Warren Steinberg, MD
NPI 1720113467 · Internal Medicine Physician · Westport, CT
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Warren Steinberg, MD is a Internal Medicine Physician provider in Westport, CT (NPI 1720113467).
Provider details
- NPI number
- 1720113467
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 20694 (CT)
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
19 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
1,458 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 | 446 | $90 |
| Insertion of Needle Into Vein (3 Years Or Older)36410 | 316 | $18 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 223 | $127 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 161 | $56 |
| Administration of Influenza Virus VaccineG0008 | 75 | $34 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 72 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 340 | 88 |
| Levothyroxine Sodium | 177 | 39 |
| Alprazolam | 107 | 22 |
| Losartan Potassium | 106 | 19 |
| Zolpidem Tartrate | 104 | 26 |
| Duloxetine Hcl | 102 | 20 |
| Lorazepam |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$78 across 4 records (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
- 2007-02-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is Warren Steinberg's NPI number?
- Warren Steinberg's National Provider Identifier (NPI) is 1720113467, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Warren Steinberg's specialty?
- Warren Steinberg is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Warren Steinberg located?
- Warren Steinberg's practice location on file with NPPES is 225 Main St, Westport, CT 06880-3216.
- What is Warren Steinberg's phone number?
- The practice phone number listed in the NPPES registry for Warren Steinberg is (203) 222-9533.
- Does Warren Steinberg accept Medicare?
- Warren Steinberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Warren Steinberg's NPI active?
- Yes — Warren Steinberg's NPI (1720113467) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.