Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Heather Chalfin
Urology Physician in Frederick, MD · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1750652152
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Registry record
Entity type Individual (Type 1)
Name Heather Chalfin
Sex Female
Practice address 1562 Opossumtown Pike Fl 3, Frederick, MD, 21702
Phone (301) 663-4774
Fax (301) 695-1364
Enumeration date Jan 18, 2012
Last updated in NPPES May 19, 2021
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
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 specialty is Heather Chalfin?
Heather Chalfin is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-19.