Wenfei Wang, MD
NPI 1326578816 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wenfei Wang, MD is a Internal Medicine Physician provider in Chicago, IL (NPI 1326578816).
Provider details
- NPI number
- 1326578816
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 125070629 (IL)
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
9 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
495 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 167 | $35 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 56 | $122 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 55 | $234 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 52 | $124 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 42 | $74 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 68 | 31 |
| Dicyclomine Hcl | 46 | 28 |
| Budesonidebrand: Budesonide Dr | 26 | 14 |
| Pantoprazole Sodium | 24 | — |
| Famotidine | 20 | — |
| Linaclotidebrand: Linzess | 16 | — |
| Sucralfate | 15 | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-15
- Last updated
- 2017-06-15
Frequently asked questions
- What is Wenfei Wang's NPI number?
- Wenfei Wang's National Provider Identifier (NPI) is 1326578816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wenfei Wang's specialty?
- Wenfei Wang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Wenfei Wang located?
- Wenfei Wang's practice location on file with NPPES is 5841 S Maryland Ave Ste Mc7082, Chicago, IL 60637-1465.
- What is Wenfei Wang's phone number?
- The practice phone number listed in the NPPES registry for Wenfei Wang is (773) 795-0232.
- Does Wenfei Wang accept Medicare?
- Wenfei Wang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wenfei Wang's NPI active?
- Yes — Wenfei Wang's NPI (1326578816) is active in the NPPES registry as of the last update on 2017-06-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.