Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Catherine Mae Williams, NP, RN
Nurse Practitioner in Kalamazoo, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1295757623
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Registry record
Entity type Individual (Type 1)
Name Catherine Mae Williams
Credential NP, RN
Sex Female
Practice address 348 N Burdick St, Kalamazoo, MI, 49007
Phone (269) 343-1396
Fax (269) 382-8006
Enumeration date Jul 24, 2006
Last updated in NPPES May 24, 2017
Taxonomy & licenses
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4704117718 (MI) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4704117718 (MI) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP 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
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 Catherine Williams?
Catherine Williams is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Jeanette Meyer Hospice and Palliative Medicine (Internal Medicine) Physician · Kalamazoo, MI NPI 1184646515 Visiting Nurse & Hospice Services of Southwest Michigan Home Health Clinical Nurse Specialist · Kalamazoo, MI NPI 1124297403 Visiting Nurse & Hospice Services of Southwest Michigan Internal Medicine Physician · Kalamazoo, MI NPI 1952570236 Reverence Home Health and Hospice, Inc Durable Medical Equipment & Medical Supplies · Kalamazoo, MI NPI 1790039485 Christina Fink Clinical Social Worker · Kalamazoo, MI NPI 1225429061
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-24.