NPI age
16 years
Enumerated 2009-10-05
● Active
Type 1 · Individual
DR. Mark E Nelson, OD
Nelson is 1 of 16 optometrist providers in Sherman and 1 of 7867 in Texas.
Primary specialty
Optometrist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2009-10-05
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 7867 active optometrist providers in Texas.
NPI age
16 years
≈ at median (15 yr)
State licenses
1 state
5% of peers hold multiple states
Subspecialties
0
13% of peers hold subspecialties
NPI lifetime · 2009 → 2026
2009-10Enumerated in NPPES
2009
2026
Where they practice
Practice location
3333 S Highway 75
Sherman, TX 750909377
Mailing address
8401 Memorial Ln, Apt #4307
Plano, TX 750242285
Specialties
-
Optometrist PrimaryDoctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as...
Practice context
Part of a multi-provider practice. 1 other active provider shares 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.