Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Theodora J Nelson, MD

Developmental - Behavioral Pediatrics Physician in San Diego, CA · enumerated 2006.

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

National Provider Identifier

1326130584

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Theodora J Nelson

Credential MD

Sex Female

Practice address 7910 Frost St Ste 230, San Diego, CA, 92123

Phone (858) 246-0053

Fax (619) 496-9257

Enumeration date Sep 28, 2006

Last updated in NPPES Apr 17, 2020

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License G75021 (CA) Secondary

2080P0006X Developmental - Behavioral Pediatrics Physician Allopathic & Osteopathic Physicians · License G75021 (CA) 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

What specialty is Theodora Nelson?

Theodora Nelson is registered in NPPES with the primary taxonomy of Developmental - Behavioral Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

Browse all →

Jesica Liu Developmental - Behavioral Pediatrics Physician · San Diego, CA NPI 1184157620 Diana Alzate Genetic Counselor (M.S.) · San Diego, CA NPI 1346015435

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-17.