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USA Classification Hub
Legacy NAICS 2017 USA
Code
423450

Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers

Legacy entry preserved as a historical layer and reverse lookup target.

Modern match: 423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers

Frequently asked questions

What is NAICS 423450?
NAICS 423450 is the North American Industry Classification System code for Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers. It classifies this business activity for statistical, regulatory, and government procurement purposes. Federal agencies use NAICS codes to collect and publish data about the US economy, determine SBA size standards, and set aside contracts for small businesses.
What licenses and permits does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers need?
A Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers typically needs a local business license, a federal EIN from the IRS, and industry-specific permits depending on the sector. Check with your city or county clerk for a general business license, your state's professional or industry licensing board for any required occupational licenses, and your state's tax authority for a sales tax permit if you sell taxable goods or services.
How do I register a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers business in the United States?
To register a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers business, first choose your legal structure: sole proprietorship (simplest, uses SSN), LLC (personal liability protection, files with your Secretary of State), or corporation (Form 1120 or 1120-S). Register your business name (DBA) with your county if operating under a trade name. Obtain an EIN from the IRS at irs.gov/ein. Register with your state revenue department for any applicable taxes.
What tax forms does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers file with the IRS?
Tax forms depend on your entity type. A sole proprietor files Schedule C with Form 1040 and Schedule SE for self-employment tax (15.3%). An LLC taxed as a partnership files Form 1065 with Schedule K-1s. A C-Corporation files Form 1120 (21% flat rate). An S-Corporation files Form 1120-S. All businesses paying employees file Form 940 (FUTA) annually and Form 941 quarterly. Estimated tax payments are made via Form 1040-ES four times per year.
Is Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers the right NAICS code for my business?
Your NAICS code should reflect your primary business activity — the one generating the most revenue or value. If Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers describes your main line of business, NAICS 423450 is likely correct. If you have multiple distinct activities, you may need separate codes for statistical reporting. For federal contracting, your SAM.gov registration should use the code that best matches the work you perform. Review the official NAICS 423450 description and exclusions to confirm it fits your operations.
How does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers enroll with Medicare and Medicaid?
Enroll through CMS PECOS (Provider Enrollment, Chain, and Ownership System) online or via paper Form CMS-855. You'll need your NPI, state license, DEA certificate (if prescribing), malpractice insurance, and bank account for EFT payments. Medicare enrollment processes as a Group Practice (CMS-855B) or Individual Practitioner (CMS-855I). Medicaid enrollment is state-specific but uses a common data set. Revalidation is required every 3-5 years. Enrollment can take 60-90 days.
What is a Business Associate Agreement (BAA) and does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers need one?
A Business Associate Agreement (BAA) is a HIPAA-required contract between a covered entity and any vendor that creates, receives, maintains, or transmits protected health information (PHI) on their behalf. Common BAs include EHR vendors, billing services, cloud hosting, IT support, shredding services, and answering services. The BAA must specify permitted PHI uses, require BA to implement safeguards, report breaches, and ensure subcontractors also comply. BAAs are legally mandatory — working without one is a HIPAA violation.
What malpractice insurance does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers need?
Medical malpractice (professional liability) insurance is not federally required but is mandatory for hospital privileges, many insurer credentialing panels, and in some states (e.g., Colorado, Connecticut, Kansas, Wisconsin) for specific professions. Policy types: claims-made (covers incidents reported while policy is active) vs. occurrence (covers incidents that happened during the policy period regardless of when claimed). Tail coverage is needed when canceling a claims-made policy. Limits typically range from $1M/$3M (per claim/aggregate) upward.
Does a Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers need a DEA registration to prescribe medications?
Yes. Any healthcare provider who prescribes, administers, or dispenses controlled substances (Schedules II-V) must register with the DEA. Registration is by state and by business address. The application fee is $888 (3-year cycle). You need a valid state medical license first. DEA registration is location-specific — if you practice at multiple locations, you may need separate registrations. Starting 2023, new DEA registrants must complete 8 hours of opioid/substance use disorder training.

How to register a medical, dental, and hospital equipment and supplies merchant wholesalers business in the US

1
Verify NAICS classification

Confirm that Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers accurately describes your healthcare activity.

2
Obtain state medical board / professional license

Healthcare providers must hold active state professional licenses for their specific discipline.

3
Implement HIPAA compliance program

Covered entities and business associates must maintain HIPAA privacy and security policies, train staff, and conduct risk assessments.

4
Register for NPI number

National Provider Identifier through HHS/CMS — required for billing and electronic healthcare transactions.

5
Apply for Medicare/Medicaid enrollment

If accepting federal healthcare programs, enroll via CMS PECOS or state Medicaid agency.

US Tax Forms & Registration

Form NameWho Files ItFrequency
Profit or Loss from Business
U.S. Return of Partnership Income
U.S. Corporation Income Tax Return
U.S. Income Tax Return for an S Corporation
Self-Employment Tax
Estimated Tax for Individuals
Application for Employer Identification Number (EIN)
Entity Classification Election
Nonemployee Compensation
Employer's Annual Federal Unemployment (FUTA) Tax Return
Employer's Quarterly Federal Tax Return
Request for Taxpayer Identification Number and Certification

Entity Comparison

$

No federal sales tax in the United States. Sales tax is imposed at state and local levels, ranging from 0% to 10.25%. Economic nexus thresholds (following South Dakota v. Wayfair) require out-of-state sellers to collect sales tax once they exceed a state's revenue or transaction threshold, typically $100,000 in sales or 200 transactions per year.

No state income tax: Alaska (AK), Florida (FL), Nevada (NV), New Hampshire (NH), South Dakota (SD), Tennessee (TN), Texas (TX), Washington (WA), Wyoming (WY)

Who uses this code?

Chiropractor

Provides spinal adjustment, wellness care, and rehabilitative therapy in an independent clinic.

Licenses
  • State chiropractic license
  • NPI number
  • Board certification
  • Malpractice insurance
Tax Forms
  • Schedule C or 1120-S
  • Schedule SE
  • Form 1040-ES
Physical Therapist (Private Practice)

Offers outpatient physical therapy, sports rehab, and post-surgical recovery services.

Licenses
  • State PT license
  • NPI number
  • Medicare enrollment (opt-out or enrolled)
  • Malpractice insurance
Tax Forms
  • Schedule C or 1120-S (PLLC)
  • Schedule SE
  • Form 1040-ES
Licensed Mental Health Counselor

Provides individual, couples, or family therapy sessions in private practice, in-person and via telehealth.

Licenses
  • State LPC/LMHC/LCSW license
  • NPI number
  • Malpractice insurance
  • HIPAA compliance
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
Travel Nurse / RN Contractor

Works short-term contracts at hospitals and clinics through staffing agencies or independently.

Licenses
  • State RN license (compact/multi-state)
  • BLS/ACLS certification
  • Malpractice insurance
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
  • Form 1099-NEC

Official data

Feature Description
Official name North American Industry Classification System (NAICS) 2017
Maintained by U.S. Census Bureau with North American statistical partners
Purpose Historical business classification used before the 2022 NAICS revision
Primary use Legacy filings, archived datasets, historical contract and census records
Status Retired for current federal use; preserved here for reverse lookup and comparison

When do you need NAICS 2017 code 423450?

1 Use NAICS 2017 code 423450 when an older report, grant file, or contract still cites this legacy edition.
2 Use it when reconciling historical business data with current NAICS 2022 classifications.
3 Use it when a state or local registry still stores older NAICS values and you need the modern equivalent.
4 Use it to compare how an industry definition changed between the 2017 and 2022 revisions.