Provider Profile
Katherine L. Matsumoto, FNP-BC
Unclaimed ProfileAbout Katherine Matsumoto
Listed in the NPI registry as a nurse practitioner, Katherine L. Matsumoto, FNP-BC practices in Irvine, CA. Katherine is also listed as specializing in nurse practitioner — family and registered nurse. According to Medicare claims data, Katherine cared for 208 Medicare patients across 292 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', and routine electrocardiogram (ecg) using at least 12 leads with interpretation and report. NPI 1003322306 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (949) 417-9820
- Email not available
Practice Locations
2 OSBORN ST STE 180
Irvine, CA 92604
Procedures Most Often Billed to Medicare
292 services · 208 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
12 | Less often than most peers in Nurse Practitioner |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
171 | More often than most peers in Nurse Practitioner |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
109 | More often than most peers in Nurse Practitioner |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nurse practitioners at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other nurse practitioners in Irvine 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Katherine L. Matsumoto?
Katherine L. Matsumoto is a nurse practitioner in Irvine, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Katherine L. Matsumoto's address?
Katherine L. Matsumoto is listed at 2 Osborn St Ste 180, Irvine, CA 92604. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Katherine L. Matsumoto?
The number on file is (949) 417-9820. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Katherine L. Matsumoto's NPI number?
Katherine L. Matsumoto's National Provider Identifier is 1003322306. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Katherine L. Matsumoto train?
Katherine L. Matsumoto attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Katherine L. Matsumoto been practicing?
Katherine L. Matsumoto has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What procedures does Katherine L. Matsumoto perform?
According to Medicare billing data, Katherine L. Matsumoto provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Katherine L. Matsumoto confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Katherine L. Matsumoto. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.