Marissa Merritt, MS, OTR/L
NPI 1811408982 · Occupational Therapist · Chicago, IL
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Merritt, MS, OTR/L is a Occupational Therapist provider in Chicago, IL (NPI 1811408982).
Provider details
- NPI number
- 1811408982
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- MS, OTR/L
- Sex
- Female
- Sole proprietor
- No
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 tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,640 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Therapy Procedure Using Functional Activities97530 | 740 | $30 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 569 | $21 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 500 | $26 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 393 | $20 |
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 276 | $23 |
| Therapy Procedure in a Group Setting97150 | 114 | $13 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-10-17
- Last updated
- 2017-10-17
Frequently asked questions
- What is Marissa Merritt's NPI number?
- Marissa Merritt's National Provider Identifier (NPI) is 1811408982, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Merritt's specialty?
- Marissa Merritt is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Marissa Merritt located?
- Marissa Merritt's practice location on file with NPPES is 1969 W Ogden Ave, Chicago, IL 60612-3765.
- What is Marissa Merritt's phone number?
- The practice phone number listed in the NPPES registry for Marissa Merritt is (312) 864-6000.
- Does Marissa Merritt accept Medicare?
- Marissa Merritt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Merritt's NPI active?
- Yes — Marissa Merritt's NPI (1811408982) is active in the NPPES registry as of the last update on 2017-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.