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SINEAD MONTGOMERY SINNOTT PHD
NPI 1336848969
Psychologist - Clinical in Boston, MA

Active since March 02, 2023PECOS Enrolled

NPPES record last updated: May 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 28, 2026, Mar 2, 2023 (2 updates tracked since 2023).

About Sinead Montgomery Sinnott Phd NPPES

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

SINEAD MONTGOMERY SINNOTT PHD (NPI 1336848969) is an individual clinical provider in Boston, Massachusetts, licensed in Massachusetts (PSY10002074) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1336848969
Entity TypeIndividualFemale
Primary Taxonomy103TC0700X
Provider Legal NameSINEAD MONTGOMERY SINNOTTCredential: PHD
Location Address55 FRUIT STBoston, MA 02114-2696
Mailing Address55 Fruit StBoston, MA 02114-2621 · (617) 833-8362
Phone(617) 855-3467
Sole ProprietorNo
Medical School CMSOtherGraduated 2024
Enumeration DateMarch 2, 2023
Last NPPES UpdateMay 28, 20262 updates tracked since enumeration
NPPES CertifiedMay 28, 2026
✔ NPI 1336848969 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in MA · PSY10002074
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
55 FRUIT ST, Boston, MA 02114
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sinead Montgomery Sinnott Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9032680855
PECOS Enrollment IDI20260602004641
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.

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
$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.

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 Sinead Sinnott's NPI number?

The NPI number for Sinead Sinnott is 1336848969. It was assigned to this individual provider in the NPPES registry on March 2, 2023.

Where is Sinead Sinnott located?

Sinead Sinnott practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 855-3467.

What is Sinead Sinnott's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Sinead Sinnott enrolled in Medicare?

Yes. Sinead Sinnott is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Sinead Sinnott was last updated on May 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.