Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Catherine Lager, MD
Psychiatry Physician in Newton, MA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1124061577
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Registry record
Entity type Individual (Type 1)
Name Dr. Catherine Lager
Credential MD
Sex Female
Practice address 303 Highland Ave, Newton, MA, 02465
Phone (617) 492-3500
Enumeration date Jun 14, 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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 0102636 | Medicaid | MA | - |
| J22352 | Other | MA | BLUE CROSS BLUE SHIELD |
| 153501 | Other | MA | TUFTS HEALTHPLAN |
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
Is NPI 1124061577 active?
Yes, as of the latest NPPES snapshot, NPI 1124061577 is active (record last updated 2007-07-08).
How do I verify Catherine Lager's NPI record?
Cross-check NPI 1124061577 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.