Stuart Adler, M.D.
NPI 1801819487 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stuart Adler, M.D. is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1801819487).
Provider details
- NPI number
- 1801819487
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- R1F22 (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
19 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
149 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 | 89 | $122 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Interpretation and Report95251 | 36 | $33 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 24 | $87 |
Typical Medicare-allowed amounts for these services range $33–$122 (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 |
|---|---|---|
| Levothyroxine Sodium | 114 | 42 |
| Empagliflozinbrand: Jardiance | 94 | 36 |
| Metformin Hclbrand: Metformin Hcl Er | 72 | 36 |
| Glimepiride | 63 | 31 |
| Semaglutidebrand: Ozempic | 63 | 20 |
| Atorvastatin Calcium | 54 | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-25
- Last updated
- 2014-01-02
Frequently asked questions
- What is Stuart Adler's NPI number?
- Stuart Adler's National Provider Identifier (NPI) is 1801819487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stuart Adler's specialty?
- Stuart Adler is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stuart Adler located?
- Stuart Adler's practice location on file with NPPES is 11155 Dunn Rd, Saint Louis, MO 63136-6150.
- What is Stuart Adler's phone number?
- The practice phone number listed in the NPPES registry for Stuart Adler is (314) 355-3175.
- Does Stuart Adler accept Medicare?
- Stuart Adler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stuart Adler's NPI active?
- Yes — Stuart Adler's NPI (1801819487) is active in the NPPES registry as of the last update on 2014-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.