Mark Treger, M.D.
NPI 1821368242 · Obstetrics & Gynecology Physician · Carlsbad, CA
Mark Treger, M.D. is a Obstetrics & Gynecology Physician provider in Carlsbad, CA (NPI 1821368242).
Provider details
- NPI number
- 1821368242
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- GFE9142 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-01-02
- Last updated
- 2012-01-02
Frequently asked questions
- What is Mark Treger's NPI number?
- Mark Treger's National Provider Identifier (NPI) is 1821368242, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Treger's specialty?
- Mark Treger is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Treger located?
- Mark Treger's practice location on file with NPPES is 1331 Alcyon Ct, Carlsbad, CA 92011-4880.
- What is Mark Treger's phone number?
- The practice phone number listed in the NPPES registry for Mark Treger is (760) 931-9999.
- Is Mark Treger's NPI active?
- Yes — Mark Treger's NPI (1821368242) is active in the NPPES registry as of the last update on 2012-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.