NPPES file of Aug 9, 2026

Ella May Isaacson, CNO

Psychiatric/Mental Health Nurse Practitioner · Boston, MA

Ella May Isaacson, CNO is a psychiatric/mental health nurse practitioner with a practice address in Boston, Massachusetts, and NPI 1801536016, issued on Mar 29, 2022. Check the license (Massachusetts RN2347757, 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
1801536016
Name
Ella May Isaacson
Credential
CNO
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
RN2347757 MA
Self-reported in NPPES; status is on the state search
Practice location
1601 Washington St, Boston, MA 02118
Phone
(617) 425-2000
Enumerated
Mar 29, 2022
Record last updated
Apr 18, 2023
Medicare enrollment
Enrolled (PECOS I20221026000763); accepts Medicare assignment
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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Also registered at 1601 Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daramis AbreuRegistered Nurse1699093567
  2. Carolina Abuelo, M.D.Internal Medicine Physician1306042528
  3. Amita Agarwal, DDSDentist1184084683
  4. Laura Allen, LICSWSocial Worker1740446996
  5. Doris Alleyne, SWSocial Worker1386918845
  6. Gulnora Aminova, PH.D.Mental Health Counselor1518412964

Verify Ella May Isaacson 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 RN2347757
    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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84% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

142 Medicare Part D claims for 23 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Ella Isaacson142
  2. Specialty average906

Most prescribed

  1. Aripiprazole18 claims
  2. Quetiapine Fumarate11 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. Internal Medical Associates-EbnhcEast Boston, MA

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

Ella May Isaacson among 2,169 psychiatric/mental health nurse practitioner records in Massachusetts

Ella May Isaacson, CNO is one of 2,169 psychiatric/mental health nurse practitioner records with a practice address in Massachusetts. 74% 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 59% of them.

  • NPI issued2022 · 59% of these records are older, 33% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2022 · median 2021 among the 1,309 with a school on file
  • Record last updated2023 · 23% 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 Massachusetts 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 Massachusetts

There are 2,169 psychiatric/mental health nurse practitioner records in Massachusetts.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Adeola Adejinmi, R.N.Boston, MA 021181104087998
  2. Judith Austin, PMHNPBoston, MA 021181477837409
  3. Vera BrownBoston, MA 021181851699508
  4. Nadia Carter, NPBoston, MA 021181962794370
  5. Shalisha Crouch, NPBoston, MA 021181487898904
  6. Maura Davis, NPBoston, MA 021181184843088
  7. Christy Delillo, NPBoston, MA 021181033476437
  8. Erline Destra, NPBoston, MA 021181619120490

Common questions

What is Ella May Isaacson, CNO's NPI number?

Ella May Isaacson, CNO's National Provider Identifier (NPI) is 1801536016, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Ella May Isaacson, CNO located?

The NPPES record lists a practice address at 1601 Washington St, Boston, MA, 02118. Phone: (617) 425-2000. Providers update this record themselves, so call before visiting.

How can I verify Ella May Isaacson, CNO's license?

NPPES lists Massachusetts license number RN2347757, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Ella May Isaacson, CNO prescribe under Medicare Part D?

In 2024, Ella May Isaacson, CNO had 142 Medicare Part D claims for 23 beneficiaries; 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.