2026 NPPES data Optometrist NPI 1376637405 O.D.
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BRUNSWICK WONG, O.D.

Optometrist in GREENVILLE, Mississippi. 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
628
Medicare Part D claims · 94 beneficiaries · Optometrist avg: 257
Generic prescribing
37%
generic claims · 63% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

BRUNSWICK WONG, O.D. filed 628 Medicare Part D claims in 2023 as a Optometrist in GREENVILLE, Mississippi, prescribing 37% generic.

628
Part D claims, 2023
37%
generic prescribing

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.

BRUNSWICK WONG, O.D.'s Medicare Part D volume vs every U.S. prescriber

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

628 Top 31% higher than 69% 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%). This entry sits in this band. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. 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

What does the federal data show about BRUNSWICK WONG, O.D.?

Quality data not reported

NPI registry status

Active

Issued 10/03/2006

NPI 1376637405

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

628 144% vs specialty avg

2023 prescription claims

Specialty avg: 257

Specialty distribution in Mississippi

How Optometrist compares to other specialties among Mississippi providers

Mississippi providers

Optometrist share within Mississippi

1. Optometrist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Optometrist share within Mississippi

Specialty board-certification context

Estimated specialty board-certified rate — Optometrist (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Optometrist ABMS/AOA estimate

Est. board-certified rate (Optometrist) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Optometrist) — 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).

BRUNSWICK WONG, O.D. appears in the CMS NPPES registry as a Optometrist provider holding O.D. credentials at 411 FAIRVIEW AVE, GREENVILLE, MS, 38701, with a listed phone of (662) 332-7229. NPI 1376637405 was issued on 10/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WONG 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 628 prescription claims written by this provider, covering 94 Medicare beneficiaries and totaling roughly $137K in drug spend, split 63% brand-name and 37% 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.

Optometrist is a high-volume specialty nationwide, with 60,463 enrolled providers across 56 states and an average of 257 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

411 FAIRVIEW AVE
GREENVILLE, MS 38701

Provider Details

NPI 1376637405
Specialty Optometrist
Credentials O.D.
Gender Male
NPI Issued 10/03/2006

Brand vs generic prescribing mix · Brand-heavy

BRUNSWICK WONG, O.D. — brand share 63.0%
Specialty average (est.)

63% brand-name claims vs 37% generic, on 628 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.

628
Total Claims
$137K
Total Drug Cost
94
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
855
Total Day Supply
23,976
Brand vs Generic
63% brand / 37% generic
Brand Drug Cost
$129K
Generic Drug Cost
$8K

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.39
Gender Split
62% female / 38% male
Age Distribution
<65: 15, 65-74: 45, 75-84: 22, 85+: 12

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What BRUNSWICK WONG, O.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Lumigan
Bimatoprost
146
Latanoprost
123
Combigan
Brimonidine Tartrate/Timolol
94
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
43
Brimonidine Tartrate
37
Restasis
Cyclosporine
30
Alphagan P
Brimonidine Tartrate
28
Dorzolamide Hcl
23
Simbrinza
Brinzolamide/Brimonidine Tart
18
Timolol Maleate
13

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

Optometrist Overview

How BRUNSWICK WONG, O.D. fits within the Optometrist landscape nationally.

60,463
Optometrist Providers in US
56
States with Optometrist
257
Avg Claims per Provider

BRUNSWICK WONG, O.D.'s 628 claims are above the specialty average of 257.

Nearby Optometrist Providers in Mississippi

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

Compare Optometrist nationally: see state-by-state distribution →

Frequently Asked Questions

What is BRUNSWICK WONG, O.D.'s specialty?
BRUNSWICK WONG, O.D. specializes in Optometrist and practices in GREENVILLE, Mississippi. Credentials: O.D..
How much does BRUNSWICK WONG, O.D. prescribe under Medicare Part D?
In 2023, BRUNSWICK WONG, O.D. wrote 628 Medicare Part D claims totaling $137K in drug costs for 94 beneficiaries.
Where is BRUNSWICK WONG, O.D. located?
BRUNSWICK WONG, O.D. is located at 411 FAIRVIEW AVE, GREENVILLE, MS, 38701. Phone: (662) 332-7229.
What is BRUNSWICK WONG, O.D.'s NPI number?
BRUNSWICK WONG, O.D.'s National Provider Identifier (NPI) is 1376637405, issued on 10/03/2006.
Does BRUNSWICK WONG, O.D. prescribe more brand-name or generic drugs?
BRUNSWICK WONG, O.D.'s prescribing is 63% brand-name and 37% generic drugs by claim count, with $129K in brand drug costs.
How many Optometrist providers are there in the US?
There are 60,463 Optometrist providers across 56 states in the US. The average Optometrist provider writes 257 Medicare Part D claims per year.
What drugs does BRUNSWICK WONG, O.D. prescribe most often?
Based on 2023 Medicare Part D data, BRUNSWICK WONG, O.D.'s most frequently prescribed drugs include Lumigan, Latanoprost, Combigan. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does BRUNSWICK WONG, O.D. accept Medicare?
BRUNSWICK WONG, O.D. appears in CMS Medicare data with 628 Part D claims and 94 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify BRUNSWICK WONG, O.D.'s credentials?
BRUNSWICK WONG, O.D.'s NPI is 1376637405 with credentials O.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