Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Frank G Nisenfeld, M.D.
Specialist in Frederick, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1952371841
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Registry record
Entity type Individual (Type 1)
Name Dr. Frank G Nisenfeld
Credential M.D.
Sex Male
Practice address 86 Thomas Johnson Ct, Frederick, MD, 21702
Phone (301) 694-8311
Fax (301) 694-3537
Enumeration date Jan 24, 2006
Last updated in NPPES Dec 18, 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
Is NPI 1952371841 active?
Yes, as of the latest NPPES snapshot, NPI 1952371841 is active (record last updated 2007-12-18).
How do I verify Frank Nisenfeld's NPI record?
Cross-check NPI 1952371841 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Michael Kennedy Surgical Physician Assistant · Frederick, MD NPI 1972599678 Rachael Tallerico Physical Therapist · Frederick, MD NPI 1376531145 Nisenfeld & Chilton, M.D., P.A. Specialist · Frederick, MD NPI 1588634570 Mark Chilton Specialist · Frederick, MD NPI 1689644072 Kristin Silon Orthopaedic Surgery Physician · Frederick, MD NPI 1376513804 Neeti Bhargava Rheumatology Physician · Frederick, MD NPI 1588634018 Enrico Villanueva Specialist · Frederick, MD NPI 1376513812 Zinon Pappas Pain Medicine Physician · Frederick, MD NPI 1689645855
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-18.