2026 NPPES data Ophthalmology Physician NPI 1942206297 MD
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WILLIAM EHLERS, MD

Ophthalmology Physician in WEATOGUE, Connecticut. 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
2K
Medicare Part D claims · 351 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
47%
generic claims · 53% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
79.3496/100
▼ 4 pts below national avg 83.1 · [object Object]
What the federal data reveals: WILLIAM EHLERS, MD is a Ophthalmology Physician ([object Object]) practicing in WEATOGUE, Connecticut with a Medicare Part D prescribing footprint of 2K claims across 351 beneficiaries — 53% brand-name prescribing . Their CMS MIPS Final Score of 79.3496/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: WILLIAM EHLERS, MD reported a CMS MIPS final score of 79.3496 out of 100, below the 83.1 national average, and filed 1,739 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

WILLIAM EHLERS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

WILLIAM EHLERS, MD at a glance

Near national average

NPI registry status

Active

Issued 06/22/2005

NPI 1942206297

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

1,739 22% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

79.3496/100 3.750399999999999% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Connecticut

How Ophthalmology Physician compares to other specialties among Connecticut providers

Connecticut providers

Ophthalmology Physician share within Connecticut

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

Medicare quality performance — MIPS

WILLIAM EHLERS, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

Near national average
MIPS Final Score
79.3496/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 79.3496/100 vs national avg 83.1

0%100%National avg83%79.3%
MIPS final score (Ophthalmology Physician) — 79.3496/100 vs national avg 83.1

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).

WILLIAM EHLERS, MD is a Ophthalmology Physician provider practicing in WEATOGUE, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1942206297. 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.

WILLIAM EHLERS, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 381 HOPMEADOW ST, WEATOGUE, CT, 06089, with a listed phone of (860) 651-1726. NPI 1942206297 was issued on 06/22/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EHLERS 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 1,739 prescription claims written by this provider, covering 351 Medicare beneficiaries and totaling roughly $722K in drug spend, split 53% brand-name and 47% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 79.3496/100 for the 2023 performance year (Quality 69.2231, Cost 48.0871), compared with the national average of 83.1.

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

381 HOPMEADOW ST
WEATOGUE, CT 06089

Provider Details

NPI 1942206297
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 06/22/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

79.3496
Final Score
Avg: 83.1
69.2231
Quality
48.0871
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where WILLIAM EHLERS, 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.

UNIVERSITY OF CONNECTICUT HEALTH CENTER
FARMINGTON, CT

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

WILLIAM EHLERS, MD — brand share 53.0%
Specialty average (est.)

53% brand-name claims vs 47% generic, on 1,739 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.

1,739
Total Claims
$722K
Total Drug Cost
351
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,259
Total Day Supply
93,783
Brand vs Generic
53% brand / 47% generic
Brand Drug Cost
$639K
Generic Drug Cost
$83K

Patient Demographics

Average Patient Age
71.9 years
Avg HCC Risk Score
1.29
Gender Split
60% female / 40% male
Age Distribution
<65: 59, 65-74: 136, 75-84: 119, 85+: 37

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
357
Brimonidine Tartrate
169
Restasis
Cyclosporine
144
Dorzolamide Hcl
118
Alphagan P
Brimonidine Tartrate
80
Cyclosporine
79
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
78
Vyzulta
Latanoprostene Bunod
78
Simbrinza
Brinzolamide/Brimonidine Tart
69
Timolol Maleate
67

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

Ophthalmology Physician Overview

How WILLIAM EHLERS, 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

WILLIAM EHLERS, MD's 1,739 claims are above the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is WILLIAM EHLERS, MD's specialty?
WILLIAM EHLERS, MD specializes in Ophthalmology Physician and practices in WEATOGUE, Connecticut. Credentials: MD.
How much does WILLIAM EHLERS, MD prescribe under Medicare Part D?
In 2023, WILLIAM EHLERS, MD wrote 1,739 Medicare Part D claims totaling $722K in drug costs for 351 beneficiaries.
What is WILLIAM EHLERS, MD's Medicare quality score?
WILLIAM EHLERS, MD has a CMS MIPS Final Score of 79.3496/100 (Quality: 69.2231, Cost: 48.0871). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WILLIAM EHLERS, MD located?
WILLIAM EHLERS, MD is located at 381 HOPMEADOW ST, WEATOGUE, CT, 06089. Phone: (860) 651-1726.
What is WILLIAM EHLERS, MD's NPI number?
WILLIAM EHLERS, MD's National Provider Identifier (NPI) is 1942206297, issued on 06/22/2005.
Does WILLIAM EHLERS, MD prescribe more brand-name or generic drugs?
WILLIAM EHLERS, MD's prescribing is 53% brand-name and 47% generic drugs by claim count, with $639K 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 WILLIAM EHLERS, MD prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM EHLERS, MD's most frequently prescribed drugs include Latanoprost, Brimonidine Tartrate, Restasis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM EHLERS, MD accept Medicare?
WILLIAM EHLERS, MD appears in CMS Medicare data with 1,739 Part D claims and 351 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM EHLERS, MD's credentials?
WILLIAM EHLERS, MD's NPI is 1942206297 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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