2026 NPPES data Psychiatry Physician NPI 1164664967 D.O.
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PETER CLARK, D.O.

Psychiatry Physician in BEDMINSTER, New Jersey. 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
527
Medicare Part D claims · 46 beneficiaries · Psychiatry Physician avg: 1K
Industry payments
$79.5
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

PETER CLARK, D.O. filed 527 Medicare Part D claims in 2023 as a Psychiatry Physician in BEDMINSTER, New Jersey.

527
Part D claims, 2023
Likely
board-certified (heuristic)

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.

PETER CLARK, D.O.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

527 Top 34% higher than 66% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

PETER CLARK, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about PETER CLARK, D.O.?

Quality data not reported

NPI registry status

Active

Issued 03/25/2009

NPI 1164664967

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

527 49% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in New Jersey

How Psychiatry Physician compares to other specialties among New Jersey providers

New Jersey providers

Psychiatry Physician share within New Jersey

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

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).

PETER CLARK, D.O. appears in the CMS NPPES registry as a Psychiatry Physician provider holding D.O. credentials at 1 ROBERTSON DR, BEDMINSTER, NJ, 07921, with a listed phone of (908) 277-8900. NPI 1164664967 was issued on 03/25/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLARK 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 527 prescription claims written by this provider, covering 46 Medicare beneficiaries and totaling roughly $10K in drug spend. 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

1 ROBERTSON DR
BEDMINSTER, NJ 07921

Provider Details

NPI 1164664967
Specialty Psychiatry Physician
Credentials D.O.
Gender Male
NPI Issued 03/25/2009

Hospital and facility affiliations

Facilities where PETER CLARK, D.O. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

SUMMIT MEDICAL GROUP PA
BERKELEY HEIGHTS, NJ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for PETER CLARK, D.O.. Source: openpaymentsdata.cms.gov.

Total received

$80

Largest payer

Telix Pharmaceuticals

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

527
Total Claims
$10K
Total Drug Cost
46
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
686
Total Day Supply
19,923
Brand Drug Cost
$0
Generic Drug Cost
$10K

Patient Demographics

Average Patient Age
71.1 years
Avg HCC Risk Score
1.43
Gender Split
48% female / 52% male

Top Prescribed Drugs (Medicare Part D)

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

What PETER CLARK, D.O. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Venlafaxine Hcl Er
Venlafaxine Hcl
85
Sertraline Hcl
82
Duloxetine Hcl
60
Mirtazapine
55
Trazodone Hcl
34
Aripiprazole
28
Bupropion Xl
Bupropion Hcl
26
Gabapentin
23
Alprazolam
20
Clonazepam
16

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

Psychiatry Physician Overview

How PETER CLARK, D.O. 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

PETER CLARK, D.O.'s 527 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in New Jersey

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

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

Frequently Asked Questions

What is PETER CLARK, D.O.'s specialty?
PETER CLARK, D.O. specializes in Psychiatry Physician and practices in BEDMINSTER, New Jersey. Credentials: D.O..
How much does PETER CLARK, D.O. prescribe under Medicare Part D?
In 2023, PETER CLARK, D.O. wrote 527 Medicare Part D claims totaling $10K in drug costs for 46 beneficiaries.
Where is PETER CLARK, D.O. located?
PETER CLARK, D.O. is located at 1 ROBERTSON DR, BEDMINSTER, NJ, 07921. Phone: (908) 277-8900.
What is PETER CLARK, D.O.'s NPI number?
PETER CLARK, D.O.'s National Provider Identifier (NPI) is 1164664967, issued on 03/25/2009.
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 PETER CLARK, D.O. prescribe most often?
Based on 2023 Medicare Part D data, PETER CLARK, D.O.'s most frequently prescribed drugs include Venlafaxine Hcl Er, Sertraline Hcl, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does PETER CLARK, D.O. accept Medicare?
PETER CLARK, D.O. appears in CMS Medicare data with 527 Part D claims and 46 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify PETER CLARK, D.O.'s credentials?
PETER CLARK, D.O.'s NPI is 1164664967 with credentials D.O.. 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