Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Karl Erwin Sanzenbacher, M.D.

Neurology Physician in Bangor, ME · enumerated 2006.

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

National Provider Identifier

1275566796

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Registry record

Entity type Individual (Type 1)

Name Dr. Karl Erwin Sanzenbacher

Credential M.D.

Sex Male

Practice address 489 State St, Eastern Maine Medical Center, Bangor, ME, 04401

Phone (207) 973-7360

Fax (207) 973-7362

Enumeration date Jul 8, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 006438 (ME) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Karl Sanzenbacher's NPI record?

Cross-check NPI 1275566796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1275566796 active?

Yes, as of the latest NPPES snapshot, NPI 1275566796 is active (record last updated 2007-07-08).

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