NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen J Ackerman, MD

Clinical Cardiac Electrophysiology Physician in Lincoln, NE · enumerated 2006.

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

National Provider Identifier

1538149257

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Stephen J Ackerman
Credential MD
Sex Male
Practice address 7440 S 91st St, Lincoln, NE, 68526
Fax (402) 328-3770
Enumeration date Jan 19, 2006
Last updated in NPPES Oct 17, 2012

Taxonomy & licenses

207RC0001X Clinical Cardiac Electrophysiology Physician Allopathic & Osteopathic Physicians · License 21011 (NE) Primary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License 21011 (NE) Secondary
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
10026072400 Medicaid NE -
47070592300 Medicaid NE -
47070592305 Medicaid NE -
10026072500 Medicaid NE -
10026072200 Medicaid NE -
10026072300 Medicaid NE -
10026072600 Medicaid NE -
47070592302 Medicaid NE -
O537043 Medicaid IA -
100350900A Medicaid NE -
10026072000 Medicaid NE -
47070592301 Medicaid NE -
47070592306 Medicaid NE -
47070592313 Medicaid NE -

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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Stephen Ackerman?
Stephen Ackerman is registered in NPPES with the primary taxonomy of Clinical Cardiac Electrophysiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-17.