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Dr. Matthew Alexander Johnston, MD
NPI1003062290PAC ID7719011402
- Medicare services, 2024
- 77
- Medicare patients, 2024
- 92
- Part D claims, 2018
- 17
- Clinical trials
- 10
- Hospital affiliations
- 1
- Practice address
- 751 NE Blakely Dr, Issaquah, WA 98029
- Practice phone
- Call (425) 313-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Johnston's professional email, personal email and mobile number
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Dr. Matthew Alexander Johnston is a general surgeon in Issaquah, Washington
Dr. Johnston practices at Swedish Issaquah Campus in Issaquah, Washington, part of Providence Health & Services.
Dr. Johnston's NPI, 1003062290, was assigned on August 7, 2008. Dr. Johnston graduated from University of Kansas School of Med (KC/Wich/Sal) in 2005. Dr. Johnston holds Washington license MD60144427.
NPI and contact details
- NPI
- 1003062290NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7719011402
- NPI enumeration date
- August 7, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (425) 313-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Alexander Johnston practices at Swedish Issaquah Campus in Issaquah, Washington
Dr. Johnston's primary practice is Swedish Issaquah Campus, at 751 NE Blakely Dr, Issaquah, WA 98029 in King County. The practice phone is (425) 313-4000.
- Swedish Issaquah Campus751 NE Blakely Dr, Issaquah, WA 98029 · King CountyPhone(425) 313-4000
Source: Dmand AI Affiliation Data
Dr. Matthew Alexander Johnston is affiliated with 2 sites of care and 3 medical groups
Dr. Johnston's primary practice is Swedish Issaquah Campus in Issaquah, Washington, part of Providence Health & Services. The medical group on file is Swedish Health Services. Dmand AI also links Dr. Johnston to 2 more medical groups and 1 hospital outpatient department, each named with a free account.
Swedish Health Services2 medical groupsNames with a free account1 hospital outpatient departmentName with a free account
See all 5 affiliations for Dr. JohnstonSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew Alexander Johnston's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Johnston practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Swedish Issaquah Campus | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Alexander Johnston is one of 642 general surgeons in Washington
Surgery is Dr. Johnston's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Johnston is licensed in Washington.
Specialties and state licenses
- Surgery, WashingtonPrimary
General surgeons near Dr. Johnston
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
642general surgeons in Washington12general surgeons in Issaquah9general surgeons at Swedish Issaquah Campus
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Alexander Johnston billed Medicare for 77 services in 2024
CMS data shows 77 Medicare services from Dr. Johnston across 4 procedure codes in 2024, for 92 Medicare patients. Medicare paid $8,007 for them.
Medicare services, 202477
Medicare patients92
Paid by Medicare$8,007
Procedure codes4
Dr. Johnston's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 422024: 7783%
Where Dr. Johnston's Medicare services took place, 2024
- In an office6686%
- In a facility1114%
Dr. Johnston compared with the Washington median for general surgeons, 2024
- Dr. Johnston
- Washington median
- Medicare services
- 77vs 9216% below
- Medicare patients
- 92vs 88Close to median
- Part D claims
- 17vs 3348% below
Medians across 610 general surgeons in Washington with Dmand AI profiles that report each measure.
Dr. Johnston'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. Johnston and other general surgeons in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Matthew Alexander Johnston treated 92 Medicare patients in 2024, average age 73
CMS counts 92 Medicare patients who saw Dr. Johnston in 2024. The largest group is 65 to 74, with 46 patients. 68% of them have high cholesterol, and 63% have high blood pressure. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Johnston's median patient age at 69, with 48% women.
Medicare patients, 202492
Average age73
Average risk score1.14
Dr. Johnston's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Johnston's Medicare patients by sex, 2024
- Women4549%
- Men4751%
Chronic conditions among Dr. Johnston's Medicare patients, 2024
- High cholesterol68%
- High blood pressure63%
- Arthritis48%
- Mood disorders32%
- Depression30%
- Ischemic heart disease28%
- Anxiety25%
- Heart failure25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Johnston's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women48%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Matthew Alexander Johnston wrote 17 Medicare Part D claims in 2018
In 2018, Dr. Johnston wrote 17 Medicare Part D claims. They cover 1 drug, with $132 in total drug cost. In 2017, CMS named 18 claims across 1 drug.
