NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Jeffrey Jay Carls, MD

Family Medicine Physician in Lake Havasu City, AZ · enumerated 2006 · practices at Apex Diagnostic Services, Inc..

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

National Provider Identifier

1871511295

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Registry record

Entity type Individual (Type 1)
Name Mr. Jeffrey Jay Carls
Credential MD
Sex Male
Practice address 1720 Mesquite Ave, Suite 100, Lake Havasu City, AZ, 86403
Phone (928) 855-1550
Fax (928) 855-7229
Enumeration date Jul 17, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 12100 (AZ) 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
224593 Medicaid AZ -
0856320 Other AZ BCBS

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

Is NPI 1871511295 active?
Yes, as of the latest NPPES snapshot, NPI 1871511295 is active (record last updated 2007-07-08).
How do I verify Jeffrey Carls's NPI record?
Cross-check NPI 1871511295 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.