2026 NPPES data Ophthalmology Physician NPI 1609806330 MD
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LEO WANG, MD

Ophthalmology Physician in SCHERERVILLE, 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
6K
Medicare Part D claims · 667 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
61%
generic claims · 39% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$348.75
17 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

LEO WANG, MD filed 5,635 Medicare Part D claims in 2023 as a Ophthalmology Physician in SCHERERVILLE, Indiana, prescribing 61% generic.

6K
Part D claims, 2023
61%
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.

LEO WANG, MD's Medicare Part D volume vs every U.S. prescriber

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

5,635 Top 5% higher than 95% 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%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

LEO WANG, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — 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 LEO WANG, MD?

Quality data not reported

NPI registry status

Active

Issued 07/05/2006

NPI 1609806330

Primary specialty

Ophthalmology Physician

Mid-sized

22,090 US NPIs in this specialty

Medicare Part D claims

5,635 297% vs specialty avg

2023 prescription claims

Specialty avg: 1,420

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

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).

LEO WANG, MD is a Ophthalmology Physician provider practicing in SCHERERVILLE, Indiana, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1609806330. 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.

LEO WANG, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 326 W US HIGHWAY 30, SCHERERVILLE, IN, 46375, with a listed phone of (312) 335-2400. NPI 1609806330 was issued on 07/05/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WANG 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 5,635 prescription claims written by this provider, covering 667 Medicare beneficiaries and totaling roughly $653K in drug spend, split 39% brand-name and 61% 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

326 W US HIGHWAY 30
SCHERERVILLE, IN 46375

Provider Details

NPI 1609806330
Specialty Ophthalmology Physician
Credentials MD
Gender Male
NPI Issued 07/05/2006

Hospital and facility affiliations

Facilities where LEO WANG, 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.

HELIX EYE CARE PC
SCHERERVILLE, IN

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 LEO WANG, MD. Source: openpaymentsdata.cms.gov.

Total received

$349

Largest payer

NEW WORLD MEDICAL,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

LEO WANG, MD — brand share 39.0%
Specialty average (est.)

39% brand-name claims vs 61% generic, on 5,635 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.

5,635
Total Claims
$653K
Total Drug Cost
667
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,379
Total Day Supply
266,877
Brand vs Generic
39% brand / 61% generic
Brand Drug Cost
$532K
Generic Drug Cost
$120K

Patient Demographics

Average Patient Age
73.8 years
Avg HCC Risk Score
1.53
Gender Split
55% female / 45% male
Age Distribution
<65: 79, 65-74: 281, 75-84: 217, 85+: 90

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
1,454
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
742
Brimonidine Tartrate
574
Prednisolone Acetate
383
Timolol Maleate
349
Lumigan
Bimatoprost
244
Dorzolamide Hcl
219
Rhopressa
Netarsudil Mesylate
169
Combigan
Brimonidine Tartrate/Timolol
161
Travoprost
122

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

Ophthalmology Physician Overview

How LEO WANG, 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

LEO WANG, MD's 5,635 claims are above 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 WANG.

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

Frequently Asked Questions

What is LEO WANG, MD's specialty?
LEO WANG, MD specializes in Ophthalmology Physician and practices in SCHERERVILLE, Indiana. Credentials: MD.
How much does LEO WANG, MD prescribe under Medicare Part D?
In 2023, LEO WANG, MD wrote 5,635 Medicare Part D claims totaling $653K in drug costs for 667 beneficiaries.
Where is LEO WANG, MD located?
LEO WANG, MD is located at 326 W US HIGHWAY 30, SCHERERVILLE, IN, 46375. Phone: (312) 335-2400.
What is LEO WANG, MD's NPI number?
LEO WANG, MD's National Provider Identifier (NPI) is 1609806330, issued on 07/05/2006.
Does LEO WANG, MD prescribe more brand-name or generic drugs?
LEO WANG, MD's prescribing is 39% brand-name and 61% generic drugs by claim count, with $532K 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 LEO WANG, MD prescribe most often?
Based on 2023 Medicare Part D data, LEO WANG, MD's most frequently prescribed drugs include Latanoprost, Dorzolamide-Timolol, Brimonidine Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEO WANG, MD accept Medicare?
LEO WANG, MD appears in CMS Medicare data with 5,635 Part D claims and 667 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEO WANG, MD's credentials?
LEO WANG, MD's NPI is 1609806330 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.
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