2026 NPPES data Ophthalmology Physician NPI 1851702195 M.D., PH.D.
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DAVID TERRELL, M.D., PH.D.

Ophthalmology Physician in BRATTLEBORO, Vermont. 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
821
Medicare Part D claims · 152 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DAVID TERRELL, M.D., PH.D. is a Ophthalmology Physician ([object Object]) practicing in BRATTLEBORO, Vermont with a Medicare Part D prescribing footprint of 821 claims across 152 beneficiaries — 34% brand-name prescribing .

What stands out: DAVID TERRELL, M.D., PH.D. filed 821 Medicare Part D claims in 2023 across BRATTLEBORO, Vermont. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

DAVID TERRELL, M.D., PH.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

DAVID TERRELL, M.D., PH.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/08/2014

NPI 1851702195

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

821 42% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

Specialty distribution in Vermont

How Ophthalmology Physician compares to other specialties among Vermont providers

Vermont providers

Ophthalmology Physician share within Vermont

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

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).

DAVID TERRELL, M.D., PH.D. is a Ophthalmology Physician provider practicing in BRATTLEBORO, Vermont, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PH.D.. NPI: 1851702195. 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.

DAVID TERRELL, M.D., PH.D. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding M.D., PH.D. credentials at 238 WESTERN AVE, BRATTLEBORO, VT, 05301, with a listed phone of (802) 257-5111. NPI 1851702195 was issued on 05/08/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what TERRELL 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 821 prescription claims written by this provider, covering 152 Medicare beneficiaries and totaling roughly $69K in drug spend, split 34% brand-name and 66% 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

238 WESTERN AVE
BRATTLEBORO, VT 05301

Provider Details

NPI 1851702195
Specialty Ophthalmology Physician
Credentials M.D., PH.D.
Gender Male
NPI Issued 05/08/2014

Brand vs generic prescribing mix · Above average

DAVID TERRELL, M.D., PH.D. — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 821 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.

821
Total Claims
$69K
Total Drug Cost
152
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,276
Total Day Supply
35,327
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$49K
Generic Drug Cost
$20K

Patient Demographics

Average Patient Age
77.9 years
Avg HCC Risk Score
0.99
Gender Split
57% female / 43% male

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
339
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
104
Timolol Maleate
74
Prednisolone Acetate
53
Brimonidine Tartrate
38
Acyclovir
23
Travoprost
23
Lumigan
Bimatoprost
18
Dorzolamide Hcl
16
Diclofenac Sodium
14

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

Ophthalmology Physician Overview

How DAVID TERRELL, M.D., PH.D. 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

DAVID TERRELL, M.D., PH.D.'s 821 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Vermont

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

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

Frequently Asked Questions

What is DAVID TERRELL, M.D., PH.D.'s specialty?
DAVID TERRELL, M.D., PH.D. specializes in Ophthalmology Physician and practices in BRATTLEBORO, Vermont. Credentials: M.D., PH.D..
How much does DAVID TERRELL, M.D., PH.D. prescribe under Medicare Part D?
In 2023, DAVID TERRELL, M.D., PH.D. wrote 821 Medicare Part D claims totaling $69K in drug costs for 152 beneficiaries.
Where is DAVID TERRELL, M.D., PH.D. located?
DAVID TERRELL, M.D., PH.D. is located at 238 WESTERN AVE, BRATTLEBORO, VT, 05301. Phone: (802) 257-5111.
What is DAVID TERRELL, M.D., PH.D.'s NPI number?
DAVID TERRELL, M.D., PH.D.'s National Provider Identifier (NPI) is 1851702195, issued on 05/08/2014.
Does DAVID TERRELL, M.D., PH.D. prescribe more brand-name or generic drugs?
DAVID TERRELL, M.D., PH.D.'s prescribing is 34% brand-name and 66% generic drugs by claim count, with $49K 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.
What drugs does DAVID TERRELL, M.D., PH.D. prescribe most often?
Based on 2023 Medicare Part D data, DAVID TERRELL, M.D., PH.D.'s most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Timolol Maleate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID TERRELL, M.D., PH.D. accept Medicare?
DAVID TERRELL, M.D., PH.D. appears in CMS Medicare data with 821 Part D claims and 152 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID TERRELL, M.D., PH.D.'s credentials?
DAVID TERRELL, M.D., PH.D.'s NPI is 1851702195 with credentials M.D., PH.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