2026 NPPES data Ophthalmology Physician NPI 1194772491 D.O.
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ERIK NIEMI, D.O.

Ophthalmology Physician in BENNINGTON, 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
5K
Medicare Part D claims · 968 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
63%
generic claims · 37% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
What the federal data reveals: ERIK NIEMI, D.O. is a Ophthalmology Physician ([object Object]) practicing in BENNINGTON, Vermont with a Medicare Part D prescribing footprint of 5K claims across 968 beneficiaries — 37% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: ERIK NIEMI, D.O. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 5,146 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)

ERIK NIEMI, D.O. 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).

ERIK NIEMI, D.O. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/30/2006

NPI 1194772491

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

5,146 262% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

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

Medicare quality performance — MIPS

ERIK NIEMI, D.O.'s 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
100/100
vs 83.1 national avg · 2023 performance year

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

0%100%National avg83%99%
MIPS final score (Ophthalmology Physician) — 100/100 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).

ERIK NIEMI, D.O. is a Ophthalmology Physician provider practicing in BENNINGTON, Vermont, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: D.O.. NPI: 1194772491. 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.

ERIK NIEMI, D.O. appears in the CMS NPPES registry as a Ophthalmology Physician provider holding D.O. credentials at 322 DEWEY ST, BENNINGTON, VT, 05201, with a listed phone of (802) 447-8700. NPI 1194772491 was issued on 05/30/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what NIEMI 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 5,146 prescription claims written by this provider, covering 968 Medicare beneficiaries and totaling roughly $654K in drug spend, split 37% brand-name and 63% 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 100/100 for the 2023 performance year (Quality 100), 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

322 DEWEY ST
BENNINGTON, VT 05201

Provider Details

NPI 1194772491
Specialty Ophthalmology Physician
Credentials D.O.
Gender Male
NPI Issued 05/30/2006

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Quality

Reporting: Individual

Hospital and facility affiliations

Facilities where ERIK NIEMI, D.O. 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.

ADVANCED EYECARE PC
BENNINGTON, VT

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 · Above average

ERIK NIEMI, D.O. — brand share 37.0%
Specialty average (est.)

37% brand-name claims vs 63% generic, on 5,146 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.

5,146
Total Claims
$654K
Total Drug Cost
968
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
8,288
Total Day Supply
235,051
Brand vs Generic
37% brand / 63% generic
Brand Drug Cost
$548K
Generic Drug Cost
$106K
Antibiotic Claims
33

Patient Demographics

Average Patient Age
77.6 years
Avg HCC Risk Score
1.05
Gender Split
59% female / 41% male
Age Distribution
<65: 35, 65-74: 318, 75-84: 427, 85+: 188

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
1,281
Prednisolone Acetate
571
Lumigan
Bimatoprost
349
Ketorolac Tromethamine
334
Brimonidine Tartrate
312
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
260
Timolol Maleate
259
Polymyxin B Sul-Trimethoprim
Polymyxin B Sulf/Trimethoprim
233
Ilevro
Nepafenac
216
Erythromycin
Erythromycin Base
137

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

Ophthalmology Physician Overview

How ERIK NIEMI, D.O. 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

ERIK NIEMI, D.O.'s 5,146 claims are above 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 NIEMI.

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

Frequently Asked Questions

What is ERIK NIEMI, D.O.'s specialty?
ERIK NIEMI, D.O. specializes in Ophthalmology Physician and practices in BENNINGTON, Vermont. Credentials: D.O..
How much does ERIK NIEMI, D.O. prescribe under Medicare Part D?
In 2023, ERIK NIEMI, D.O. wrote 5,146 Medicare Part D claims totaling $654K in drug costs for 968 beneficiaries.
What is ERIK NIEMI, D.O.'s Medicare quality score?
ERIK NIEMI, D.O. has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ERIK NIEMI, D.O. located?
ERIK NIEMI, D.O. is located at 322 DEWEY ST, BENNINGTON, VT, 05201. Phone: (802) 447-8700.
What is ERIK NIEMI, D.O.'s NPI number?
ERIK NIEMI, D.O.'s National Provider Identifier (NPI) is 1194772491, issued on 05/30/2006.
Does ERIK NIEMI, D.O. prescribe more brand-name or generic drugs?
ERIK NIEMI, D.O.'s prescribing is 37% brand-name and 63% generic drugs by claim count, with $548K 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 ERIK NIEMI, D.O. prescribe most often?
Based on 2023 Medicare Part D data, ERIK NIEMI, D.O.'s most frequently prescribed drugs include Latanoprost, Prednisolone Acetate, Lumigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ERIK NIEMI, D.O. accept Medicare?
ERIK NIEMI, D.O. appears in CMS Medicare data with 5,146 Part D claims and 968 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ERIK NIEMI, D.O.'s credentials?
ERIK NIEMI, D.O.'s NPI is 1194772491 with credentials D.O.. 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