Lewis Tian, MD
NPI 1942769856 · Psychiatry Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lewis Tian, MD is a Psychiatry Physician provider in Saint Louis, MO (NPI 1942769856).
Provider details
- NPI number
- 1942769856
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2021039266 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 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
85 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 85 | $92 |
Typical Medicare-allowed amounts for these services range $92–$92 (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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 138 | 42 |
| Bupropion Hclbrand: Bupropion Xl | 122 | 26 |
| Quetiapine Fumarate | 107 | 19 |
| Aripiprazole | 104 | 21 |
| Hydroxyzine Hcl | 103 | 24 |
| Duloxetine Hcl | 98 | 17 |
| Mirtazapine |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-19
- Last updated
- 2023-12-12
- Certified
- 2023-12-12
Frequently asked questions
- What is Lewis Tian's NPI number?
- Lewis Tian's National Provider Identifier (NPI) is 1942769856, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lewis Tian's specialty?
- Lewis Tian is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Lewis Tian located?
- Lewis Tian's practice location on file with NPPES is 3309 S Kingshighway Blvd, Saint Louis, MO 63139-1101.
- What is Lewis Tian's phone number?
- The practice phone number listed in the NPPES registry for Lewis Tian is (314) 206-3700.
- Does Lewis Tian accept Medicare?
- Lewis Tian is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lewis Tian's NPI active?
- Yes — Lewis Tian's NPI (1942769856) is active in the NPPES registry as of the last update on 2023-12-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.