Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael Leff, DC
Chiropractor in Scottsdale, AZ · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1578995650
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Registry record
Entity type Individual (Type 1)
Name Dr. Michael Leff
Credential DC
Sex Male
Practice address 9819 N 95th St, Suite 101, Scottsdale, AZ, 85258
Phone (480) 663-6262
Fax (480) 663-6264
Enumeration date Jul 31, 2013
Last updated in NPPES Jul 31, 2013
Taxonomy & licenses
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.
Frequently asked questions
What specialty is Michael Leff?
Michael Leff 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.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-07-31.