Marissa Caruso, ACNP
NPI 1134719610 · Acute Care Nurse Practitioner · Saint Louis, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Caruso, ACNP is a Acute Care Nurse Practitioner provider in Saint Louis, MO (NPI 1134719610).
Provider details
- NPI number
- 1134719610
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ACNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2021013049 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
5 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
389 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) |
|---|---|---|
| Critical Care, Each Additional 30 Minutes99292 | 354 | $87 |
| Critical Care, First 30-74 Minutes99291 | 35 | $173 |
Typical Medicare-allowed amounts for these services range $87–$173 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-01-19
- Last updated
- 2025-04-15
- Certified
- 2021-04-12
Frequently asked questions
- What is Marissa Caruso's NPI number?
- Marissa Caruso's National Provider Identifier (NPI) is 1134719610, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Caruso's specialty?
- Marissa Caruso is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marissa Caruso located?
- Marissa Caruso's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Marissa Caruso's phone number?
- The practice phone number listed in the NPPES registry for Marissa Caruso is (800) 862-9980.
- Does Marissa Caruso accept Medicare?
- Marissa Caruso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Caruso's NPI active?
- Yes — Marissa Caruso's NPI (1134719610) is active in the NPPES registry as of the last update on 2025-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.