2026 NPPES data Psychiatry Physician NPI 1447347539 MD
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GERARD ADDONIZIO, MD

Psychiatry Physician in WHITE PLAINS, New York. 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.
Prescribing volume
205
Medicare Part D claims · 14 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: GERARD ADDONIZIO, MD is a Psychiatry Physician ([object Object]) practicing in WHITE PLAINS, New York with a Medicare Part D prescribing footprint of 205 claims across 14 beneficiaries — 11% brand-name prescribing .

What stands out: GERARD ADDONIZIO, MD filed 205 Medicare Part D claims in 2023 across WHITE PLAINS, New York. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

GERARD ADDONIZIO, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

GERARD ADDONIZIO, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 10/09/2006

NPI 1447347539

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

205 80% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in New York

How Psychiatry Physician compares to other specialties among New York providers

New York providers

Psychiatry Physician share within New York

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within New York

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Psychiatry Physician) — 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).

GERARD ADDONIZIO, MD is a Psychiatry Physician provider practicing in WHITE PLAINS, New York, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1447347539. 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.

GERARD ADDONIZIO, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 21 BLOOMINGDALE RD, WHITE PLAINS, NY, 10605, with a listed phone of (914) 997-5864. NPI 1447347539 was issued on 10/09/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ADDONIZIO 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 records for calendar year 2023 show 205 prescription claims written by this provider, covering 14 Medicare beneficiaries and totaling roughly $14K in drug spend, split 11% brand-name and 89% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

21 BLOOMINGDALE RD
WHITE PLAINS, NY 10605

Provider Details

NPI 1447347539
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 10/09/2006

License & disciplinary context — New York NYSBPMC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 — they are NOT specific to GERARD ADDONIZIO, MD. To verify GERARD ADDONIZIO, MD's current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Typical

GERARD ADDONIZIO, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 205 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

205
Total Claims
$14K
Total Drug Cost
14
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
393
Total Day Supply
11,785
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$8K
Generic Drug Cost
$6K

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
0.62

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Clozapine
26
Escitalopram Oxalate
25
Bupropion Xl
Bupropion Hcl
23
Vyvanse
Lisdexamfetamine Dimesylate
19
Venlafaxine Hcl Er
Venlafaxine Hcl
18
Olanzapine
12
Divalproex Sodium Er
Divalproex Sodium
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How GERARD ADDONIZIO, MD fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

GERARD ADDONIZIO, MD's 205 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in New York

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GERARD ADDONIZIO, MD's specialty?
GERARD ADDONIZIO, MD specializes in Psychiatry Physician and practices in WHITE PLAINS, New York. Credentials: MD.
How much does GERARD ADDONIZIO, MD prescribe under Medicare Part D?
In 2023, GERARD ADDONIZIO, MD wrote 205 Medicare Part D claims totaling $14K in drug costs for 14 beneficiaries.
Where is GERARD ADDONIZIO, MD located?
GERARD ADDONIZIO, MD is located at 21 BLOOMINGDALE RD, WHITE PLAINS, NY, 10605. Phone: (914) 997-5864.
What is GERARD ADDONIZIO, MD's NPI number?
GERARD ADDONIZIO, MD's National Provider Identifier (NPI) is 1447347539, issued on 10/09/2006.
Does GERARD ADDONIZIO, MD prescribe more brand-name or generic drugs?
GERARD ADDONIZIO, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $8K in brand drug costs.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does GERARD ADDONIZIO, MD prescribe most often?
Based on 2023 Medicare Part D data, GERARD ADDONIZIO, MD's most frequently prescribed drugs include Clozapine, Escitalopram Oxalate, Bupropion Xl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GERARD ADDONIZIO, MD accept Medicare?
GERARD ADDONIZIO, MD appears in CMS Medicare data with 205 Part D claims and 14 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GERARD ADDONIZIO, MD's credentials?
GERARD ADDONIZIO, MD's NPI is 1447347539 with credentials MD. 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.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
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