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MARGARET MARY MANNIX PH.D.
NPI 1124276126
Psychologist - Clinical Child & Adolescent in Providence, RI

Active since September 03, 2008PECOS Enrolled
593 EDDY ST, POTTER BASEMENT, PROVIDENCE, RI 02903(401) 444-8368(401) 444-2085 Get Directions Write a Review

NPPES record last updated: August 20, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Margaret Mary Mannix Ph.d. NPPES

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

MARGARET MARY MANNIX PH.D. (NPI 1124276126) is an individual clinical child & adolescent provider in Providence, Rhode Island, licensed in Rhode Island (PS01196) and active in the NPI registry since September 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124276126
Entity TypeIndividualFemale
Primary Taxonomy103TC2200X
Provider Legal NameMARGARET MARY MANNIXCredential: PH.D.
Location Address593 EDDY ST, POTTER BASEMENTProvidence, RI 02903-4923
Mailing Address593 Eddy St, Apc 978Providence, RI 02903-4923 · (401) 444-4318
Phone(401) 444-8368
Fax(401) 444-2085
Sole ProprietorNo
Enumeration DateSeptember 3, 2008
Last NPPES UpdateAugust 20, 2010
✔ NPI 1124276126 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · Clinical Child & AdolescentBehavioral Health & Social Service Providers
Taxonomy Code103TC2200X
License✔ Licensed in RI · PS01196
Definition
A psychologist who develops and applies scientific knowledge to the delivery of psychological services to infants, toddlers, children and adolescents within their social context. Of particular importance to the specialty of clinical child psychology is an understanding of the basic psychological needs of children and adolescents, and how the family and other social contexts influence the socio-emotional adjustment, cognitive development, behavioral adaptation and health status of children and adolescents.
593 EDDY ST, Providence, RI 02903
Open in Google Maps ↗

Other Identifiers 1

OtherPS01196RI · Professional License

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Margaret Mary Mannix Ph.d. 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

2

Medicare enrollment records show Margaret Mannix reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lifespan Physician Group, Inc.
Same address
Psychiatry
593 EDDY STREET
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 315 clinicians in this Medicare group
NPI 1548506793 (401) 444-7442
Rhode Island Hospital
Same address
Pediatrics
593 EDDY ST
Providence, RI 02903
  • Reassigned Medicare billing, Rhode Island enrollment
  • 265 clinicians in this Medicare group
NPI 1861420333 (401) 444-6195

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

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.

DR. KEITH-AUSTIN SCARFO D.O.
Anesthesiology
593 EDDY ST, APC 6
PROVIDENCE, RI 02903
Providence County (401) 444-3777
AILEEN HSUEH
Surgery
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-8450
RHODE ISLAND HOSPITAL
General Acute Care Hospital
593 EDDY ST, MAIN 4
PROVIDENCE, RI 02903
Providence County (401) 444-7585
DR. GA HIE NAM M.D.
Pathology (Anatomic Pathology & Clinical Pathology)
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-5057
EUGENIE ATALLAH
Psychiatry & Neurology (Neurology)
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 606-2645
BRET CAULFIELD
Physician Assistant
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-4000
JUNG HO GONG
Student in an Organized Health Care Education/Training Program
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 793-2695
FANNY HUANG MD
Student in an Organized Health Care Education/Training Program
593 EDDY ST
PROVIDENCE, RI 02903
Providence County (401) 444-4741

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 Margaret Mannix's NPI number?

The NPI number for Margaret Mannix is 1124276126. It was assigned to this individual provider in the NPPES registry on September 3, 2008.

Where is Margaret Mannix located?

Margaret Mannix practices at 593 Eddy St Potter Basement, Providence, RI 02903. The listed phone number is (401) 444-8368.

What is Margaret Mannix's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical Child & Adolescent, with taxonomy code 103TC2200X.

Is Margaret Mannix enrolled in Medicare?

Yes. Margaret Mannix is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Margaret Mannix's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Mannix reassigns Medicare benefits to 2 organizations: Lifespan Physician Group, Inc. (Providence, RI) and Rhode Island Hospital (Providence, RI). 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 Margaret Mannix'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 Margaret Mannix was last updated on August 20, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.