Quick answers
- Does Mario M. Robbins accept Medicare assignment?
- Yes. Medicare's clinician data says Mario M. Robbins accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Mario M. Robbins see?
- In 2024, CMS data shows 458 Original Medicare patients and 4,428 services for Mario M. Robbins. This counts Original Medicare only and measures volume, not quality.
- What is Mario M. Robbins's NPI number?
- 1538151717. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Mario M. Robbins, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 458 |
|---|---|
| Services billed to Medicare | 4,428 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 61 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)2,960 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)626 services
- Hospital discharge day management, more than 30 minutes (99239)428 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)184 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)108 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- Anxiety75%
- Depression74%
- High cholesterol62%
- Arthritis41%
- Alzheimer's disease or dementia40%
Hospitals where Mario M. Robbins works
Medicare's Facility Affiliation Data lists Mario M. Robbins at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Community HospitalMunster, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150125
- St Catherine Hospital IncEast Chicago, IN · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 150008
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034
Practice locations
Addresses where Mario M. Robbins is enrolled with Medicare (CMS data updated October 2, 2026).
- 3903 E Lincoln HwyMerrillville, IN 46410 (219) 940‑9466
- 3903 E Lincoln Hwy US30Merrillville, IN 46410
- 417 S Whitlock StBremen, IN 46506 (574) 546‑3830
- 4320 Fir St, Unit 211East Chicago, IN 46312 (219) 703‑2577
- 9330 BroadwayCrown Point, IN 46307 (219) 648‑2400
Group practices
Medicare enrollment lists Mario M. Robbins as a member of these groups (CMS data updated October 2, 2026).
- 219 Health Network Inc69 clinicians in the group
- Aims LLC8 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Merrillville
Clinicians with the same Medicare primary specialty in Merrillville, IN — not a recommendation.
Other clinicians in 219 Health Network Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Chicago College Of Osteopathy |
| Graduation year | 1999 (27 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538151717 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians