Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Hassaan Hasan Bashir, M.D.
Neurology Physician in Lawrence, MA · enumerated 2013.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255774162
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Registry record
Entity type Individual (Type 1)
Name Dr. Hassaan Hasan Bashir
Credential M.D.
Sex Male
Practice address 354 Merrimack St Ste 1, Lawrence, MA, 01843
Phone (978) 687-2321
Enumeration date Apr 10, 2013
Last updated in NPPES Mar 4, 2020
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 Hassaan Bashir?
The National Provider Identifier (NPI) for Hassaan Bashir is 1255774162, a Type 1 (individual) record in the CMS NPPES registry.
Where does Hassaan Bashir practice?
The practice location on file with NPPES is in Lawrence, MA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Michael Connelly Pain Medicine (Anesthesiology) Physician · Lawrence, MA NPI 1710987615 Elizardo Carandang Physical Medicine & Rehabilitation Physician · Lawrence, MA NPI 1477546224 Lanny Xue Neurology Physician · Lawrence, MA NPI 1720101843 Maosong Qi Rheumatology Physician · Lawrence, MA NPI 1831333608 Ethan Dionne Surgical Physician Assistant · Lawrence, MA NPI 1588013908 Robert Lapierre Surgical Physician Assistant · Lawrence, MA NPI 1760926653 Divya Shah Neurology Physician · Lawrence, MA NPI 1447786694 Benjamin Trachtman Neurology Physician · Lawrence, MA NPI 1528562758
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-04.