Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Chamberlain, PA
Physician Assistant in Hamden, CT · enumerated 2026.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588522742
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Registry record
Entity type Individual (Type 1)
Name Mark Chamberlain
Credential PA
Sex Male
Practice address 1650 Dixwell Ave, Hamden, CT, 06514
Phone (203) 288-1700
Enumeration date Jan 14, 2026
Last updated in NPPES Jan 14, 2026
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 7438 (CT) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA 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
How do I verify Mark Chamberlain's NPI record?
Cross-check NPI 1588522742 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1588522742 active?
Yes, as of the latest NPPES snapshot, NPI 1588522742 is active (record last updated 2026-01-14).
Other providers at this practice address
Browse all → Ayesha Chaudhry Internal Medicine Physician · Hamden, CT NPI 1841450657 Chaudhry Medical Group, PC. Internal Medicine Physician · Hamden, CT NPI 1063852275 Eric Black Medical Physician Assistant · Hamden, CT NPI 1962874792 Pioneer Rehab LLC Physical Therapist · Hamden, CT NPI 1164970489 Jordan Brown Physician Assistant · Hamden, CT NPI 1396217675 Jason Lorch Physician Assistant · Hamden, CT NPI 1588123053 Elizabeth Cerezo Physician Assistant · Hamden, CT NPI 1447832266
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-14.