Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ryan Dale Muller, DC

Q: What is the NPI number for Ryan Muller?

The National Provider Identifier (NPI) for Ryan Muller is 1609581990, a Type 1 (individual) record in the CMS NPPES registry.

Chiropractor in West Haven, CT · enumerated 2023.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1609581990

Verified

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Registry record

Entity type Individual (Type 1)

Name Ryan Dale Muller

Credential DC

Sex Male

Practice address 950 Campbell Ave, West Haven, CT, 06516

Phone (203) 932-5711

Enumeration date Jan 20, 2023

Last updated in NPPES Jan 20, 2023

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 002280 (CT) Primary

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

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 → Validate an NPI →

Frequently asked questions

What is the NPI number for Ryan Muller?

The National Provider Identifier (NPI) for Ryan Muller is 1609581990, a Type 1 (individual) record in the CMS NPPES registry.

Where does Ryan Muller practice?

The practice location on file with NPPES is in West Haven, CT. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-20.