Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Peggy Ellen Warren, MD
Psychiatry Physician in Waban, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1083633093
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Registry record
Entity type Individual (Type 1)
Name Dr. Peggy Ellen Warren
Credential MD
Sex Female
Practice address 40 Windsor Road, Waban, MA, 02468
Phone (617) 964-3506
Fax (617) 964-9598
Enumeration date Jul 19, 2006
Last updated in NPPES Jul 8, 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
Where does Peggy Warren practice?
The practice location on file with NPPES is in Waban, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Peggy Warren?
The National Provider Identifier (NPI) for Peggy Warren is 1083633093, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.