NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carl Marcus Lieberman, MD

Specialist in Framingham, MA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1558457697

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Registry record

Entity type Individual (Type 1)
Name Dr. Carl Marcus Lieberman
Credential MD
Sex Male
Practice address 61 Lincoln St, Suite 207, Framingham, MA, 01702
Fax (508) 875-9349
Enumeration date Oct 5, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 32268 (MA) Primary
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
1000557 Other MA EVERCARE
82886 Other MA USHC
19554 Other MA HARVARD PILGRIM MILF IPA
4497 Other MA FALLON SELECT/DIRECT
0017054 Other MA NEIGHBORHOOD HEALTH
20000000209 Other MA HARVARD PILGRIM MWMC IPA
709276 Other MA TUFTS
0151602 Medicaid MA -
B18142 Other MA BLUE CROSS BLUE SHEILD
1000015 Other MA UNITED HEALTHCARE
23511 Other MA CHILDRENS MEDICAL SECURIT

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.

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Frequently asked questions

Is NPI 1558457697 active?
Yes, as of the latest NPPES snapshot, NPI 1558457697 is active (record last updated 2007-07-08).
How do I verify Carl Lieberman's NPI record?
Cross-check NPI 1558457697 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.