Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Greg P. Muchnij X, CH
Chiropractor in Phoenix, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184689135
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Registry record
Entity type Individual (Type 1)
Name Dr. Greg P. Muchnij X
Credential CH
Sex Male
Practice address 4550 E Bell Rd, Ste.284, Phoenix, AZ, 85032
Phone (602) 866-3505
Fax (602) 866-2521
Enumeration date Apr 20, 2006
Last updated in NPPES Jan 10, 2008
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 118229 | Other | AZ | GROUP UPIN |
| 1114116936 | Other | AZ | GROUP NPI |
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.
Frequently asked questions
Where does Greg Muchnij practice?
The practice location on file with NPPES is in Phoenix, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Greg Muchnij?
The National Provider Identifier (NPI) for Greg Muchnij is 1184689135, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-10.