Leonid S. Grossman, MD

Medicare activity in 2024

Official CMS public-use data for Leonid S. Grossman, 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.

Most frequent services

1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)146 services
2. X-ray of shoulder, minimum of 2 views (73030)50 services
3. X-ray of wrist, minimum of 3 views (73110)32 services
4. X-ray of pelvis, minimum of 3 views (72190)30 services
5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)29 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 pressure73%
• High cholesterol67%
• Arthritis65%
• Depression42%
• Osteoporosis39%
• Chronic kidney disease35%

Hospitals where Leonid S. Grossman works

Medicare's Facility Affiliation Data lists Leonid S. Grossman 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.

• Centura Health-St Anthony HospitalLakewood, CO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 060015
• Saint Anthony Medical CenterRockford, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140233

Practice locations

Addresses where Leonid S. Grossman is enrolled with Medicare (CMS data updated October 2, 2026).

• 5875 E Riverside BlvdRockford, IL 61114 (815) 398‑9491
• 660 Golden Ridge Rd, Suite 250Golden, CO 80401 (303) 233‑1223

Group practices

Medicare enrollment lists Leonid S. Grossman as a member of these groups (CMS data updated October 2, 2026).

• Orthomidwest, PLLC547 clinicians in the group
• Panorama Orthopedics and Spine Center PC308 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in Illinois →

Other orthopedic surgeons in Rockford

Clinicians with the same Medicare primary specialty in Rockford, IL — not a recommendation.

• William Schneider, DO
• Andrew J. Blint, MD
• Oscar A. Anton, MD
• Brian Bear, MD
• Andreas J. Fischer, MD
• Scott Ferry, MD
• Sukhdeer Singh, DO
• Jeremiah Pflederer, MD

All orthopedic surgeons in Rockford →

Other clinicians in Orthomidwest, PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Xavier C. Simcock, MD
• Kathleen M. Frein
• Haley A. Simmons
• Brianna L. Japkowski
• Jennifer Santacaterina
• Amy L. Krolow, OT

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians