Individual provider · Type 1 NPI

Dennis W. Nielson, MD

Pediatric Pulmonology Physician · San Francisco, CA

NPI number 1801850706 Active

Practice location

400 Parnassus Ave, 2nd Floor
San Francisco, CA 94143-2202

Call (415) 353-2113 Map

Fax (415) 476-9278

Mailing address

1635 Divisadero St., Ste. 625, Box 1821
San Francisco, CA 94143-0001

Specialties and licenses

TaxonomyCodeLicense
Pediatrics Physician 208000000XG35081 (CA)
Pediatric Pulmonology Physician Primary 2080P0214XG35081 (CA)

Pediatric Pulmonology Physician: A pediatrician dedicated to the prevention and treatment of all respiratory diseases affecting infants, children and young adults. This specialist is knowledgeable about the growth and development of the lung, assessment of respiratory function in infants and children, and experienced in a variety of invasive and noninvasive diagnostic techniques.

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About NPI 1801850706

Dennis W. Nielson, MD's National Provider Identifier is 1801850706, issued on Apr 17, 2006. The primary taxonomy on file is Pediatric Pulmonology Physician (2080P0214X), and the practice location is in San Francisco, CA. The record was last updated on Jul 13, 2026.