Dr. Sonderman's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. The medical group on file is UW Physicians. Dmand AI also links Dr. Sonderman to 1 more hospital and 1 hospital outpatient department, 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. Mark Thomas Sonderman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sonderman practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UW Medical Center - Montlake | 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. Mark Thomas Sonderman is one of 2,689 internists in Washington
Internal medicine is Dr. Sonderman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Sonderman's licenses on file in 2 states: Washington and Tennessee.
Specialties and state licenses
- Internal medicine, WashingtonPrimary
- Tennessee license
Internists near Dr. Sonderman
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. Mark Thomas Sonderman billed Medicare for 38 services in 2024
CMS data shows 38 Medicare services from Dr. Sonderman across 1 procedure code in 2024, for 31 Medicare patients. Medicare paid $2,620 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Sonderman's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1782024: 3879%
Dr. Sonderman compared with the Washington median for internists, 2024
- Dr. Sonderman
- Washington median
- Medicare services
- 38vs 36490% below
- Medicare patients
- 31vs 16581% below
- Part D claims
- 11vs 18294% below
Medians across 2,604 internists in Washington with Dmand AI profiles that report each measure.
Dr. Sonderman'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. Sonderman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sonderman and other internists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Thomas Sonderman treated 31 Medicare patients in 2024, average age 75
CMS counts 31 Medicare patients who saw Dr. Sonderman in 2024. The largest group is 75 to 84, with 15 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.46, 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. Sonderman's median patient age at 62, with 32% women.
Dr. Sonderman's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sonderman's Medicare patients by sex, 2024
- Women1548%
- Men1652%
Chronic conditions among Dr. Sonderman's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease75%
- Heart failure74%
- Chronic kidney disease71%
- Atrial fibrillation52%
- Diabetes48%
- Anxiety42%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sonderman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women32%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Thomas Sonderman wrote 72 Medicare Part D claims in 2024
In 2024, Dr. Sonderman wrote 72 Medicare Part D claims for 24 patients. 85% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $40 in total drug cost. In 2022, CMS named 40 claims across 3 drugs.
Dr. Sonderman's Part D claims by kind of drug, 2024
- Generic61 claims85%
- Brand-name11 claims15%
Dr. Sonderman'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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 402024: 1173%
Drugs named by CMS: 1 in 2024, 3 in 2022.
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. Mark Thomas Sonderman scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Sonderman for performance year 2024, reported through an alternative payment model (APM).
Dr. Sonderman's MIPS scores, performance year 2024
- 94of 100Final score
- 74.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark Thomas Sonderman has 4 publications on record
Dmand AI links 4 papers to Dr. Sonderman, published from 2018 to 2024. 2023 was the busiest year, with 2. Dr. Sonderman has published most often in JACC Adv. Dr. Sonderman's most frequent co-authors are Quinn S. Wells, MD, Aaron Weldon Aday, MD and Nazem W. Akoum, MD.
Dr. Sonderman's papers by year, 2018 to 2024
Dr. Sonderman's most frequent co-authors
- Quinn S. Wells, MD2 shared papers
- Aaron Weldon Aday, MD1 shared paper
- Nazem W. Akoum, MD1 shared paper
Recent publications by Dr. Sonderman
See who Dr. Sonderman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sonderman works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark Thomas Sonderman received $133 in industry payments in 2024
CMS Open Payments shows 1 general payment to Dr. Sonderman from 1 drug or device company in 2024. Education make up the largest share, 100% of the total. Abbott Laboratories paid the most, $133.
Companies that paid Dr. Sonderman the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Thomas Sonderman'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 | Clinician Public Reporting: Overall MIPS Performance (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) |
| 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. Mark Thomas Sonderman
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. Mark Thomas Sonderman's NPI number?
Dr. Mark Thomas Sonderman's NPI number is 1578128658. It was assigned on May 5, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Thomas Sonderman?
Dr. Mark Thomas Sonderman is an internist in Seattle, Washington. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark Thomas Sonderman practice?
Dr. Sonderman practices at 1959 NE Pacific St Box 356151, Seattle, WA 98195. Dr. Sonderman's primary practice is UW Medical Center - Montlake in Seattle, Washington, part of University of Washington. Dmand AI also links Dr. Sonderman to 1 hospital and 1 hospital outpatient department.
What is Dr. Mark Thomas Sonderman's office phone number?
The practice phone on file for Dr. Sonderman is (206) 598-3300.
What is Dr. Mark Thomas Sonderman's medical license number?
Dr. Sonderman holds Washington license MD61401126, one of the licenses on file in 2 states.
Which states has Dr. Mark Thomas Sonderman been licensed in?
Dmand AI has state licenses on file for Dr. Sonderman in Washington and Tennessee.
Which hospitals is Dr. Mark Thomas Sonderman affiliated with?
Dr. Sonderman practices at UW Medical Center - Montlake in Seattle, Washington. Dmand AI links Dr. Sonderman to 1 more hospital.
What medical group is Dr. Mark Thomas Sonderman part of?
Dr. Sonderman is linked to UW Physicians.
Does Dr. Mark Thomas Sonderman accept Medicare?
Yes. CMS data shows Dr. Sonderman billed Medicare for 38 services in 2024.
What is Dr. Mark Thomas Sonderman's MIPS score?
Dr. Sonderman's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
Show 7 more questionsShow fewer questions
How many Medicare patients does Dr. Mark Thomas Sonderman see?
CMS counts 31 Medicare patients who saw Dr. Sonderman in 2024, with an average age of 75.
What services does Dr. Mark Thomas Sonderman bill to Medicare?
In 2024, Dr. Sonderman's most billed Medicare services were hospital inpatient care (99232).
What drugs does Dr. Mark Thomas Sonderman prescribe most?
In 2024 Medicare Part D data, Dr. Sonderman's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. Mark Thomas Sonderman received payments from drug or device companies?
CMS Open Payments shows $133 in general payments to Dr. Sonderman from 1 company from 2024 to 2024. The largest total came from Abbott Laboratories.
How long has Dr. Mark Thomas Sonderman been practicing?
Dr. Sonderman graduated from medical school in 2019, 7 years ago.
Does Dr. Mark Thomas Sonderman do research?
Dmand AI links 4 publications to Dr. Sonderman, published from 2018 to 2024.
Who does Dr. Mark Thomas Sonderman publish with?
Dr. Sonderman's most frequent co-authors are Quinn S. Wells, MD (2 shared papers), Aaron Weldon Aday, MD (1 shared paper) and Nazem W. Akoum, MD (1 shared paper).
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