Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Ella May Isaacson, CNO

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1801536016

Ella May Isaacson, CNO is a Nurse Practitioner in Boston, Massachusetts. Qualified in 2022, 4 years ago. Practices with Internal Medical Associates-Ebnhc, a 242-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
4
Licensed in
MA
In the registry since
2022
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Practice location Address checks out

1601 Washington St
Boston, MA 02118-1951
Phone: (617) 425-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 10 Gove St, East Boston, MA 02128-1920 — (617) 569-5800
  • 17 Main St, Winthrop, MA 02152-2715 — (617) 569-5800

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence RN2347757 (MA)

Record details

NPI number1801536016
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNO
Sole proprietorNo
NPI enumeratedMarch 29, 2022
Last updated in NPPESApril 18, 2023
Certification dateApril 18, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Internal Medical Associates-Ebnhc — 242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $31 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Colleagues at Internal Medical Associates-Ebnhc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 242 clinicians in the practice; 12 are shown here.

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