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

Individual provider Obstetrics & Gynecology Physician · NPI 1821368242

Dr. Mark Alan Treger, MD is an Obstetrics & Gynecology Physician in Carlsbad, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2012
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

1331 Alcyon Ct
Carlsbad, CA 92011-4880
Phone: (760) 931-9999
Fax: (760) 931-9999
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Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence GFE9142 (CA)

Record details

NPI number1821368242
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 2, 2012
Last updated in NPPESJanuary 2, 2012
Mailing address1331 Alcyon Ct, Carlsbad, CA 92011-4880

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