NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas A Otter, MD

Orthopaedic Surgery Physician in Lewes, DE · enumerated 2005.

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

National Provider Identifier

1346240876

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Thomas A Otter
Credential MD
Sex Male
Practice address 17005 Old Orchard Rd, Lewes, DE, 19958
Phone (302) 644-3311
Fax (302) 644-3300
Enumeration date Jul 27, 2005
Last updated in NPPES Feb 15, 2019

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License C10008890 (DE) 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
510370286 Other DE PERDUE FARMS, INC.
4056337 Other DE AETNA US HEALTHCARE
510370286 Other - ONE NET PPO
264933 Other - UNISON HEALTH PLAN
510370286 Other DE DEVON HEALTH SERVICES
510370286 Other - UNITED HEALTHCARE
1346240876 Medicaid DE -
3692762000 Other DE AMERIHEALTH
510370286 Other - UNION LABOR LIFE INSURANCE COMPANY
1346240876 Other - COMMUNITY HEALTH PLAN
510370286 Other - PRIVATE HEALTHCARE SYSTEMS
510370286 Other - HEALTH NET FEDERAL SERVICES / TRICARE
1346240876 Other - NATIONAL CAPITAL PPO
510370286 Other - OPTIMUM CHOICE
510370286 Other - CORVEL CORPORATION
510370286 Other - EASTERN SUSSEX PHYSICIAN ORGANIZATION, P.A. (ESPO)
1346240876 Other - DELAWARE PHYSICIANS CARE, INC.
510370286 Other - BLUE CROSS BLUE SHIELD OF DELAWARE
1346240876 Other - CREENAGHT HEALTH PLAN
510370286 Other - MULTIPLAN, INC.

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

What is the NPI number for Thomas Otter?
The National Provider Identifier (NPI) for Thomas Otter is 1346240876, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Otter practice?
The practice location on file with NPPES is in Lewes, DE. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-15.