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DR. RUTA MARGARETA NONACS MD PHD
NPI 1912085101
Psychiatry & Neurology - Psychiatry in Boston, MA

Active since November 02, 2006PECOS Enrolled
185 CAMBRIDGE ST STE 2200, BOSTON, MA 02114(617) 724-0811 Get Directions Write a Review

NPPES record last updated: September 2, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 2, 2026, Mar 18, 2025 (2 updates tracked since 2025).

About Dr. Ruta Margareta Nonacs Md Phd NPPES

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

DR. RUTA MARGARETA NONACS MD PHD (NPI 1912085101) is an individual psychiatry provider in Boston, Massachusetts, licensed in Massachusetts (153022) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Burlington.

NPPES Registry Identity

NPI1912085101
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. RUTA MARGARETA NONACSCredential: MD PHD
Location Address185 CAMBRIDGE ST STE 2200Boston, MA 02114-2790
Mailing Address185 Cambridge St Ste 2200Boston, MA 02114-2790 · (617) 724-0811
Phone(617) 724-0811
Sole ProprietorNo
Enumeration DateNovember 2, 2006
Last NPPES UpdateSeptember 2, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 2, 2026
✔ NPI 1912085101 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in MA · 153022✔ Licensed in VT · 042.0018835
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.
185 CAMBRIDGE ST STE 2200, Boston, MA 02114
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Secondary Practice Location 1

Location 1111 Colchester AveBurlington, VT 05401-1473 · Phone (802) 847-0000

Other Identifiers 3

Medicaid3175561MA
OtherJ17679MA · Bcbs Ma
Other767495MA · Tufts Health Plan

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)

Dr. Ruta Margareta Nonacs Md Phd 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

3

Medicare enrollment records show Ruta Nonacs reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The General Hospital Corporation
0.2 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
0.2 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
University Of Vermont Medical Center Inc
181 mi
Internal Medicine
111 COLCHESTER AVE
Burlington, VT 05401
  • Reassigned Medicare billing, Vermont enrollment
  • 1,643 clinicians in this Medicare group
NPI 1659309615 (802) 847-0000

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 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.

Other Providers at the Same Location NPPES 3

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

REBECCA JEANNE LEVAL MD, MPH
Psychiatry & Neurology (Psychiatry)
185 CAMBRIDGE ST STE 2200
BOSTON, MA 02114
Suffolk County (617) 724-7792
GABRIELLA FERRIS-HAMLETT
Psychologist (Cognitive & Behavioral)
185 CAMBRIDGE ST STE 2200
BOSTON, MA 02114
Suffolk County (650) 714-1794
MS. JENNIFER RAGAN PHD
Psychologist (Clinical)
185 CAMBRIDGE ST STE 2200
BOSTON, MA 02114
Suffolk County (617) 643-3074

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 Ruta Nonacs's NPI number?

The NPI number for Ruta Nonacs is 1912085101. It was assigned to this individual provider in the NPPES registry on November 2, 2006.

Where is Ruta Nonacs located?

Ruta Nonacs practices at 185 Cambridge St Ste 2200, Boston, MA 02114. The listed phone number is (617) 724-0811.

What is Ruta Nonacs's specialty?

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

Is Ruta Nonacs enrolled in Medicare?

Yes. Ruta Nonacs is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Ruta Nonacs's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ruta Nonacs reassigns Medicare benefits to 3 organizations: The General Hospital Corporation (Boston, MA), Massachusetts General Physicians Organization Inc (Boston, MA) and University Of Vermont Medical Center Inc (Burlington, VT). 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 Ruta Nonacs's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ruta Nonacs accept?

Health plans from Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care, Taro Health and WellSense Health Plan list Ruta Nonacs 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 Ruta Nonacs was last updated on September 2, 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.