Part D claims, 201817
Drugs named by CMS1
Total drug cost$132
Dr. Johnston's most prescribed drugs by claims, 2018
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, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 182018: 176%
Drugs named by CMS: 1 in 2018, 1 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Matthew Alexander Johnston ranks in the 89th percentile for hernia repair - groin (open) in Medicare
Dr. Johnston accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 11 procedures of hernia repair - groin (open) by Dr. Johnston, more than 89% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Johnston ranks in Medicare procedure volume
- Hernia repair - groin (open)
- 89th percentile11 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 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. Matthew Alexander Johnston has worked on 10 clinical trials
Dmand AI links Dr. Johnston to 10 clinical trials, 4 of them phase 2 studies. 9 are still active or recruiting. Conditions studied include Adenocarcinoma of Lung, Biliary Atresia and Low Back Pain.
Clinical trials with Dr. Johnston by phase
- NonePhase 1: no trials
- 4Phase 2: 4 trials
- 1Phase 2/3: 1 trial
- NonePhase 3: no trials
- NonePhase 4: no trials
Trials with no phase (devices, behavioral studies) are left out.
Conditions in Dr. Johnston's trials
- Adenocarcinoma of Lung
- Biliary Atresia
- Low Back Pain
- Malocclusion
- Muscular Atrophy
Investigators on the most trials with Dr. Johnston
- Kader Tawfiq Abdelerahman, MD10 shared trials
- Randa Abdelmasih, MD10 shared trials
- Marjorie E. Affel, MD10 shared trials
Recent clinical trials with Dr. Johnston
Adenocarcinoma of LungAdenocarcinoma
Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage
Dr. Matthew Alexander Johnston received $68,120 in industry payments from 2016 to 2023
CMS Open Payments shows 103 general payments to Dr. Johnston from 3 drug and device companies from 2016 to 2023. Education make up the largest share, 82% of the total. Intuitive Surgical, Inc. paid the most, $67,845.
General payments to Dr. Johnston by program year, 2016 to 2023
General payments to Dr. Johnston by kind, 2016 to 2023
$68.1Kin total
- Education$56,11482%
- Travel and lodging$6,72910%
- Food and beverage$5,2598%
- Gifts$180%
Companies that paid Dr. Johnston the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Alexander Johnston graduated from University of Kansas School of Med (KC/Wich/Sal)
Dr. Johnston graduated from University of Kansas School of Med (KC/Wich/Sal) in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Alexander Johnston'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) |
| 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) |
| Clinical trials and co-investigators | ClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Matthew Alexander Johnston
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. Matthew Alexander Johnston's NPI number?
Dr. Matthew Alexander Johnston's NPI number is 1003062290. It was assigned on August 7, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Alexander Johnston?
Dr. Matthew Alexander Johnston is a general surgeon in Issaquah, Washington. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Matthew Alexander Johnston practice?
Dr. Johnston practices at 751 NE Blakely Dr, Issaquah, WA 98029. Dr. Johnston's primary practice is Swedish Issaquah Campus in Issaquah, Washington, part of Providence Health & Services. Dmand AI also links Dr. Johnston to 2 medical groups and 1 hospital outpatient department.
What is Dr. Matthew Alexander Johnston's office phone number?
The practice phone on file for Dr. Johnston is (425) 313-4000.
What is Dr. Matthew Alexander Johnston's medical license number?
Dr. Johnston holds Washington license MD60144427.
Which hospitals is Dr. Matthew Alexander Johnston affiliated with?
Dr. Johnston practices at Swedish Issaquah Campus in Issaquah, Washington.
What medical group is Dr. Matthew Alexander Johnston part of?
Dr. Johnston is linked to Swedish Health Services. Dmand AI links Dr. Johnston to 2 more medical groups.
Does Dr. Matthew Alexander Johnston accept Medicare?
Yes. CMS data shows Dr. Johnston billed Medicare for 77 services in 2024, and Dr. Johnston accepts Medicare assignment.
How many Medicare patients does Dr. Matthew Alexander Johnston see?
CMS counts 92 Medicare patients who saw Dr. Johnston in 2024, with an average age of 73.
What services does Dr. Matthew Alexander Johnston bill to Medicare?
In 2024, Dr. Johnston's most billed Medicare services were office visit, new patient (99204), office visit, established patient (99214) and office visit, new patient (99203).
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Where did Dr. Matthew Alexander Johnston go to medical school?
Dr. Johnston graduated from University of Kansas School of Med (KC/Wich/Sal) in 2005.
What drugs does Dr. Matthew Alexander Johnston prescribe most?
In 2018 Medicare Part D data, Dr. Johnston's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Matthew Alexander Johnston received payments from drug or device companies?
CMS Open Payments shows $68,120 in general payments to Dr. Johnston from 3 companies from 2016 to 2023. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Matthew Alexander Johnston been practicing?
Dr. Johnston graduated from medical school in 2005, 21 years ago.
Does Dr. Matthew Alexander Johnston do research?
Dr. Johnston has worked on 10 clinical trials.
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