NPI age
16 years
Enumerated 2009-06-29
● Active
Type 1 · Individual
DR. Charles Derek Cohn, M.D.
Cohn is 1 of 7 ophthalmology providers in Fredericksburg and 1 of 2155 in Texas.
Primary specialty
Ophthalmology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-01-24
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2155 active ophthalmology providers in Texas.
NPI age
16 years
↓ 3 yr below median (19 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
0
31% of peers hold subspecialties
NPI lifetime · 2009 → 2026
2009-06Enumerated in NPPES
2009
2026
Where they practice
Practice location
751 S Washington St
Fredericksburg, TX 786245022
Mailing address
751 S Washington St
Fredericksburg, TX 786245022
Specialties
-
Ophthalmology PrimaryAn ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual...
Practice context
Part of a multi-provider practice. 4 other active providers share this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.