2026 NPPES data Optometrist NPI 1083090815 O.D.
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TRENTON CLEGHERN, O.D.

Optometrist in BIRMINGHAM, Alabama. 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
1K
Medicare Part D claims · 218 beneficiaries · Optometrist avg: 257
Generic prescribing
51%
generic claims · 49% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$233.38
8 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

TRENTON CLEGHERN, O.D. filed 1,049 Medicare Part D claims in 2023 as a Optometrist in BIRMINGHAM, Alabama, prescribing 51% generic.

1K
Part D claims, 2023
51%
generic prescribing
$233.38
industry payments (Sunshine Act)

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.

TRENTON CLEGHERN, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

1,049 Top 24% higher than 76% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). This entry sits in this band. 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

What does the federal data show about TRENTON CLEGHERN, O.D.?

Quality data not reported

NPI registry status

Active

Issued 08/04/2015

NPI 1083090815

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

1,049 308% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Alabama

How Optometrist compares to other specialties among Alabama providers

Alabama providers

Optometrist share within Alabama

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Alabama

Specialty board-certification context

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

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

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

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

TRENTON CLEGHERN, O.D. is a Optometrist provider practicing in BIRMINGHAM, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: O.D.. NPI: 1083090815. 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.

TRENTON CLEGHERN, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 1716 UNIVERSITY BLVD G080A, BIRMINGHAM, AL, 35294, with a listed phone of (205) 934-4748. NPI 1083090815 was issued on 08/04/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLEGHERN 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 1,049 prescription claims written by this provider, covering 218 Medicare beneficiaries and totaling roughly $423K in drug spend, split 49% brand-name and 51% 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.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

1716 UNIVERSITY BLVD G080A
BIRMINGHAM, AL 35294

Provider Details

NPI 1083090815
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 08/04/2015

Hospital and facility affiliations

Facilities where TRENTON CLEGHERN, O.D. 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.

EYE HEALTH PARTNERS OF ALABAMA INC
BIRMINGHAM, AL
UNIVERSITY OF ALABAMA AT BIRMINGHAM
BIRMINGHAM, AL

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 TRENTON CLEGHERN, O.D.. Source: openpaymentsdata.cms.gov.

Total received

$233

Largest payer

Bausch & Lomb Americas Inc.

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.

Brand vs generic prescribing mix · Above average

TRENTON CLEGHERN, O.D. — brand share 49.0%
Specialty average (est.)

49% brand-name claims vs 51% generic, on 1,049 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.

1,049
Total Claims
$423K
Total Drug Cost
218
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,505
Total Day Supply
41,504
Brand vs Generic
49% brand / 51% generic
Brand Drug Cost
$399K
Generic Drug Cost
$24K

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.25
Gender Split
59% female / 41% male
Age Distribution
<65: 39, 65-74: 87, 75-84: 63, 85+: 29

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Latanoprost
218
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
99
Lumigan
Bimatoprost
86
Brimonidine Tartrate-Timolol
Brimonidine Tartrate/Timolol
58
Timolol Maleate
56
Rhopressa
Netarsudil Mesylate
48
Combigan
Brimonidine Tartrate/Timolol
46
Rocklatan
Netarsudil Mesylat/Latanoprost
39
Travoprost
39
Brimonidine Tartrate
37

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

Optometrist Overview

How TRENTON CLEGHERN, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

TRENTON CLEGHERN, O.D.'s 1,049 claims are above the specialty average of 257.

Nearby Optometrist Providers in Alabama

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is TRENTON CLEGHERN, O.D.'s specialty?
TRENTON CLEGHERN, O.D. specializes in Optometrist and practices in BIRMINGHAM, Alabama. Credentials: O.D..
How much does TRENTON CLEGHERN, O.D. prescribe under Medicare Part D?
In 2023, TRENTON CLEGHERN, O.D. wrote 1,049 Medicare Part D claims totaling $423K in drug costs for 218 beneficiaries.
Where is TRENTON CLEGHERN, O.D. located?
TRENTON CLEGHERN, O.D. is located at 1716 UNIVERSITY BLVD G080A, BIRMINGHAM, AL, 35294. Phone: (205) 934-4748.
What is TRENTON CLEGHERN, O.D.'s NPI number?
TRENTON CLEGHERN, O.D.'s National Provider Identifier (NPI) is 1083090815, issued on 08/04/2015.
Does TRENTON CLEGHERN, O.D. prescribe more brand-name or generic drugs?
TRENTON CLEGHERN, O.D.'s prescribing is 49% brand-name and 51% generic drugs by claim count, with $399K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does TRENTON CLEGHERN, O.D. prescribe most often?
Based on 2023 Medicare Part D data, TRENTON CLEGHERN, O.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does TRENTON CLEGHERN, O.D. accept Medicare?
TRENTON CLEGHERN, O.D. appears in CMS Medicare data with 1,049 Part D claims and 218 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify TRENTON CLEGHERN, O.D.'s credentials?
TRENTON CLEGHERN, O.D.'s NPI is 1083090815 with credentials O.D.. 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