Jeffrey Y.H. Chung, L.L.C., Gaithersburg: NPI Registry Record and Eye Exam Cost Context
What the registry record says
- NPI number
- 1821887431
- Legal business name
- Jeffrey Y.H. Chung, L.L.C.
- Primary registered specialty
- Ophthalmology (207W00000X)
- Practice location
- 16220 Frederick Rd Ste 121
Gaithersburg, MD 20877-4016 - Phone on the record
- (301) 880-7255
- NPI issued
- May 1, 2025
- Record last updated by the practice
- May 1, 2025
- Registry status
- NPI registry record, active as reported by CMS August 2026
- County
- Montgomery County
- Parent organization
- Jeffrey Y.H. Chung, L.L.C.
- Organization subpart
- Yes, this location bills as a subpart of a larger organization
- Locations under this name
- 2 registered nationally
- Location precision
- Street address matched by the US Census geocoder
Reading this record
CMS records this location as a subpart of Jeffrey Y.H. Chung, L.L.C., meaning it bills under its own NPI but belongs to a larger organization. 2 locations nationally are registered under the same name, so pricing and policies are likely to be set at group level rather than at this office. The entry was refreshed in May 2025, putting it among the 133 of 375 Washington-Arlington-Alexandria records updated in 2024 or later, so the contact details are more likely to be current than most of this metro.
For local context: Gaithersburg holds 21 registered eye care practices in this snapshot, 16 of them optometry and 5 ophthalmology, in ZIP codes including 20877. 18 of them took an NPI before this practice did. The closest is Argos Eyecare Center in Gaithersburg, 0.5 miles away.
None of this is a licensing check. CMS issues an NPI so a provider can be identified in billing transactions, and states plainly that issuance does not ensure or validate that the holder is licensed or credentialed. The Maryland boards hold the licensing record, and the practice itself is the only source for what it charges today.
Nearest registered practices
772 other registered eye care practices sit within 25 miles of this address, a radius that does not stop at the metro boundary. Inside the Washington-Arlington-Alexandria metro itself there are 375, 20 of them elsewhere in Gaithersburg. The closest 5 are below, measured straight line between registered addresses.
| Practice | City | Registered as | Distance | Phone on record |
|---|---|---|---|---|
| Argos Eyecare Center | Gaithersburg | Ophthalmology | 0.5 mi | (240) 482-9474 |
| Argos Vision Center, LLC | Gaithersburg | Ophthalmology | 0.5 mi | (301) 637-3181 |
| Teunis Vision Center | Derwood | Optometry | 0.8 mi | (301) 948-9171 |
| Medical Eye Associates of Rockville PC | Rockville | Ophthalmology | 0.8 mi | (301) 926-2374 |
| Marcia L. Hutcheon, M.D. | Rockville | Ophthalmology | 0.9 mi | (301) 977-0167 |
Distances are straight line between registered practice locations, not driving distance. Records placed at a ZIP centroid rather than a matched street address are excluded from this comparison.
What to expect to pay at an ophthalmology practice like this
The NPI registry holds no prices, so nothing here is a quote from Jeffrey Y.H. Chung, L.L.C.. Based on this site's own price research, an ophthalmology practice typically charges $150 to $300 or more for an exam without insurance, against a national average of about $136 and roughly $25 once a vision plan pays its share.
Ophthalmology visits are usually medical rather than routine, which changes who pays: medical insurance and Medicare Part B cover a medically necessary exam, while a routine refraction for glasses is normally not covered. Ask whether the visit will be billed as medical or routine before you book, and compare with the 238 optometry practices on the Washington-Arlington-Alexandria page if you only need a prescription.