2026 NPPES data Psychologist NPI 1891434197 PHD
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MARIE-CHRISTINE NIZZI, PHD

Psychologist in WEST LEBANON, New Hampshire. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.

What the federal data shows

MARIE-CHRISTINE NIZZI, PHD is a Psychologist in WEST LEBANON, New Hampshire, listed in the federal CMS National Provider Identifier registry.

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

What does the federal data show about MARIE-CHRISTINE NIZZI, PHD?

Quality data not reported

NPI registry status

Active

Issued 06/03/2022

NPI 1891434197

Primary specialty

Psychologist

Mid-sized

47,503 US NPIs in this specialty

Specialty distribution in New Hampshire

How Psychologist compares to other specialties among New Hampshire providers

New Hampshire providers

Psychologist share within New Hampshire

1. Psychologist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychologist share within New Hampshire

Specialty board-certification context

Estimated specialty board-certified rate — Psychologist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychologist ABMS/AOA estimate

Est. board-certified rate (Psychologist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychologist) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MARIE-CHRISTINE NIZZI, PHD is a Psychologist provider practicing in WEST LEBANON, New Hampshire, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PHD. NPI: 1891434197. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MARIE-CHRISTINE NIZZI, PHD appears in the CMS NPPES registry as a Psychologist provider holding PHD credentials at 10 BENNING ST STE 160-170, WEST LEBANON, NH, 03784, with a listed phone of (857) 204-4057. NPI 1891434197 was issued on 06/03/2022. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIZZI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Psychologist providers operate outside Part D entirely.

Psychologist is a mid-sized specialty nationwide, with 47,503 enrolled providers across 56 states and an average of 760 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

10 BENNING ST STE 160-170
WEST LEBANON, NH 03784

Provider Details

NPI 1891434197
Specialty Psychologist
Credentials PHD
Gender Female
NPI Issued 06/03/2022

Psychologist Overview

How MARIE-CHRISTINE NIZZI, PHD fits within the Psychologist landscape nationally.

47,503
Psychologist Providers in US
56
States with Psychologist
760
Avg Claims per Provider

Nearby Psychologist Providers in New Hampshire

Other clinicians with the same primary specialty enrolled in New Hampshire, drawn from the same CMS NPPES roster as NIZZI.

Compare Psychologist nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARIE-CHRISTINE NIZZI, PHD's specialty?
MARIE-CHRISTINE NIZZI, PHD specializes in Psychologist and practices in WEST LEBANON, New Hampshire. Credentials: PHD.
Where is MARIE-CHRISTINE NIZZI, PHD located?
MARIE-CHRISTINE NIZZI, PHD is located at 10 BENNING ST STE 160-170, WEST LEBANON, NH, 03784. Phone: (857) 204-4057.
What is MARIE-CHRISTINE NIZZI, PHD's NPI number?
MARIE-CHRISTINE NIZZI, PHD's National Provider Identifier (NPI) is 1891434197, issued on 06/03/2022.
How many Psychologist providers are there in the US?
There are 47,503 Psychologist providers across 56 states in the US. The average Psychologist provider writes 760 Medicare Part D claims per year.
Does MARIE-CHRISTINE NIZZI, PHD accept Medicare?
MARIE-CHRISTINE NIZZI, PHD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARIE-CHRISTINE NIZZI, PHD's credentials?
MARIE-CHRISTINE NIZZI, PHD's NPI is 1891434197 with credentials PHD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology