2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1801833520 MD
Verify on CMS →

MARK SCHWARTZ, MD

Addiction Medicine (Family Medicine) Physician in PRINCETON, 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
119
Medicare Part D claims · 41 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
What the federal data reveals: MARK SCHWARTZ, MD is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in PRINCETON, New Jersey with a Medicare Part D prescribing footprint of 119 claims across 41 beneficiaries .

What stands out: MARK SCHWARTZ, MD filed 119 Medicare Part D claims in 2023 across PRINCETON, New Jersey. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARK SCHWARTZ, MD 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).

MARK SCHWARTZ, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/01/2006

NPI 1801833520

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

119 90% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in New Jersey

How Addiction Medicine (Family Medicine) Physician compares to other specialties among New Jersey providers

New Jersey providers

Addiction Medicine (Family Medicine) Physician share within New Jersey

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within New Jersey

Specialty board-certification context

Estimated specialty board-certified rate — Addiction Medicine (Family Medicine) Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Addiction Medicine (Family Medicine) Physician ABMS/AOA estimate

Est. board-certified rate (Addiction Medicine (Family Medicine) Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Addiction Medicine (Family Medicine) 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).

MARK SCHWARTZ, MD is a Addiction Medicine (Family Medicine) Physician provider practicing in PRINCETON, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1801833520. 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.

MARK SCHWARTZ, MD appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding MD credentials at 116 VILLAGE BLVD, PRINCETON, NJ, 08540, with a listed phone of (732) 600-7221. NPI 1801833520 was issued on 06/01/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHWARTZ 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 119 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $5K 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.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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

116 VILLAGE BLVD
PRINCETON, NJ 08540

Provider Details

NPI 1801833520
Specialty Addiction Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 06/01/2006

Hospital and facility affiliations

Facilities where MARK SCHWARTZ, MD 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.

PRINCETON HOUSE PROVIDER GROUP LLC
PRINCETON, 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).

Medicare Part D Prescribing Data

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

119
Total Claims
$5K
Total Drug Cost
41
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
120
Total Day Supply
2,766
Generic Drug Cost
$3K

Patient Demographics

Average Patient Age
59.2 years
Avg HCC Risk Score
1.44
Gender Split
46% female / 54% male
Age Distribution
<65: 23, 65-74: 16, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
11

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

Addiction Medicine (Family Medicine) Physician Overview

How MARK SCHWARTZ, MD fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

MARK SCHWARTZ, MD's 119 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in New Jersey

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

Compare Addiction Medicine (Family Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARK SCHWARTZ, MD's specialty?
MARK SCHWARTZ, MD specializes in Addiction Medicine (Family Medicine) Physician and practices in PRINCETON, New Jersey. Credentials: MD.
How much does MARK SCHWARTZ, MD prescribe under Medicare Part D?
In 2023, MARK SCHWARTZ, MD wrote 119 Medicare Part D claims totaling $5K in drug costs for 41 beneficiaries.
Where is MARK SCHWARTZ, MD located?
MARK SCHWARTZ, MD is located at 116 VILLAGE BLVD, PRINCETON, NJ, 08540. Phone: (732) 600-7221.
What is MARK SCHWARTZ, MD's NPI number?
MARK SCHWARTZ, MD's National Provider Identifier (NPI) is 1801833520, issued on 06/01/2006.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does MARK SCHWARTZ, MD prescribe most often?
Based on 2023 Medicare Part D data, MARK SCHWARTZ, MD's most frequently prescribed drugs include Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARK SCHWARTZ, MD accept Medicare?
MARK SCHWARTZ, MD appears in CMS Medicare data with 119 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARK SCHWARTZ, MD's credentials?
MARK SCHWARTZ, MD's NPI is 1801833520 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