Hayley Mertz, COTA/L
NPI 1437489887 · Occupational Therapy Assistant · Saint Louis, MO
Hayley Mertz, COTA/L is a Occupational Therapy Assistant provider in Saint Louis, MO (NPI 1437489887).
Provider details
- NPI number
- 1437489887
- Entity type
- Individual
- Primary specialty
- Occupational Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- COTA/L
- Sex
- Female
- Sole proprietor
- No
- License
- 2009030135 (MO)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-01-07
- Last updated
- 2010-01-07
Frequently asked questions
- What is Hayley Mertz's NPI number?
- Hayley Mertz's National Provider Identifier (NPI) is 1437489887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Hayley Mertz's specialty?
- Hayley Mertz is listed in the NPPES registry with a primary specialty of Occupational Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Hayley Mertz located?
- Hayley Mertz's practice location on file with NPPES is 3625 Magnolia Ave, Saint Louis, MO 63110-4048.
- What is Hayley Mertz's phone number?
- The practice phone number listed in the NPPES registry for Hayley Mertz is (314) 771-2990.
- Is Hayley Mertz's NPI active?
- Yes — Hayley Mertz's NPI (1437489887) is active in the NPPES registry as of the last update on 2010-01-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.