Quick answers
- Does Ronald P. Karlsberg accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald P. Karlsberg 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 Ronald P. Karlsberg see?
- In 2024, CMS data shows 633 Original Medicare patients and 40,741 services for Ronald P. Karlsberg. This counts Original Medicare only and measures volume, not quality.
- What is Ronald P. Karlsberg's NPI number?
- 1588636922. 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 Ronald P. Karlsberg, 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 | 633 |
|---|---|
| Services billed to Medicare | 40,741 |
| Different services or procedures | 115 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)16,800 services
- Brief communication technology-based service, e.g. virtual check-in, by a physician or other qualified health care professional who can report evaluation and management services, provided to an established patient, not originating from a related e/m servic (G2012)1,577 services
- Collection and interpretation of physical parameters stored in computers and/or transmitted by the patient and/or caregiver to qualified health care professional, requiring 30 minutes or more, per 30 days (99091)1,400 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)1,232 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)1,026 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%
- High cholesterol75%
- Ischemic heart disease73%
- Arthritis48%
- Atrial fibrillation28%
- Diabetes25%
Hospitals where Ronald P. Karlsberg works
Medicare's Facility Affiliation Data lists Ronald P. Karlsberg 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.
- Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050625
Practice locations
Addresses where Ronald P. Karlsberg is enrolled with Medicare (CMS data updated October 2, 2026).
- 414 N Camden Dr, Suite 1100Beverly Hills, CA 90210 (310) 278‑3400
- 8635 W 3rd St, Suite 1190wLos Angeles, CA 90048 (310) 652‑4600
Group practices
Medicare enrollment lists Ronald P. Karlsberg as a member of this group (CMS data updated October 2, 2026).
- Cardiovascular Medical Group of Southern California11 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Beverly Hills
Clinicians with the same Medicare primary specialty in Beverly Hills, CA — not a recommendation.
Other clinicians in Cardiovascular Medical Group of Southern California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1973 (53 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1588636922 |
| 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