Thomas Stern, MD
NPI 1477592665 · Internal Medicine Physician · Winnetka, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Stern, MD is a Internal Medicine Physician provider in Winnetka, IL (NPI 1477592665).
Provider details
- NPI number
- 1477592665
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-068539 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,133 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 457 | $95 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 258 | $9 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 233 | $191 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 174 | $20 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 171 | $20 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 152 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 302 | 83 |
| Rosuvastatin Calcium | 135 | 43 |
| Lisinopril | 134 | 39 |
| Levothyroxine Sodium | 112 | 33 |
| Tamsulosin Hcl | 101 | 32 |
| Alprazolam | 95 | 30 |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-05
- Last updated
- 2016-12-14
Frequently asked questions
- What is Thomas Stern's NPI number?
- Thomas Stern's National Provider Identifier (NPI) is 1477592665, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Stern's specialty?
- Thomas Stern is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Stern located?
- Thomas Stern's practice location on file with NPPES is 525 Winnetka Ave, Winnetka, IL 60093-4050.
- What is Thomas Stern's phone number?
- The practice phone number listed in the NPPES registry for Thomas Stern is (847) 501-4060.
- Does Thomas Stern accept Medicare?
- Thomas Stern is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Stern's NPI active?
- Yes — Thomas Stern's NPI (1477592665) is active in the NPPES registry as of the last update on 2016-12-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.