Zachary Treat, MD
NPI 1447743083 · Family Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zachary Treat, MD is a Family Medicine Physician provider in Saint Louis, MO (NPI 1447743083).
Provider details
- NPI number
- 1447743083
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 50495 (IA)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
806 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 | 351 | $73 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 170 | $109 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 159 | $105 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 84 | $158 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 26 | $120 |
| Critical Care, First 30-74 Minutes99291 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Potassium Chloride | 47 | 22 |
| Pantoprazole Sodium | 36 | 21 |
| Furosemide | 33 | 24 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 28 | 27 |
| Amlodipine Besylate | 25 | 18 |
| Empagliflozinbrand: Jardiance | 25 | 21 |
| Prednisone |
Practice location
Mailing address
Additional practice locations (3)
- 1400 US Highway 61Festus, MO 63028-4100Phone: (636) 933-5337
- 615 S New Ballas RdSaint Louis, MO 63141-8221Phone: (314) 251-6339
- 901 E 5th StWashington, MO 63090-3127Phone: (636) 239-8231
Registry dates
- Enumerated
- 2018-06-08
- Last updated
- 2026-01-19
- Certified
- 2026-01-19
Frequently asked questions
- What is Zachary Treat's NPI number?
- Zachary Treat's National Provider Identifier (NPI) is 1447743083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zachary Treat's specialty?
- Zachary Treat is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zachary Treat located?
- Zachary Treat's practice location on file with NPPES is 10010 Kennerly Rd, Saint Louis, MO 63128-2106.
- What is Zachary Treat's phone number?
- The practice phone number listed in the NPPES registry for Zachary Treat is (314) 525-1328.
- Does Zachary Treat accept Medicare?
- Zachary Treat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zachary Treat's NPI active?
- Yes — Zachary Treat's NPI (1447743083) is active in the NPPES registry as of the last update on 2026-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.