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ELLIOTT REUBEN EGGAN
NPI 1598225781
Psychiatry & Neurology - Psychiatry in Boston, MA

Active since March 22, 2019PECOS Enrolled
75.52/100
CMS Quality Rating

NPPES record last updated: May 12, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: May 12, 2025, Mar 22, 2019 (2 updates tracked since 2019).

About Elliott Reuben Eggan NPPES

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

ELLIOTT REUBEN EGGAN (NPI 1598225781) is an individual psychiatry provider in Boston, Massachusetts, licensed in Massachusetts (290268) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1598225781
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameELLIOTT REUBEN EGGAN
Location Address55 FRUIT STBoston, MA 02114-2621
Mailing Address15 Parkman St, Wacc 812Boston, MA 02114
Phone(571) 201-4107
Sole ProprietorNo
Enumeration DateMarch 22, 2019
Last NPPES UpdateMay 12, 20252 updates tracked since enumeration
NPPES CertifiedMay 12, 2025
✔ NPI 1598225781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in MA · 290268
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
55 FRUIT ST, Boston, MA 02114
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Elliott Reuben Eggan 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 Reassignment

Medicare enrollment records show Elliott Eggan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Mclean Hospital Corporation
6.6 mi
Psychiatry
115 MILL ST
Belmont, MA 02478
  • Reassigned Medicare billing, Massachusetts enrollment
  • 422 clinicians in this Medicare group
NPI 1114979580 (617) 855-2183

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

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
150 services39 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02114 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
$189.86 typical visit price
range $63.72 – $189.86
Typical copayment $47.46 (range $15.93 – $47.46)
Most-billed visit code 99205
Established Patient
$78.84 typical visit price
range $21.07 – $155.29
Typical copayment $19.71 (range $5.26 – $38.82)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75.52/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.14
Promoting Interoperability100
Improvement Activities40
Cost37.61

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.

STUTI GIRISH SHROFF MD, MBBS
Pathology (Anatomic Pathology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2971
NANCY WANG M.D.
Internal Medicine (Hematology & Oncology)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (017) 724-4000
DR. DUSAN HANIDZIAR M.D., PH.D.
Anesthesiology
55 FRUIT ST, GRAY-BIGELOW 444
BOSTON, MA 02114
Suffolk County (617) 726-3030
JOHN JOSEPH DANKO DO
Physical Medicine & Rehabilitation
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 726-2000
DR. MICHAEL ANDREW LOBRITZ M.D, PH.D.
Internal Medicine (Infectious Disease)
55 FRUIT ST, DIVISION OF INFECTIOUS DISEASE, GRJ-504
BOSTON, MA 02114
Suffolk County (617) 724-9248
MS. KELLY ELISHA TRECARTIN NP
Nurse Practitioner (Acute Care)
55 FRUIT ST, BIGALOW 852 F
BOSTON, MA 02114
Suffolk County (617) 726-7400
JAMIE MARIE ALLEN NP
Nurse Practitioner
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 724-4410
DR. DHAVAL SANJEEV KOLTE M.B.B.S., PH.D.
Internal Medicine (Cardiovascular Disease)
55 FRUIT ST
BOSTON, MA 02114
Suffolk County (617) 643-3238

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 Elliott Eggan's NPI number?

The NPI number for Elliott Eggan is 1598225781. It was assigned to this individual provider in the NPPES registry on March 22, 2019.

Where is Elliott Eggan located?

Elliott Eggan practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (571) 201-4107.

What is Elliott Eggan's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Elliott Eggan enrolled in Medicare?

Yes. Elliott Eggan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Elliott Eggan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Elliott Eggan reassigns Medicare benefits to The Mclean Hospital Corporation (Belmont, MA). The 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 Elliott Eggan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Elliott Eggan was last updated on May 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.