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● Active Type 1 · Individual

Dr. Charles Derek Cohn, M.D.

Ophthalmology·Fredericksburg, TX· NPI 1003044058 · Enumerated 2009 · 17 years on NPI
Cohn is 1 of 7 ophthalmology providers in Fredericksburg and 1 of 2,177 in Texas.
NPI age
17 years
Enumerated 2009-06-29
Primary specialty
Ophthalmology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2026-01-24
Source: CMS NPPES provider record
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 2177 active ophthalmology providers in Texas.

NPI age
17 years
↓ 2 yr below median (19 yr)
State licenses
1 state
13% 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
📞 8309976535fax 8309979695
Mailing address
751 S Washington St
Fredericksburg, TX 786245022
📞 8309976535fax 8309979695

Specialties

  • Ophthalmology Primary
    An 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...
    TX license #P0187 taxonomy 207W00000X

Medicare directory context

Attributes below come from the CMS Doctors & Clinicians dataset used by Medicare Care Compare, retrieved 2026-10-12. They apply only to this clinician's public Medicare listing.

Medicare specialties
Ophthalmology
Medical school
University Of Texas Medical Branch At Galveston
Graduation year 2009
Largest Medicare group
3 members
Largest listed enrollment group

Facility affiliations reported by CMS

  • Fredericksburg Eye Associates, Pllc

Medicare listing data does not guarantee that a clinician is accepting new patients or that a service is covered. View the CMS dataset →

Practice context

Part of a multi-provider practice. 4 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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