Stephen Matsuoka

  • Tacoma, WA
  • Emergency medicine physician
NPI1568043032PAC ID6507302601
Medicare services, 2024
161
Medicare patients, 2024
109
Part D claims, 2024
108
Hospital affiliations
1
Medical groups
2
Practice address
1717 South J Street, Tacoma, WA 98405
Practice phone
Call (253) 627-4101
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Joseph Medical Center

Hospital · Tacoma, Washington

See all 3 affiliations

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Stephen Matsuoka is an emergency medicine physician in Tacoma, Washington

Stephen Matsuoka practices at St. Joseph Medical Center in Tacoma, Washington, part of CommonSpirit Health.

Stephen Matsuoka's NPI, 1568043032, was assigned on April 16, 2021. Stephen Matsuoka holds Washington license MD61506989.

NPI and contact details
Medicare PAC ID
6507302601
NPI enumeration date
April 16, 2021
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(253) 627-4101
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
31
Medical school graduation
2021

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Stephen Matsuoka practices at St. Joseph Medical Center in Tacoma, Washington

Stephen Matsuoka's primary practice is St. Joseph Medical Center, at 1717 South J Street, Tacoma, WA 98405 in Pierce County. The practice phone is (253) 627-4101.

Source: Dmand AI Affiliation Data

Stephen Matsuoka is affiliated with 1 site of care and 2 medical groups

Stephen Matsuoka's primary practice is St. Joseph Medical Center in Tacoma, Washington, part of CommonSpirit Health. The medical group on file is Northwest Emergency Physicians. Dmand AI also links Stephen Matsuoka to 1 more medical group, named with a free account.

See all 3 affiliations for Stephen Matsuoka

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Stephen Matsuoka's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Stephen Matsuoka practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Joseph Medical CenterAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Stephen Matsuoka is one of 1,408 emergency medicine physicians in Washington

Emergency medicine is Stephen Matsuoka's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Stephen Matsuoka is licensed in Washington.

Specialties and state licenses

  • Emergency medicine, WashingtonPrimaryLicense MD61506989 · taxonomy 207P00000X

Emergency medicine physicians near Stephen Matsuoka

Counts of emergency medicine physicians 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

Stephen Matsuoka billed Medicare for 161 services in 2024

CMS data shows 161 Medicare services from Stephen Matsuoka across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $14,148 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024161
Medicare patients109
Paid by Medicare$14,148
Procedure codes4

Stephen Matsuoka's Medicare services by type, 2024

  1. Office and hospital visits104
  2. Tests and treatments57

Stephen Matsuoka compared with the Washington median for emergency medicine physicians, 2024

  • Stephen Matsuoka
  • Washington median
Medicare services
161vs 26840% below
Medicare patients
109vs 22351% below

Medians across 1,440 emergency medicine physicians in Washington with Dmand AI profiles that report each measure.

Stephen Matsuoka'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Stephen Matsuoka treated 109 Medicare patients in 2024, average age 72

CMS counts 109 Medicare patients who saw Stephen Matsuoka in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Stephen Matsuoka's median patient age at 54, with 55% women.

Medicare patients, 2024109
Average age72
Average risk score1.83
Also on Medicaid32%

Stephen Matsuoka's Medicare patients by age, 2024

Stephen Matsuoka's Medicare patients by sex, 2024

  • Women5651%
  • Men5349%

Chronic conditions among Stephen Matsuoka's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis56%
  4. Diabetes48%
  5. Ischemic heart disease43%
  6. Heart failure39%
  7. Chronic kidney disease38%
  8. Mood disorders37%

Share of Medicare patients with each condition. A patient can have several.

Stephen Matsuoka's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 54

Patient panel by sex, all payers

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Stephen Matsuoka wrote 108 Medicare Part D claims in 2024

In 2024, Stephen Matsuoka wrote 108 Medicare Part D claims for 67 patients. 84% of them were for generic drugs.

Part D claims, 2024108
Part D patients67

Stephen Matsuoka's Part D claims by kind of drug, 2024

  • Generic91 claims84%
  • Brand-name and other17 claims16%

Drug classes CMS tracks in Stephen Matsuoka's Part D claims, 2024

  • Antibiotics30%32 of 108 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Stephen Matsuoka takes part in Medicare

Stephen Matsuoka 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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Sources for Stephen Matsuoka's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Stephen Matsuoka

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Stephen Matsuoka's NPI number?

Stephen Matsuoka's NPI number is 1568043032. It was assigned on April 16, 2021, and it is active in the NPI Registry.

What does Stephen Matsuoka specialize in?

Stephen Matsuoka is an emergency medicine physician in Tacoma, Washington. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Stephen Matsuoka practice?

Stephen Matsuoka practices at 1717 South J Street, Tacoma, WA 98405. Stephen Matsuoka's primary practice is St. Joseph Medical Center in Tacoma, Washington, part of CommonSpirit Health. Dmand AI also links Stephen Matsuoka to 1 medical group.

What is Stephen Matsuoka's office phone number?

The practice phone on file for Stephen Matsuoka is (253) 627-4101.

What is Stephen Matsuoka's medical license number?

Stephen Matsuoka holds Washington license MD61506989.

Which hospitals is Stephen Matsuoka affiliated with?

Stephen Matsuoka practices at St. Joseph Medical Center in Tacoma, Washington.

What medical group is Stephen Matsuoka part of?

Stephen Matsuoka is linked to Northwest Emergency Physicians. Dmand AI links Stephen Matsuoka to 1 more medical group.

Does Stephen Matsuoka accept Medicare?

Yes. CMS data shows Stephen Matsuoka billed Medicare for 161 services in 2024, and Stephen Matsuoka accepts Medicare assignment.

How many Medicare patients does Stephen Matsuoka see?

CMS counts 109 Medicare patients who saw Stephen Matsuoka in 2024, with an average age of 72.

What services does Stephen Matsuoka bill to Medicare?

In 2024, Stephen Matsuoka's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).

How long has Stephen Matsuoka been practicing?

Stephen Matsuoka graduated from medical school in 2021, 5 years ago.

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