Dr. Ryan Jeffery Mayeda, D.C.

Dr. Ryan Jeffery Mayeda is a Chiropractor provider (Chiropractor) practicing in Greeley, CO, registered in the NPPES registry with NPI 1992859821 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Ryan J Mayeda LLC (listed at the same practice address in NPPES).

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1992859821
Entity type	Individual (Type 1)
Name	Dr. Ryan Jeffery Mayeda
Credential	D.C.
Sex	Male
Practice address	Greeley, CO, 80634
Phone	9736737879
Enumeration date	2007-01-22
Last updated in NPPES	2018-07-31

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	5906	CO

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details

Provider: Ryan Mayeda, D.C.
NPI: 1992859821
Taxonomy: 111N00000X (Chiropractor)
Address: Greeley, CO, 80634

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1912489600	Ryan J Mayeda LLC	Organization	Chiropractor	Greeley, CO

Verify this record

Cross-check NPI 1992859821 against the authoritative CMS record: view Dr. Ryan Jeffery Mayeda on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Ryan Mayeda?

Ryan Mayeda is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2018-07-31.