Joshua St. Louis
NPI 1437562121 · Family Medicine Physician · Lawrence, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua St. Louis is a Family Medicine Physician provider in Lawrence, MA (NPI 1437562121).
Provider details
- NPI number
- 1437562121
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 273183 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
55 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 42 | $77 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 13 | $80 |
Typical Medicare-allowed amounts for these services range $77–$80 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 52 | 14 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 43 | 11 |
| Dulaglutidebrand: Trulicity | 42 | — |
| Metformin Hcl | 40 | — |
| Amlodipine Besylate | 39 | 11 |
| Losartan Potassium | 38 | — |
Practice location
Mailing address
Additional practice locations (1)
- 55 Fruit StBoston, MA 02114-2621Phone: (617) 724-3874
Registry dates
- Enumerated
- 2014-06-10
- Last updated
- 2025-06-11
- Certified
- 2025-06-11
Frequently asked questions
- What is Joshua St. Louis's NPI number?
- Joshua St. Louis's National Provider Identifier (NPI) is 1437562121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua St. Louis's specialty?
- Joshua St. Louis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua St. Louis located?
- Joshua St. Louis's practice location on file with NPPES is 34 Haverhill St, Lawrence, MA 01841-2884.
- What is Joshua St. Louis's phone number?
- The practice phone number listed in the NPPES registry for Joshua St. Louis is (978) 686-0900.
- Does Joshua St. Louis accept Medicare?
- Joshua 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 Joshua St. Louis's NPI active?
- Yes — Joshua St. Louis's NPI (1437562121) is active in the NPPES registry as of the last update on 2025-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.