Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Martin M. Nielsen, MD

Individual provider Pulmonary Disease Physician · NPI 1760400550

Martin M. Nielsen, MD is a Pulmonary Disease Physician in Oceanside, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3231 Waring Ct Ste L
Oceanside, CA 92056-4510
Phone: (760) 758-7474
Fax: (760) 758-7362
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence G25528 (CA)

Record details

NPI number1760400550
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 18, 2006
Last updated in NPPESJuly 8, 2007

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