Nathan St. Louis, B.S
NPI 1528422219 · Acute Care Nurse Practitioner · Meriden, CT
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan St. Louis, B.S is a Acute Care Nurse Practitioner provider in Meriden, CT (NPI 1528422219).
Provider details
- NPI number
- 1528422219
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- B.S
- Sex
- Male
- Sole proprietor
- No
- License
- 12.006637 (CT)
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
10 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
91 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, First 30-74 Minutes99291 | 72 | $185 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 19 | $43 |
Typical Medicare-allowed amounts for these services range $43–$185 (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
- 2016-04-08
- Last updated
- 2016-10-03
Frequently asked questions
- What is Nathan St. Louis's NPI number?
- Nathan St. Louis's National Provider Identifier (NPI) is 1528422219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan St. Louis's specialty?
- Nathan St. Louis is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nathan St. Louis located?
- Nathan St. Louis's practice location on file with NPPES is 435 Lewis Ave, Meriden, CT 06451-2101.
- What is Nathan St. Louis's phone number?
- The practice phone number listed in the NPPES registry for Nathan St. Louis is (203) 694-8200.
- Does Nathan St. Louis accept Medicare?
- Nathan St. Louis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan St. Louis's NPI active?
- Yes — Nathan St. Louis's NPI (1528422219) is active in the NPPES registry as of the last update on 2016-10-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.