NPPES file of Aug 9, 2026

April Tak Lun Ko, PMHNP

Child & Adolescent Psychiatric/Mental Health Registered Nurse · Boston, MA

April Tak Lun Ko, PMHNP is a child & adolescent psychiatric/mental health registered nurse with a practice address in Boston, Massachusetts, and NPI 1891419461, issued on Sep 28, 2022. Check the license (Massachusetts 2302161, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891419461
Name
April Tak Lun Ko
Credential
PMHNP
Primary taxonomy
Child & Adolescent Psychiatric/Mental Health Registered Nurse 163WP0807X
License numbers
2302161 MA
RN2302161 MA
Self-reported in NPPES; status is on the state search
Practice location
191 W 8TH St Apt 6, Boston, MA 02127
Phone
(617) 312-1052
Enumerated
Sep 28, 2022
Record last updated
Feb 22, 2023
Medicare enrollment
Enrolled (PECOS I20230418000358); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify April Tak Lun Ko in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 2302161
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Massachusetts license search

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77% fewer Medicare Part D claims than the average child & adolescent psychiatric/mental health registered nurse in 2024

207 Medicare Part D claims for 47 beneficiaries, against an average of 917 among the 24 providers of this specialty who prescribed in Part D.

  1. April Tak Ko207
  2. Specialty average917

Most prescribed

  1. Mirtazapine16 claims
  2. Clonazepam14 claims
  3. Duloxetine Hcl14 claims
  4. Lamotrigine13 claims
  5. Sertraline Hcl12 claims
  6. Bupropion Xl11 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.

Bills Medicare through one group practice

  1. Atrius Health IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

April Tak Lun Ko among 46 child & adolescent psychiatric/mental health registered nurse records in Massachusetts

April Tak Lun Ko, PMHNP is one of 46 child & adolescent psychiatric/mental health registered nurse records with a practice address in Massachusetts. 17% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 61% of them.

  • NPI issued2022 · 61% of these records are older, 28% newer
  • In a Medicare fileYes · 17% of these records are
  • In the CMS Doctors and Clinicians fileYes · 13% of these records are
  • Record last updated2023 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163WP0807X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Child & Adolescent Psychiatric/Mental Health Registered Nurse providers in Massachusetts

There are 46 child & adolescent psychiatric/mental health registered nurse records in Massachusetts.

The 8 child & adolescent psychiatric/mental health registered nurse records with the nearest ZIP codes

  1. Kameko GregoryBoston, MA 021241598490401
  2. Louisa Akukwe, RNAllston, MA 021341336399237
  3. Joanne Michalek, APRN-BCBoston, MA 021151760603419
  4. Taylor TravagliniBoston, MA 021151790634137
  5. Philip Amisano, R.N. B.S.N. C.M.T.Somerville, MA 021441407983604
  6. Peter GaliwangoMedford, MA 021551710728050
  7. Nathalie Winston, RNWalpole, MA 020811003686031
  8. Sharon Chatterton, APRN, BCNorwood, MA 020621336110485

Common questions

What is April Tak Lun Ko, PMHNP's NPI number?

April Tak Lun Ko, PMHNP's National Provider Identifier (NPI) is 1891419461, issued on Sep 28, 2022. An NPI identifies a provider in billing; it is not a license.

Where is April Tak Lun Ko, PMHNP located?

The NPPES record lists a practice address at 191 W 8TH St Apt 6, Boston, MA, 02127. Phone: (617) 312-1052. Providers update this record themselves, so call before visiting.

How can I verify April Tak Lun Ko, PMHNP's license?

NPPES lists Massachusetts license number 2302161, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does April Tak Lun Ko, PMHNP prescribe under Medicare Part D?

In 2024, April Tak Lun Ko, PMHNP had 207 Medicare Part D claims for 47 beneficiaries; the average among child & adolescent psychiatric/mental health registered nurse prescribers was 917. 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.