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ELLA MAY ISAACSON CNO
NPI 1801536016
Nurse Practitioner - Psychiatric/Mental Health in Boston, MA

Active since March 29, 2022PECOS Enrolled
1601 WASHINGTON ST, BOSTON, MA 02118(617) 425-2000 Get Directions Write a Review

NPPES record last updated: April 18, 2023. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 27, 2022, Aug 22, 2022 (2 updates tracked since 2022).

About Ella May Isaacson Cno NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ELLA MAY ISAACSON CNO (NPI 1801536016) is an individual psychiatric/mental health provider in Boston, Massachusetts, licensed in Massachusetts (RN2347757) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1801536016
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameELLA MAY ISAACSONCredential: CNO
Location Address1601 WASHINGTON STBoston, MA 02118-1951
Mailing Address10 Gove StEast Boston, MA 02128-1920 · (617) 569-5800 · Fax (617) 568-4756
Phone(617) 425-2000
Sole ProprietorNo
Enumeration DateMarch 29, 2022
Last NPPES UpdateApril 18, 20232 updates tracked since enumeration
NPPES CertifiedApril 18, 2023
✔ NPI 1801536016 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License✔ Licensed in MA · RN2347757
1601 WASHINGTON ST, Boston, MA 02118
Open in Google Maps ↗

Secondary Practice Locations 2

Location 117 Main StWinthrop, MA 02152-2715 · Phone (617) 569-5800
Location 210 Gove StEast Boston, MA 02128-1920 · Phone (617) 569-5800

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ella May Isaacson Cno is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Ella Isaacson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The General Hospital Corporation
1.8 mi
General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
NPI 1023049236 (617) 726-2000
Massachusetts General Physicians Organization Inc
1.8 mi
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group
NPI 1801874573 (617) 724-0287
Internal Medical Associates-Ebnhc
3.0 mi
Community Health
10 GOVE ST
East Boston, MA 02128
  • Reassigned Medicare billing, Massachusetts enrollment
  • 577 clinicians in this Medicare group
NPI 1558481879 (617) 569-5800
Neighborhealth Corporation
3.0 mi
Community Health
10 GOVE ST
East Boston, MA 02128
  • Reassigned Medicare billing, Massachusetts enrollment
  • Medicare enrollment name: East Boston Neighborhood Health Center Corp
  • 456 clinicians in this Medicare group
NPI 1316994411 (617) 569-5800

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NICAURY VICTORIA SUAZO ORTIZ RN
Registered Nurse
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
CHELSEY CUTTING
Social Worker
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
KAYLA FLYNN CNP
Nurse Practitioner (Psychiatric/Mental Health)
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
SARI R KALIN M.S., R.D., L.D.N.
Nutritionist
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
MILAGROS MARIA AVALO RN
Registered Nurse
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
CATRINA MARIE MURPHY CNP
Nurse Practitioner (Family)
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
ALISON NOONE MSW
Social Worker
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000
AIDA PALENCIA
Registered Nurse (Community Health)
1601 WASHINGTON ST
BOSTON, MA 02118
Suffolk County (617) 425-2000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ella Isaacson's NPI number?

The NPI number for Ella Isaacson is 1801536016. It was assigned to this individual provider in the NPPES registry on March 29, 2022.

Where is Ella Isaacson located?

Ella Isaacson practices at 1601 Washington St, Boston, MA 02118. The listed phone number is (617) 425-2000.

What is Ella Isaacson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Ella Isaacson enrolled in Medicare?

Yes. Ella Isaacson is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ella Isaacson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ella Isaacson reassigns Medicare benefits to 4 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA), Internal Medical Associates-Ebnhc (East Boston, MA) and Neighborhealth Corporation (East Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ella Isaacson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ella Isaacson accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Ella Isaacson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ella Isaacson was last updated on April 18, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.