Adam Stein, M.D.
NPI 1962667956 · Gastroenterology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Stein, M.D. is a Gastroenterology Physician provider in Chicago, IL (NPI 1962667956).
Provider details
- NPI number
- 1962667956
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125052873 (IL)
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 tenure25% of score
18 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
335 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 79 | $103 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 54 | $70 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 39 | $70 |
| Telephone Medical Discussion With Physician, 5-10 Minutes99441 | 38 | $37 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 32 | $269 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| 0.9 % Sodium Chloridebrand: Sodium Chloride | 156 | 13 |
| Famotidine | 97 | — |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 96 | 81 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 82 | 19 |
| Loperamide Hclbrand: Loperamide | 73 | 12 |
| Omeprazole | 61 | 18 |
| Linaclotidebrand: Linzess |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$67,673 across 51 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
- 2008-07-19
- Last updated
- 2014-07-31
Frequently asked questions
- What is Adam Stein's NPI number?
- Adam Stein's National Provider Identifier (NPI) is 1962667956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Stein's specialty?
- Adam Stein is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Stein located?
- Adam Stein's practice location on file with NPPES is 676 N Saint Clair St, Chicago, IL 60611-2927.
- What is Adam Stein's phone number?
- The practice phone number listed in the NPPES registry for Adam Stein is (312) 926-2000.
- Does Adam Stein accept Medicare?
- Adam Stein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Stein's NPI active?
- Yes — Adam Stein's NPI (1962667956) is active in the NPPES registry as of the last update on 2014-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.