Registry · NAICS Index · Sector 62

621320 — Offices of Optometrists

NAICS 621320 is 'Offices of Optometrists', a 2022 U.S. national industry under Sector 62 (Health Care and Social Assistance); the SBA small-business size standard is $9,000,000.

Description

This industry comprises establishments of health practitioners having the degree of O.D. (Doctor of Optometry) primarily engaged in the independent practice of optometry. These practitioners examine, diagnose, treat, and manage diseases and disorders of the visual system, the eye, and associated structures as well as diagnose related systemic conditions. Offices of optometrists prescribe and/or provide eyeglasses, contact lenses, low vision aids, and vision therapy. They operate private or group practices in their own offices (e.g., centers, clinics) or in the facilities of others, such as hospitals or HMO medical centers, and may also provide the same services as opticians, such as selling and fitting prescription eyeglasses and contact lenses.

Exclusions & Cross-References

  • Offices of opticians primarily engaged in selling and fitting prescription eyeglasses and contact lenses are
  • classified in Industry 456130, Optical Goods Retailers; and
  • Offices of physicians primarily engaged in the independent practice of ophthalmology are classified in U.S.
  • Industry 621111, Offices of Physicians (except Mental Health Specialists).

Overview Facts

NAICS Code621320
Industry TitleOffices of Optometrists
SBA Size Standard$9,000,000
IRS PBA Code621320 (exact match)
Sectors HierarchySector 62 → 621 → 6213
Source / VerifiedUS Census 2022 NAICS Manual / 2026-06-28
NAICS Structure: 621320 National Industry
Sector (2)
62
Health Care and Social Assistance
Subsector (3)
621
Ambulatory Health Care Services
Industry Group (4)
6213
Offices of Other Health Practitioners
Industry (5)
62132
Offices of Optometrists
National Industry (6)
621320
Offices of Optometrists

Legacy SIC Concordance

Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.

Related Resources & Compliance Guides

Further regulatory reference links for NAICS code 621320:

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Frequently Asked Questions (FAQ)

Is 621320 a valid 2022 NAICS code?

NAICS 621320 is 'Offices of Optometrists', a 2022 U.S. national industry under Sector 62 (Health Care and Social Assistance); the SBA small-business size standard is $9,000,000.

What is the SBA size standard for NAICS 621320?

The SBA small business size standard for NAICS 621320 is $9,000,000 (based on receipts).

What is the legacy SIC code mapping for 621320?

NAICS code 621320 maps to the legacy 1987 SIC codes: 8042 - Offices and Clinics of Optometrists.