Katherine Amanda Ko, ARNP
Psychiatric/Mental Health Nurse Practitioner · Bellevue, WA
Katherine Amanda Ko, ARNP is a psychiatric/mental health nurse practitioner with a practice address in Bellevue, Washington, and NPI 1891927000, issued on Aug 20, 2009. Check the license (Washington AP60213651, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Amanda Ko
- Credential
- ARNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- AP60213651 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2105 112TH Ave NE Ste 201, Bellevue, WA 98004
- Phone
- (425) 968-5948
- Enumerated
- Aug 20, 2009
- Record last updated
- Oct 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (425) 385-0985
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,875 in Washington → Look up another NPI →
Also registered at 2105 112TH Ave NE Ste 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Brittany Rogers, PSYDPsychologist1962878512
- Keenan Smith, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1003519372
- Nancy Wagner, ARNPPsychiatric/Mental Health Nurse Practitioner1326493891
Verify Katherine Amanda Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP60213651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
92 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.
Most prescribed
- Escitalopram Oxalate26 claims
- Bupropion Xl16 claims
- Risperidone13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $688.32
23 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Katherine Amanda Ko among 1,875 psychiatric/mental health nurse practitioner records in Washington
Katherine Amanda Ko, ARNP is one of 1,875 psychiatric/mental health nurse practitioner records with a practice address in Washington. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 16% of them.
- NPI issued2009 · 16% of these records are older, 82% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 48% of these records are
- Record last updated2019 · 28% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatric/Mental Health Nurse Practitioner providers in Washington
There are 1,875 psychiatric/mental health nurse practitioner records in Washington.
All 1,875 in Washington → Every provider in Bellevue → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Rachel Baker, ARNPBellevue, WA 980041851665624
- Patricia Fray, ARNPBellevue, WA 980041881835163
- Faduma Haji Ali, ARNPBellevue, WA 980041073071437
- Arsalan Hamid, ARNPBellevue, WA 980041982164943
- Adaugo Iwuoha, DNP, ARNP, PMHNP-BCBellevue, WA 980041295372373
- Jessica Jajesnica, ARNPBellevue, WA 980041780779827
- Amanveer Kaila, ARNPBellevue, WA 980041982958211
- Timothy McGlasson, ARNPBellevue, WA 980041710151485
Common questions
What is Katherine Amanda Ko, ARNP's NPI number?
Katherine Amanda Ko, ARNP's National Provider Identifier (NPI) is 1891927000, issued on Aug 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Amanda Ko, ARNP located?
The NPPES record lists a practice address at 2105 112TH Ave NE Ste 201, Bellevue, WA, 98004. Phone: (425) 968-5948. Providers update this record themselves, so call before visiting.
How can I verify Katherine Amanda Ko, ARNP's license?
NPPES lists Washington license number AP60213651, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Amanda Ko, ARNP prescribe under Medicare Part D?
In 2024, Katherine Amanda Ko, ARNP had 92 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.