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Mark C. Nelson, MD, Inc

Orthopaedic Surgery of the Spine Physician in Lajolla, CA · enumerated 2007 · authorized official Mark Nelson, President.

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

National Provider Identifier

1811033590

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Registry record

Entity type Organization (Type 2)
Legal business name Mark C. Nelson, MD, Inc
Practice address 9834 Genesee Avenue, Suite 223, Lajolla, CA, 92037
Phone (858) 777-7917
Fax (858) 703-5048
Enumeration date Jan 29, 2007
Last updated in NPPES Feb 2, 2015

Taxonomy & classification

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License A80416 (CA) Primary

Authorized official

Name Mark Nelson
Title President
Phone (858) 571-0606

Other identifiers

Identifier Type State Issuer
WA80416B Other CA MEDICARE PROVIDER ID
W17893 Other CA MEDICARE PTAN
W17893 Other CA MEDICARE GROUP NUMBER

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

Where is Mark C. Nelson, MD, Inc located?
The practice location on file with NPPES is in Lajolla, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-02-02. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-02-02.