Youshay Humayun, M.D.
NPI 1093010423 · Hospitalist Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Youshay Humayun, M.D. is a Hospitalist Physician provider in Chicago, IL (NPI 1093010423).
Provider details
- NPI number
- 1093010423
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125054777 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,924 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 1,949 | $122 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 302 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 271 | $132 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 192 | $178 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 68 | $94 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Carvedilol | 82 | 28 |
| Losartan Potassium | 79 | 34 |
| Torsemide | 58 | 12 |
| Amlodipine Besylate | 53 | 24 |
| Nifedipinebrand: Nifedipine Er | 53 | 12 |
| Furosemide | 49 | 12 |
| Atorvastatin Calcium | 49 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$82 across 3 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
Additional practice locations (1)
- 5145 N California AveChicago, IL 60625-3687Phone: (177) 387-8820
Registry dates
- Enumerated
- 2011-01-15
- Last updated
- 2025-06-05
- Certified
- 2025-06-05
Frequently asked questions
- What is Youshay Humayun's NPI number?
- Youshay Humayun's National Provider Identifier (NPI) is 1093010423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Youshay Humayun's specialty?
- Youshay Humayun is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Youshay Humayun located?
- Youshay Humayun's practice location on file with NPPES is 5140 N California Ave, Chicago, IL 60625.
- What is Youshay Humayun's phone number?
- The practice phone number listed in the NPPES registry for Youshay Humayun is (773) 784-2101.
- Does Youshay Humayun accept Medicare?
- Youshay Humayun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Youshay Humayun's NPI active?
- Yes — Youshay Humayun's NPI (1093010423) is active in the NPPES registry as of the last update on 2025-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.