Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Charles L Knoll, MD
Urology Physician in New York, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932123486
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Registry record
Entity type Individual (Type 1)
Name Dr. Charles L Knoll
Credential MD
Sex Male
Practice address 461 Park Ave S, 5th Floor, New York, NY, 10016
Phone (212) 679-6464
Fax (212) 679-6872
Enumeration date Jul 27, 2006
Last updated in NPPES Oct 29, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 is the NPI number for Charles Knoll?
The National Provider Identifier (NPI) for Charles Knoll is 1932123486, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles Knoll practice?
The practice location on file with NPPES is in New York, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Ron Bakal Urology Physician · New York, NY NPI 1477579639 Farshad Shafizadeh Urology Physician · New York, NY NPI 1003911132 Farshad Shafizadeh, M.D., P.C. Urology Physician · New York, NY NPI 1881799906 Park Urologic, PC Urology Physician · New York, NY NPI 1518035401 Ron Bakal MD PC Urology Physician · New York, NY NPI 1366594608 Premier Physical Therapy and Wellness, PC Physical Therapist · New York, NY NPI 1174719520 Manhattan Medical Billing Ambulatory Surgical Clinic/Center · New York, NY NPI 1114159951 Manhattan Surgical Management Gynecology Physician · New York, NY NPI 1811129661
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-29.