NPPES file of Aug 9, 2026

Chyn-Ni Hu Clark, O.D.

Optometrist · Gainesville, FL

Chyn-Ni Hu Clark, O.D. is an optometrist with a practice address in Gainesville, Florida, and NPI 1285930362, issued on Feb 7, 2011. Check the license (Florida OPC4597, as entered in NPPES) on the Florida health license search; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285930362
Name
Chyn-Ni Hu Clark
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
OPC4597 FL
R208TA35 AL
Self-reported in NPPES; status is on the state search
Practice location
4340 Newberry RD., Gainesville, FL 32607
Phone
(352) 372-9414
Enumerated
Feb 7, 2011
Record last updated
Nov 18, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(352) 271-5393
Medicaid ID
003813900 FL
Medicare enrollment
Enrolled (PECOS I20180316000539); accepts Medicare assignment
Medical or professional school
Southern College Of Optometry, 2010
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 3,594 in Florida → Look up another NPI →

Also registered at 4340 Newberry RD.

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ryan Baker, AU.D.Audiologist1629258769
  2. Renee Berens, PA-CMedical Physician Assistant1932597101
  3. Patricia Brewer, OPTICIANOptician1760824965
  4. Virginia Petitto, M.D.Ophthalmology Physician1588624407
  5. Steven Petrakis, AUDAudiologist1417217407

Verify Chyn-Ni Hu Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersFlorida health license search
    Search for license OPC4597    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Florida license search

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4% more Medicare Part D claims than the average optometrist in 2024

289 Medicare Part D claims for 94 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 35% of claims.

  1. Chyn-Ni Clark289
  2. Specialty average277

Most prescribed

  1. Latanoprost137 claims
  2. Timolol Maleate33 claims
  3. Travoprost23 claims
  4. Erythromycin11 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $171.84

4 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Chyn-Ni Clark$171.84
  2. Specialty average$769.99

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Eye Medicial Associates OF AbileneSweetwater, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Chyn-Ni Hu Clark among 3,594 optometrist records in Florida

Chyn-Ni Hu Clark, O.D. is one of 3,594 optometrist records with a practice address in Florida. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 58% of them.

  • NPI issued2011 · 58% of these records are older, 39% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2010 · median 2006 among the 1,833 with a school on file
  • Record last updated2014 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Florida practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Florida

There are 3,594 optometrist records in Florida.

All 3,594 in Florida → Every provider in Gainesville → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Michael Herriott, O.D.Gainesville, FL 326071942588926
  2. An Huynh, O.D.Gainesville, FL 326071275941874
  3. Aria Murphy, O.D.Gainesville, FL 326071023314382
  4. Adam Anhalt, O.D.Gainesville, FL 326061851376453
  5. Brian Atkins, ODGainesville, FL 326081184637001
  6. Carolyn Clark, O.D.Gainesville, FL 326081962416172
  7. Marissa CruzGainesville, FL 326061841979937
  8. Catherine Dees, ODGainesville, FL 326061821622853

Common questions

What is Chyn-Ni Hu Clark, O.D.'s NPI number?

Chyn-Ni Hu Clark, O.D.'s National Provider Identifier (NPI) is 1285930362, issued on Feb 7, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Chyn-Ni Hu Clark, O.D. located?

The NPPES record lists a practice address at 4340 Newberry RD., Gainesville, FL, 32607. Phone: (352) 372-9414. Providers update this record themselves, so call before visiting.

How can I verify Chyn-Ni Hu Clark, O.D.'s license?

NPPES lists Florida license number OPC4597, as entered by the provider. Search the Florida health license search at https://mqa-internet.doh.state.fl.us/mqasearchservices/healthcareproviders. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chyn-Ni Hu Clark, O.D. prescribe under Medicare Part D?

In 2024, Chyn-Ni Hu Clark, O.D. had 289 Medicare Part D claims for 94 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.