Quick answers
- Does Richard S. Rock accept Medicare assignment?
- Yes. Medicare's clinician data says Richard S. Rock 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 Richard S. Rock see?
- In 2024, CMS data shows 497 Original Medicare patients and 1,674 services for Richard S. Rock. This counts Original Medicare only and measures volume, not quality.
- What is Richard S. Rock's NPI number?
- 1609984830. 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 Richard S. Rock, 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 | 497 |
|---|---|
| Services billed to Medicare | 1,674 |
| Different services or procedures | 11 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Stool analysis for blood, by fecal hemoglobin determination by immunoassay (82274)350 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)316 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)257 services
- Dxa bone density measurement of hip, pelvis, spine (77080)202 services
- Insertion of needle into vein for collection of blood sample (36415)189 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 cholesterol66%
- Arthritis46%
- High blood pressure41%
- Anxiety21%
- Depression15%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)12%
Hospitals where Richard S. Rock works
Medicare's Facility Affiliation Data lists Richard S. Rock 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.
- Northshore University Healthsystem - Evanston HospitalEvanston, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140010
- Northwest Community Hospital 1Arlington Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140252
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116
Practice locations
Addresses where Richard S. Rock is enrolled with Medicare (CMS data updated October 2, 2026).
- 2101 Waukegan Rd, Suite 301Bannockburn, IL 60015
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | R Franklin University Of Med & Sci/chicago Medical School |
| Graduation year | 1978 (48 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1609984830 |
| 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