Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Maxine Margaret Kniffi, RN, MSN
Registered Nurse in Penn Yan, NY · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003113911
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Registry record
Entity type Individual (Type 1)
Name Maxine Margaret Kniffi
Credential RN, MSN
Sex Female
Practice address 3773 Route 364, Penn Yan, NY, 14527
Phone (607) 595-2857
Enumeration date Feb 12, 2011
Last updated in NPPES Feb 12, 2011
Taxonomy & licenses
163WC3500X Cardiac Rehabilitation Registered Nurse Nursing Service Providers · License 415955 (NY) Secondary
163WM0705X Medical-Surgical Registered Nurse Nursing Service Providers · License 415955 (NY) Secondary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| MMK6446 | Medicaid | NY | - |
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 Maxine Kniffi?
Maxine Kniffi is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-12.