Ossama Zorub, M.D.
NPI 1891769303 · Hospitalist Physician · Michigan City, IN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ossama Zorub, M.D. is a Hospitalist Physician provider in Michigan City, IN (NPI 1891769303).
Provider details
- NPI number
- 1891769303
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036-092465 (IL)
Specialties & taxonomies
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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,405 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 | 537 | $132 |
| Insertion of Needle Into Vein (3 Years Or Older)36410 | 241 | $18 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 195 | $59 |
| Chronic Care Management Services for Two Or More Chronic Conditions, Additional 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99439 | 94 | $49 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 87 | $64 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 160 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 494 | 100 |
| Metformin Hcl | 375 | 80 |
| Amlodipine Besylate | 362 | 79 |
| Omeprazole | 292 | 73 |
| Levothyroxine Sodium | 275 | 45 |
| Pioglitazone Hcl | 248 | 58 |
| Lisinopril | 226 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$359 across 19 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 (2)
- 3550 E 118th StChicago, IL 60617-7314Phone: (773) 646-9800Fax: (773) 646-9801
- 1201 S Main StreetCrown Point, IN 46307-7314Phone: (219) 757-6104
Registry dates
- Enumerated
- 2006-02-14
- Last updated
- 2019-10-01
Frequently asked questions
- What is Ossama Zorub's NPI number?
- Ossama Zorub's National Provider Identifier (NPI) is 1891769303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ossama Zorub's specialty?
- Ossama Zorub is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Ossama Zorub located?
- Ossama Zorub's practice location on file with NPPES is 3500 Franciscan Way, Michigan City, IN 46360.
- What is Ossama Zorub's phone number?
- The practice phone number listed in the NPPES registry for Ossama Zorub is (219) 879-8511.
- Does Ossama Zorub accept Medicare?
- Ossama Zorub is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ossama Zorub's NPI active?
- Yes — Ossama Zorub's NPI (1891769303) is active in the NPPES registry as of the last update on 2019-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.