2026 NPPES data Ophthalmology Physician NPI 1821082181 MD
Verify on CMS →

BRIAN WEISMANN, MD

Ophthalmology Physician in ST JOHN, Indiana. 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
589
Medicare Part D claims · 114 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
66%
generic claims · 34% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.6667/100
▲ 14 pts above national avg 83.1 · [object Object]

What the federal data shows

BRIAN WEISMANN, MD reported a CMS MIPS final score of 96.6667/100 — above the 83.1 national average — and filed 589 Medicare Part D claims in 2023.

96.6667/100
MIPS score · +14 vs avg
589
Part D claims, 2023
66%
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.

BRIAN WEISMANN, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

97 Top 17% higher than 83% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

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

What does the federal data show about BRIAN WEISMANN, MD?

High performer (top quartile)

NPI registry status

Active

Issued 09/01/2005

NPI 1821082181

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

589 59% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

MIPS final score

96.6667/100 13.566700000000012% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Indiana

How Ophthalmology Physician compares to other specialties among Indiana providers

Indiana providers

Ophthalmology Physician share within Indiana

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

Medicare quality performance — MIPS

BRIAN WEISMANN, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average

High performer (top quartile)
MIPS Final Score
96.6667/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Ophthalmology Physician) — 96.6667/100 vs national avg 83.1

0%100%National avg83%96.7%
MIPS final score (Ophthalmology Physician) — 96.6667/100 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).

BRIAN WEISMANN, MD is a Ophthalmology Physician provider practicing in ST JOHN, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1821082181. 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.

BRIAN WEISMANN, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 10220 WICKER AVE, ST JOHN, IN, 46373, with a listed phone of (219) 365-3900. NPI 1821082181 was issued on 09/01/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WEISMANN 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 589 prescription claims written by this provider, covering 114 Medicare beneficiaries and totaling roughly $41K 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.6667/100 for the 2023 performance year (Quality 93.3333), 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

10220 WICKER AVE
ST JOHN, IN 46373

Provider Details

NPI 1821082181
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 09/01/2005

CMS Quality Score (MIPS)

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

96.6667
Final Score
Avg: 83.1
93.3333
Quality

Reporting: Individual

Brand vs generic prescribing mix · Above average

BRIAN WEISMANN, MD — brand share 34.0%
Specialty average (est.)

34% brand-name claims vs 66% generic, on 589 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.

589
Total Claims
$41K
Total Drug Cost
114
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,037
Total Day Supply
29,051
Brand vs Generic
34% brand / 66% generic
Brand Drug Cost
$33K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
76.7 years
Avg HCC Risk Score
1.11
Gender Split
52% female / 48% 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
244
Timolol Maleate
90
Prednisolone Acetate
35
Moxifloxacin
Moxifloxacin Hcl
30
Brimonidine Tartrate
24
Diclofenac Sodium
24
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
24
Alphagan P
Brimonidine Tartrate
21
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
11

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

Ophthalmology Physician Overview

How BRIAN WEISMANN, 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

BRIAN WEISMANN, MD's 589 claims are below the specialty average of 1,420.

Nearby Ophthalmology Physician Providers in Indiana

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

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

Frequently Asked Questions

What is BRIAN WEISMANN, MD's specialty?
BRIAN WEISMANN, MD specializes in Ophthalmology Physician and practices in ST JOHN, Indiana. Credentials: MD.
How much does BRIAN WEISMANN, MD prescribe under Medicare Part D?
In 2023, BRIAN WEISMANN, MD wrote 589 Medicare Part D claims totaling $41K in drug costs for 114 beneficiaries.
What is BRIAN WEISMANN, MD's Medicare quality score?
BRIAN WEISMANN, MD has a CMS MIPS Final Score of 96.6667/100 (Quality: 93.3333). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is BRIAN WEISMANN, MD located?
BRIAN WEISMANN, MD is located at 10220 WICKER AVE, ST JOHN, IN, 46373. Phone: (219) 365-3900.
What is BRIAN WEISMANN, MD's NPI number?
BRIAN WEISMANN, MD's National Provider Identifier (NPI) is 1821082181, issued on 09/01/2005.
Does BRIAN WEISMANN, MD prescribe more brand-name or generic drugs?
BRIAN WEISMANN, MD's prescribing is 34% brand-name and 66% generic drugs by claim count, with $33K 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 BRIAN WEISMANN, MD prescribe most often?
Based on 2023 Medicare Part D data, BRIAN WEISMANN, MD's most frequently prescribed drugs include Latanoprost, Timolol Maleate, Prednisolone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRIAN WEISMANN, MD accept Medicare?
BRIAN WEISMANN, MD appears in CMS Medicare data with 589 Part D claims and 114 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRIAN WEISMANN, MD's credentials?
BRIAN WEISMANN, MD's NPI is 1821082181 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