2026 NPPES data Ophthalmology Physician NPI 1851954879 MD
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JONATHAN BARNETT, MD

Ophthalmology Physician in NASHVILLE, Tennessee. 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
61
Medicare Part D claims · 27 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
43%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: JONATHAN BARNETT, MD is a Ophthalmology Physician ([object Object]) practicing in NASHVILLE, Tennessee with a Medicare Part D prescribing footprint of 61 claims across 27 beneficiaries — 57% brand-name prescribing .

What the federal data shows

JONATHAN BARNETT, MD filed 61 Medicare Part D claims in 2023 as a Ophthalmology Physician in NASHVILLE, Tennessee, prescribing 43% generic.

61
Part D claims, 2023
43%
generic prescribing
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.

Board certification likely (heuristic — not verified)

JONATHAN BARNETT, 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).

JONATHAN BARNETT, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/16/2019

NPI 1851954879

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

61 96% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Tennessee

How Ophthalmology Physician compares to other specialties among Tennessee providers

Tennessee providers

Ophthalmology Physician share within Tennessee

1. Ophthalmology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Ophthalmology Physician share within Tennessee

Specialty board-certification context

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

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

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

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

JONATHAN BARNETT, MD is a Ophthalmology Physician provider practicing in NASHVILLE, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1851954879. 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.

JONATHAN BARNETT, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 3601 THE VANDERBILT CLINIC, NASHVILLE, TN, 37232, with a listed phone of (615) 322-5000. NPI 1851954879 was issued on 04/16/2019. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNETT 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 61 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $15K in drug spend, split 57% brand-name and 43% 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.

Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 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

3601 THE VANDERBILT CLINIC
NASHVILLE, TN 37232

Provider Details

NPI 1851954879
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 04/16/2019

Hospital and facility affiliations

Facilities where JONATHAN BARNETT, 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.

VANDERBILT UNIVERSITY MEDICAL CENTER
★★★★★ 5/5
NASHVILLE, TN
Acute Care Hospitals
CMS CCN: 440039

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

Brand vs generic prescribing mix · Brand-heavy

JONATHAN BARNETT, MD — brand share 57.0%
Specialty average (est.)

57% brand-name claims vs 43% generic, on 61 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.

61
Total Claims
$15K
Total Drug Cost
27
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
100
Total Day Supply
2,704
Brand vs Generic
57% brand / 43% generic
Brand Drug Cost
$13K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.59
Gender Split
59% female / 41% male

Ophthalmology Physician Overview

How JONATHAN BARNETT, MD fits within the Ophthalmology Physician landscape nationally.

22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider

JONATHAN BARNETT, MD's 61 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Tennessee

Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as BARNETT.

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

Frequently Asked Questions

What is JONATHAN BARNETT, MD's specialty?
JONATHAN BARNETT, MD specializes in Ophthalmology Physician and practices in NASHVILLE, Tennessee. Credentials: MD.
How much does JONATHAN BARNETT, MD prescribe under Medicare Part D?
In 2023, JONATHAN BARNETT, MD wrote 61 Medicare Part D claims totaling $15K in drug costs for 27 beneficiaries.
Where is JONATHAN BARNETT, MD located?
JONATHAN BARNETT, MD is located at 3601 THE VANDERBILT CLINIC, NASHVILLE, TN, 37232. Phone: (615) 322-5000.
What is JONATHAN BARNETT, MD's NPI number?
JONATHAN BARNETT, MD's National Provider Identifier (NPI) is 1851954879, issued on 04/16/2019.
Does JONATHAN BARNETT, MD prescribe more brand-name or generic drugs?
JONATHAN BARNETT, MD's prescribing is 57% brand-name and 43% generic drugs by claim count, with $13K in brand drug costs.
How many Ophthalmology Physician providers are there in the US?
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
Does JONATHAN BARNETT, MD accept Medicare?
JONATHAN BARNETT, MD appears in CMS Medicare data with 61 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JONATHAN BARNETT, MD's credentials?
JONATHAN BARNETT, MD's NPI is 1851954879 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