Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Savannah Leigh Sommerhalder, M.D.

Allergy & Immunology Physician in Cedar Park, TX · enumerated 2015.

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

National Provider Identifier

1407234347

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Registry record

Entity type Individual (Type 1)

Name Savannah Leigh Sommerhalder

Credential M.D.

Sex Female

Practice address 1335 E Whitestone Blvd Ste 120, Cedar Park, TX, 78613

Phone (512) 222-5856

Fax (855) 828-0878

Enumeration date May 12, 2015

Last updated in NPPES Apr 4, 2023

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License R8276 (TX) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License BP1-0053413 (TX) Secondary

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License R8276 (TX) 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.

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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 Savannah Sommerhalder?

Savannah Sommerhalder is registered in NPPES with the primary taxonomy of Allergy & Immunology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Haley Overstreet Allergy & Immunology Physician · Cedar Park, TX NPI 1700107323

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-04-04.