Dr. Katherine Coburn Bonsell, DO
- Medicare services, 2023
- 93
- Part D claims, 2024
- 36
- Industry payments
- $993
- Medical group
- 1
- State license
- 1
- Practice address
- 12040 Ne 128th St, Kirkland, WA 98034
- Practice phone
- Call (425) 899-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
EvergreenHealth Medical Center Kirkland
Kirkland, Washington
Find Dr. Bonsell'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. Katherine Coburn Bonsell is a neurologist in Kirkland, Washington
Dr. Bonsell practices at EvergreenHealth Medical Center Kirkland in Kirkland, Washington.
Dr. Bonsell's NPI, 1306109525, was assigned on June 21, 2012. Dr. Bonsell holds Arizona license R2128.
- NPI
- 1306109525NPI Registry (opens in a new tab)
- NPI enumeration date
- June 21, 2012
- NPI status
- Active
- Practice phone
- (425) 899-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Katherine Coburn Bonsell practices at EvergreenHealth Medical Center Kirkland in Kirkland, Washington
Dr. Bonsell's primary practice is EvergreenHealth Medical Center Kirkland, at 12040 Ne 128th St, Kirkland, WA 98034 in King County. The practice phone is (425) 899-1000.
- EvergreenHealth Medical Center Kirkland12040 Ne 128th St, Kirkland, WA 98034 · King CountyPhone(425) 899-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Katherine Coburn Bonsell is affiliated with 1 site of care and 1 medical group
Dr. Bonsell's primary practice is EvergreenHealth Medical Center Kirkland in Kirkland, Washington. The medical group on file is Booth Gardner Parkinson's Care Center.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Katherine Coburn Bonsell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bonsell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| EvergreenHealth Medical Center Kirkland | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katherine Coburn Bonsell is one of 417 neurologists in Washington
Neurology is Dr. Bonsell's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Bonsell is licensed in Arizona.
Specialties and state licenses
- Neurology, ArizonaPrimary
Neurologists near Dr. Bonsell
Counts of neurologists 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. Katherine Coburn Bonsell billed Medicare for 93 services in 2023
CMS data shows 93 Medicare services from Dr. Bonsell across 3 procedure codes in 2023. Medicare paid $4,925 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Bonsell's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1462023: 3874%
- Other services
- 2022: 1222023: 3670%
- Tests and treatments
- 2022: 792023: 1976%
Dr. Bonsell compared with the Washington median for neurologists, 2023
- Dr. Bonsell
- Washington median
- Medicare services
- 93vs 29268% below
- Part D claims
- 25vs 40894% below
Medians across 403 neurologists in Washington with Dmand AI profiles that report each measure.
Dr. Bonsell'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Bonsell and other neurologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Katherine Coburn Bonsell's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Bonsell's median patient age at 66, with 66% women.
Dr. Bonsell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women66%
- Men34%
Source: Dmand AI Patient Panel Data
Dr. Katherine Coburn Bonsell wrote 36 Medicare Part D claims in 2024
In 2024, Dr. Bonsell wrote 36 Medicare Part D claims. CMS names the drug for 25 of them, across 1 drug with 11 or more claims each, at $157,123 in total drug cost. In 2023, CMS named 222 claims across 8 drugs.
Dr. Bonsell'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: 2222024: 2589%
Drugs named by CMS: 1 in 2024, 8 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. Katherine Coburn Bonsell received $993 in industry payments from 2016 to 2023
CMS Open Payments shows 43 general payments to Dr. Bonsell from 18 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $164.
General payments to Dr. Bonsell by program year, 2016 to 2023
Companies that paid Dr. Bonsell the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Katherine Coburn Bonsell'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Katherine Coburn Bonsell
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. Katherine Coburn Bonsell's NPI number?
Dr. Katherine Coburn Bonsell's NPI number is 1306109525. It was assigned on June 21, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Katherine Coburn Bonsell?
Dr. Katherine Coburn Bonsell is a neurologist in Kirkland, Washington. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Katherine Coburn Bonsell practice?
Dr. Bonsell practices at 12040 Ne 128th St, Kirkland, WA 98034. Dr. Bonsell's primary practice is EvergreenHealth Medical Center Kirkland in Kirkland, Washington.
What is Dr. Katherine Coburn Bonsell's office phone number?
The practice phone on file for Dr. Bonsell is (425) 899-1000.
What is Dr. Katherine Coburn Bonsell's medical license number?
Dr. Bonsell holds Arizona license R2128.
What medical group is Dr. Katherine Coburn Bonsell part of?
Dr. Bonsell is linked to Booth Gardner Parkinson's Care Center.
Does Dr. Katherine Coburn Bonsell accept Medicare?
Yes. CMS data shows Dr. Bonsell billed Medicare for 93 services in 2023.
What services does Dr. Katherine Coburn Bonsell bill to Medicare?
In 2023, Dr. Bonsell's most billed Medicare services were office visit, established patient (99215), medicare service (G2212) and nerve and brain test (95886).
What drugs does Dr. Katherine Coburn Bonsell prescribe most?
In 2024 Medicare Part D data, Dr. Bonsell's most prescribed drugs by claims were Privigen.
Has Dr. Katherine Coburn Bonsell received payments from drug or device companies?
CMS Open Payments shows $993 in general payments to Dr. Bonsell from 18 companies from 2016 to 2023. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. Katherine Coburn Bonsell been practicing?
Dr. Bonsell graduated from medical school in 2012, 14 years ago.
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