2026 NPPES data Adult Medicine Physician NPI 1841816709 DO
Verify on CMS →

IAN BARNES, DO

Adult Medicine Physician in STRATFORD, 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
63
Medicare Part D claims · 19 beneficiaries · Adult Medicine Physician avg: 3K
Industry payments
$293.9
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: IAN BARNES, DO is a Adult Medicine Physician ([object Object]) practicing in STRATFORD, New Jersey with a Medicare Part D prescribing footprint of 63 claims across 19 beneficiaries . Industry payments of $293.9 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: IAN BARNES, DO filed 63 Medicare Part D claims in 2023 across STRATFORD, New Jersey. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

IAN BARNES, DO 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).

IAN BARNES, DO at a glance

Quality data not reported

NPI registry status

Active

Issued 06/17/2020

NPI 1841816709

Primary specialty

Adult Medicine Physician

Niche

2,481 US NPIs in this specialty

Medicare Part D claims

63 98% vs specialty avg

2023 prescription claims

Specialty avg: 2,807

Specialty distribution in New Jersey

How Adult Medicine Physician compares to other specialties among New Jersey providers

New Jersey providers

Adult Medicine Physician share within New Jersey

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Adult 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).

IAN BARNES, DO is a Adult Medicine Physician provider practicing in STRATFORD, New Jersey, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: DO. NPI: 1841816709. 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.

IAN BARNES, DO appears in the CMS NPPES registry as a Adult Medicine Physician provider holding DO credentials at 42 E LAUREL RD STE 2600, STRATFORD, NJ, 08084, with a listed phone of (856) 566-6477. NPI 1841816709 was issued on 06/17/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNES 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 63 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $9K 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.

Adult Medicine Physician is a narrow specialty nationwide, with 2,481 enrolled providers across 52 states and an average of 2,807 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

42 E LAUREL RD STE 2600
STRATFORD, NJ 08084

Provider Details

NPI 1841816709
Specialty Adult Medicine Physician
Credentials DO
Gender Male
NPI Issued 06/17/2020

Hospital and facility affiliations

Facilities where IAN BARNES, DO 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.

CITY MEDICAL OF UPPER EAST SIDE PLLC
FOREST HILLS, NY

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 IAN BARNES, DO. Source: openpaymentsdata.cms.gov.

Total received

$294

Largest payer

AstraZeneca Pharmaceuticals LP

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.

63
Total Claims
$9K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
98
Total Day Supply
2,719
Generic Drug Cost
$495

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.67
Age Distribution
<65: 0, 65-74: 12, 75-84: N/A, 85+: N/A

Adult Medicine Physician Overview

How IAN BARNES, DO fits within the Adult Medicine Physician landscape nationally.

2,481
Adult Medicine Physician Providers in US
52
States with Adult Medicine Physician
2,807
Avg Claims per Provider

IAN BARNES, DO's 63 claims are below the specialty average of 2,807.

Nearby Adult 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 BARNES.

Compare Adult Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is IAN BARNES, DO's specialty?
IAN BARNES, DO specializes in Adult Medicine Physician and practices in STRATFORD, New Jersey. Credentials: DO.
How much does IAN BARNES, DO prescribe under Medicare Part D?
In 2023, IAN BARNES, DO wrote 63 Medicare Part D claims totaling $9K in drug costs for 19 beneficiaries.
Where is IAN BARNES, DO located?
IAN BARNES, DO is located at 42 E LAUREL RD STE 2600, STRATFORD, NJ, 08084. Phone: (856) 566-6477.
What is IAN BARNES, DO's NPI number?
IAN BARNES, DO's National Provider Identifier (NPI) is 1841816709, issued on 06/17/2020.
How many Adult Medicine Physician providers are there in the US?
There are 2,481 Adult Medicine Physician providers across 52 states in the US. The average Adult Medicine Physician provider writes 2,807 Medicare Part D claims per year.
Does IAN BARNES, DO accept Medicare?
IAN BARNES, DO appears in CMS Medicare data with 63 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify IAN BARNES, DO's credentials?
IAN BARNES, DO's NPI is 1841816709 with credentials DO. 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