Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Ryan Drizen, DC
Chiropractor in Stow, MA · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1184485237
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Registry record
Entity type Individual (Type 1)
Name Dr. Ryan Drizen
Credential DC
Sex Male
Practice address 118 Great Rd, Stow, MA, 01775
Phone (978) 897-1770
Fax (978) 897-1715
Enumeration date Jan 17, 2024
Last updated in NPPES Nov 6, 2025
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
Where does Ryan Drizen practice?
The practice location on file with NPPES is in Stow, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Ryan Drizen?
The National Provider Identifier (NPI) for Ryan Drizen is 1184485237, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Margaret Klepacz General Practice Dentistry · Stow, MA NPI 1073572517 Todd Whittemore Chiropractor · Stow, MA NPI 1447304225 The Whittemore Group, Inc. Chiropractor · Stow, MA NPI 1164634481 Margaret Klepacz DDS PC Dental Clinic/Center · Stow, MA NPI 1649449174 Meredith Bianchi Occupational Therapist · Stow, MA NPI 1568217768 Olivia Bernas Occupational Therapist · Stow, MA NPI 1295686939 Amanda Ciulla Speech-Language Pathologist · Stow, MA NPI 1780528083
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-06.