NPI Portal NPI Lookup & Verification

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Dr. Christopher Daniel James Romberg, MD

Gastroenterology Physician in Cameron Park, CA · enumerated 2006 · practices at Marshall Medical Center.

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

National Provider Identifier

1215096953

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Registry record

Entity type Individual (Type 1)
Name Dr. Christopher Daniel James Romberg
Credential MD
Sex Male
Practice address 3501 Palmer Dr Ste 201, Cameron Park, CA, 95682
Phone (530) 626-2611
Enumeration date Dec 8, 2006
Last updated in NPPES Aug 20, 2024

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License A909287 (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.

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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 Christopher Romberg?
Christopher Romberg is registered in NPPES with the primary taxonomy of Gastroenterology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-08-20.