William Dean Ryckman, D.C.

William Dean Ryckman is a Chiropractor provider (Chiropractor) practicing in Flint, MI, registered in the NPPES registry with NPI 1447393269 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1447393269
Entity type	Individual (Type 1)
Name	William Dean Ryckman
Credential	D.C.
Sex	Male
Practice address	Flint, MI, 48507
Phone	8107330310
Fax	8107335554
Enumeration date	2007-02-14
Last updated in NPPES	2007-07-08

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	2301004058	MI

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

Copy-ready billing details

Provider: William Ryckman, D.C.
NPI: 1447393269
Taxonomy: 111N00000X (Chiropractor)
Address: Flint, MI, 48507

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1205984457	Ramesh Chheda	Individual	Primary Care Clinic/Center	Flint, MI
1003095456	Ryckman Chiropractic PC	Organization	Chiropractor	Flint, MI
1659547099	Balvant K Ganatra MD PC	Organization	Gastroenterology Physician	Flint, MI
1578962882	Comprehensive Pain Specialists, Pllc	Organization	Clinical Medical Laboratory	Flint, MI
1992236061	Ryckman Chiropractic Clinic PC	Organization	Chiropractor	Flint, MI
1396271995	Macdonald Chiropractic Clinic PC	Organization	Chiropractor	Flint, MI

Verify this record

Cross-check NPI 1447393269 against the authoritative CMS record: view William Dean Ryckman 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 William Ryckman?

William Ryckman 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 2026-07-11. Provider record last updated 2007-07-08.