Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Carl Hashem, MD
Hospitalist Physician in Boston, MA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477139558
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Registry record
Entity type Individual (Type 1)
Name Carl Hashem
Credential MD
Sex Male
Practice address 725 Albany St, Boston, MA, 02118
Phone (617) 414-5951
Enumeration date Mar 20, 2021
Last updated in NPPES May 16, 2024
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care 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 is the NPI number for Carl Hashem?
The National Provider Identifier (NPI) for Carl Hashem is 1477139558, a Type 1 (individual) record in the CMS NPPES registry.
Where does Carl Hashem practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-16.