Marsha Mertens, M.D.
NPI 1902870025 · Family Medicine Physician · Saint Louis, MO
Marsha Mertens, M.D. is a Family Medicine Physician provider in Saint Louis, MO (NPI 1902870025).
Provider details
- NPI number
- 1902870025
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- R5E95 (MO)
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
20 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
- 2006-02-15
- Last updated
- 2011-10-15
Frequently asked questions
- What is Marsha Mertens's NPI number?
- Marsha Mertens's National Provider Identifier (NPI) is 1902870025, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Mertens's specialty?
- Marsha Mertens is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marsha Mertens located?
- Marsha Mertens's practice location on file with NPPES is 12680 Olive Blvd, Saint Louis, MO 63141-6322.
- What is Marsha Mertens's phone number?
- The practice phone number listed in the NPPES registry for Marsha Mertens is (314) 251-8888.
- Is Marsha Mertens's NPI active?
- Yes — Marsha Mertens's NPI (1902870025) is active in the NPPES registry as of the last update on 2011-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.