2026 NPPES data Optometrist NPI 1689725970 OD
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ANH CHUNG, OD

Optometrist in PARIS, Arkansas. 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
1K
Medicare Part D claims · 268 beneficiaries · Optometrist avg: 257
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$18.65
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANH CHUNG, OD is a Optometrist ([object Object]) practicing in PARIS, Arkansas with a Medicare Part D prescribing footprint of 1K claims across 268 beneficiaries — 26% brand-name prescribing . Their CMS MIPS Final Score of 0/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $18.65 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANH CHUNG, OD reported a CMS MIPS final score of 0 out of 100, below the 83.1 national average, and filed 1,143 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

ANH CHUNG, OD at a glance

Below national average

NPI registry status

Active

Issued 01/15/2007

NPI 1689725970

Primary specialty

Optometrist

High-volume

60,463 US NPIs in this specialty

Medicare Part D claims

1,143 345% vs specialty avg

2023 prescription claims

Specialty avg: 257

MIPS final score

0/100 83.1% pts

Penalty band band

vs 83.1 national avg

Specialty distribution in Arkansas

How Optometrist compares to other specialties among Arkansas providers

Arkansas providers

Optometrist share within Arkansas

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

Medicare quality performance — MIPS

ANH CHUNG, OD's 2023 MIPS final score plotted against the Optometrist national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Optometrist) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Optometrist) — 0/100 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).

ANH CHUNG, OD is a Optometrist provider practicing in PARIS, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: OD. NPI: 1689725970. 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.

ANH CHUNG, OD appears in the CMS NPPES registry as a Optometrist provider holding OD credentials at 25 E. WALNUT, PARIS, AR, 72855, with a listed phone of (479) 963-2661. NPI 1689725970 was issued on 01/15/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHUNG 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 1,143 prescription claims written by this provider, covering 268 Medicare beneficiaries and totaling roughly $102K in drug spend, split 26% brand-name and 74% 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 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

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

25 E. WALNUT
PARIS, AR 72855

Provider Details

NPI 1689725970
Specialty Optometrist
Credentials OD
Gender Male
NPI Issued 01/15/2007

CMS Quality Score (MIPS)

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

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

Hospital and facility affiliations

Facilities where ANH CHUNG, OD 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.

CHUNG EYE CARE PA
OZARK, AR

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 ANH CHUNG, OD. Source: openpaymentsdata.cms.gov.

Total received

$19

Largest payer

Astellas Pharma US 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

ANH CHUNG, OD — brand share 26.0%
Specialty average (est.)

26% brand-name claims vs 74% generic, on 1,143 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.

1,143
Total Claims
$102K
Total Drug Cost
268
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,424
Total Day Supply
35,381
Brand vs Generic
26% brand / 74% generic
Brand Drug Cost
$71K
Generic Drug Cost
$31K
Antibiotic Claims
64

Patient Demographics

Average Patient Age
72.4 years
Avg HCC Risk Score
1.29
Gender Split
63% female / 37% male
Age Distribution
<65: 38, 65-74: 120, 75-84: 91, 85+: 19

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
434
Erythromycin
Erythromycin Base
124
Tobramycin-Dexamethasone
Tobramycin/Dexamethasone
104
Dorzolamide-Timolol
Dorzolamide Hcl/Timolol Maleat
87
Timolol Maleate
79
Valacyclovir
Valacyclovir Hcl
71
Restasis
Cyclosporine
48
Doxycycline Hyclate
46
Prednisolone Acetate
27
Moxifloxacin
Moxifloxacin Hcl
23

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

Optometrist Overview

How ANH CHUNG, OD fits within the Optometrist landscape nationally.

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

ANH CHUNG, OD's 1,143 claims are above the specialty average of 257.

Nearby Optometrist Providers in Arkansas

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

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

Frequently Asked Questions

What is ANH CHUNG, OD's specialty?
ANH CHUNG, OD specializes in Optometrist and practices in PARIS, Arkansas. Credentials: OD.
How much does ANH CHUNG, OD prescribe under Medicare Part D?
In 2023, ANH CHUNG, OD wrote 1,143 Medicare Part D claims totaling $102K in drug costs for 268 beneficiaries.
What is ANH CHUNG, OD's Medicare quality score?
ANH CHUNG, OD has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANH CHUNG, OD located?
ANH CHUNG, OD is located at 25 E. WALNUT, PARIS, AR, 72855. Phone: (479) 963-2661.
What is ANH CHUNG, OD's NPI number?
ANH CHUNG, OD's National Provider Identifier (NPI) is 1689725970, issued on 01/15/2007.
Does ANH CHUNG, OD prescribe more brand-name or generic drugs?
ANH CHUNG, OD's prescribing is 26% brand-name and 74% generic drugs by claim count, with $71K 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 ANH CHUNG, OD prescribe most often?
Based on 2023 Medicare Part D data, ANH CHUNG, OD's most frequently prescribed drugs include Latanoprost, Erythromycin, Tobramycin-Dexamethasone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANH CHUNG, OD accept Medicare?
ANH CHUNG, OD appears in CMS Medicare data with 1,143 Part D claims and 268 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANH CHUNG, OD's credentials?
ANH CHUNG, OD's NPI is 1689725970 with credentials OD. 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