John Yohan Chong, M.D.
Ophthalmology Physician · Centreville, VA
John Yohan Chong, M.D. is an ophthalmology physician with a practice address in Centreville, Virginia, and NPI 1326219429, issued on Mar 17, 2008. Check the license (Virginia 0101243232, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- John Yohan Chong
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 0101243232 VA
Self-reported in NPPES; status is on the state search - Practice location
- 5900 Fort Dr, Centreville, VA 20121
- Phone
- (571) 210-5535
- Enumerated
- Mar 17, 2008
- Record last updated
- Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (703) 376-8865
- Medicare enrollment
- Enrolled (PECOS I20081006000281); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 592 in Virginia → Look up another NPI →
Also registered at 5900 Fort Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cathy Dooley, LCSW, CSACClinical Social Worker1598209298
- Judith McCall-RosenfeldClinical Social Worker1386194108
Verify John Yohan Chong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101243232Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average ophthalmology physician in 2024
877 Medicare Part D claims for 191 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Latanoprost466 claims
- Erythromycin66 claims
- Timolol Maleate61 claims
- Dorzolamide-Timolol51 claims
- Lumigan48 claims
- Alphagan P44 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.
John Yohan Chong among 592 ophthalmology physician records in Virginia
John Yohan Chong, M.D. is one of 592 ophthalmology physician records with a practice address in Virginia. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 68% of them.
- NPI issued2008 · 68% of these records are older, 27% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2004 · median 2000 among the 381 with a school on file
- Record last updated2014 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Virginia
There are 592 ophthalmology physician records in Virginia.
All 592 in Virginia → Every provider in Centreville → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Hana Na, M.D.Centreville, VA 201211285078295
- David Harvan, M.D.Manassas, VA 201101336165018
- Patricia Smith, M.D.Manassas, VA 201101164446563
- Benjamin Abramowitz, MDManassas, VA 201091376800078
- Alan Egge, M.D.Manassas, VA 201091376515759
- Charles Hogge, M.D.Manassas, VA 201091235101312
- Jennifer Jacobs, M.D.Manassas, VA 201091902878382
- Tony Kang, MDManassas, VA 201091679078877
Common questions
What is John Yohan Chong, M.D.'s NPI number?
John Yohan Chong, M.D.'s National Provider Identifier (NPI) is 1326219429, issued on Mar 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is John Yohan Chong, M.D. located?
The NPPES record lists a practice address at 5900 Fort Dr, Centreville, VA, 20121. Phone: (571) 210-5535. Providers update this record themselves, so call before visiting.
How can I verify John Yohan Chong, M.D.'s license?
NPPES lists Virginia license number 0101243232, as entered by the provider. Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Yohan Chong, M.D. prescribe under Medicare Part D?
In 2024, John Yohan Chong, M.D. had 877 Medicare Part D claims for 191 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.
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.