Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Abigail Hart Waldman, MD
Dermatology Physician in Boston, MA · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1598054926
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Registry record
Entity type Individual (Type 1)
Name Dr. Abigail Hart Waldman
Credential MD
Sex Female
Practice address 1153 Centre St, Suite 4j, Boston, MA, 02130
Phone (617) 983-4626
Fax (617) 983-4504
Enumeration date Apr 6, 2011
Last updated in NPPES Mar 13, 2026
Taxonomy & licenses
207ND0101X MOHS-Micrographic Surgery Physician Allopathic & Osteopathic Physicians · License 265614 (MA) Secondary
207ND0900X Dermatopathology Physician Allopathic & Osteopathic Physicians · License 265614 (MA) Secondary
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 specialty is Abigail Waldman?
Abigail Waldman is registered in NPPES with the primary taxonomy of Dermatology 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
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-03-13.