Clinicians affiliated with Cep America - California
1,292 clinicians on file with this group · most practice in Riverside-San Bernardino-Ontario, CA · PAC ID 6103739131
Affiliation snapshotOctober 2, 2026CMS Doctors and Clinicians file, current snapshot (no end-of-2024 archive), applied to 2024
Activity year2024Medicare Part B claims, Original Medicare fee-for-service
1,097 clinicians affiliated with Cep America - California are in the 2024 Medicare Part B data, 978 of them physicians. Data years with affiliated clinicians: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024.
Each clinician's exact figures are in their Physician Report, from their page; a specialty's figures in this market are in a Market Comparison. View sample report · Already purchased? Open your report
Affiliated clinicians by specialty, 2024
All specialties · Emergency Medicine (955) · Nurse Practitioner (93) · Physician Assistant (26) · Family Practice (15) · Internal Medicine (3) · Anesthesiology (1) · General Surgery (1) · Hospitalist (1) · Nephrology (1) · Neurology (1)
Specialty links go to the specialty in Riverside-San Bernardino-Ontario, CA.
Clinicians affiliated with Cep America - California, 2024
Alphabetical by last name; 801–900 of 1,097.
| Name | Specialty | City |
|---|---|---|
| Chi Kong Poon | Emergency Medicine | Hartford, CT |
| Mark Portman, M.D. | Emergency Medicine | Sacramento, CA |
| Jennifer M Prigge, M.D. | Emergency Medicine | Carmichael, CA |
| Rosemary Proff, FNP-C | Nurse Practitioner | Big Bear Lake, CA |
| Arlene Putnam | Nurse Practitioner | Fresno, CA |
| Emmanuel A Quaidoo | Emergency Medicine | Castro Valley, CA |
| Willeed Rabah, MD | Emergency Medicine | Loma Linda, CA |
| David Radler, MD | Emergency Medicine | Santa Maria, CA |
| Vikram Raj, D.O. | Emergency Medicine | Colton, CA |
| Uzair M Raja, MD | Emergency Medicine | Muskegon, MI |
| Anna Ramirez, FNP-C | Nurse Practitioner | Marysville, CA |
| Ruth A Ramos, MD | Emergency Medicine | Loma Linda, CA |
| Shelby J Randall, DO | Emergency Medicine | Augusta, GA |
| Cuauhtlehuanitzin A Rangel | Emergency Medicine | Bakersfield, CA |
| Robert Ray, DO | Emergency Medicine | Sacramento, CA |
| Hugo M Razo, M.D. | Emergency Medicine | Rancho Mirage, CA |
| Jamie A Redondo, MSN/FNP-C | Nurse Practitioner | Tulare, CA |
| Kathleen A Regacho, MD | Emergency Medicine | Antioch, CA |
| Thomas M Reilly, MD | Emergency Medicine | Sherman Oaks, CA |
| Michael Reinberg, MD | Emergency Medicine | Pittsburgh, PA |
| Carli R Reisdorf, MD | Emergency Medicine | San Francisco, CA |
| Paulo Reyes, M.D. | Emergency Medicine | Victorville, CA |
| Sonia-Maria Reyes, M.D | Emergency Medicine | Lexington, KY |
| Kara L Reynolds, DO | Emergency Medicine | Indianapolis, IN |
| Juan Reynoso, M.D. | Emergency Medicine | Chicago, IL |
| Brian S Rhee, M.D | Emergency Medicine | Garden Grove, CA |
| Derek K Richardson, MD | Emergency Medicine | San Francisco, CA |
| Julian L Richardson, MD | Emergency Medicine | Chicago, IL |
| Mark B Ringer, MD | Emergency Medicine | Loma Linda, CA |
| Gabriela Rios, NP | Nurse Practitioner | Reedley, CA |
| Jaime B Rivas, M.D. | Emergency Medicine | Escondido, CA |
| Michael Robbins, M.D | Emergency Medicine | Baltimore, MD |
| Geralyn A Roberson, NP-C | Nurse Practitioner | Fresno, CA |
| Laura Robinson, MD | Emergency Medicine | Mesa, AZ |
| Renee M Rocha, NP-C | Nurse Practitioner | Bakersfield, CA |
| Christopher Roden, DO | Emergency Medicine | Ross, CA |
| Anthony Rodigin, M.D. | Emergency Medicine | Fresno, CA |
| Poppi E Rodriguez-Webb, D.O. | Emergency Medicine | Lodi, CA |
| John A Roever | Emergency Medicine | San Francisco, CA |
| Howard R Romero, D.O. | Emergency Medicine | Glendale, CA |
| Luke Rond, D.O. | Emergency Medicine | Tracy, CA |
| Martin A Rosengreen, M.D. | Emergency Medicine | Jackson, MS |
| Jonathan Rosenson, MD | Emergency Medicine | Oakland, CA |
| Catherine M Ross, M.D. | Emergency Medicine | Inglewood, CA |
| Ethan M Ross, MD | Emergency Medicine | Los Angeles, CA |
| Daniel J Rossie | Emergency Medicine | Loma Linda, CA |
| Ryan A Roten, D.O. | Emergency Medicine | Colton, CA |
| Cassandra Roy, NP | Nurse Practitioner | Chicago, IL |
| Robert P Royer, M.D | Emergency Medicine | Roseville, CA |
| Rebecca Rozenberg, FNP | Nurse Practitioner | Lancaster, CA |
| Amy Russell | Emergency Medicine | Loma Linda, CA |
| Hannah Russo | Emergency Medicine | Lansing, MI |
| Dhaval V Ruwala, DO | Emergency Medicine | Bronx, NY |
| Lauren A Rys, DO | Emergency Medicine | Beale Afb, CA |
| Hala H Sabry, D.O. | Emergency Medicine | Rancho Cucamonga, CA |
| Kody D Sacks-Moynihan | Emergency Medicine | Aventura, FL |
| Daniel Sadoma, DO | Emergency Medicine | West Reading, PA |
| Lai L Saetern | Nurse Practitioner | Selma, CA |
| Freshta Sahak, MD | Emergency Medicine | Fresno, CA |
| Houmam M Saker, DO | Emergency Medicine | Inglewood, CA |
| Oscar D Salaiz, DO | Emergency Medicine | Moreno Valley, CA |
| Jamia Salazar, NP | Nurse Practitioner | Long Beach, CA |
| Gaber Saleh | Family Practice | Walnut Creek, CA |
| Todd S Sallenbach, M.D. | Family Practice | Joshua Tree, CA |
| Sara J Sameshima | Physician Assistant | Los Gatos, CA |
| Evan M Sands | Emergency Medicine | Chicago, IL |
| Leonel Santibanez, FNP | Nurse Practitioner | French Camp, CA |
| Federica Sarti, DO | Emergency Medicine | Stockton, CA |
| John M Sawyer, MD | Emergency Medicine | Los Angeles, CA |
| Matthew B Scales, M.D. | Emergency Medicine | Chicago, IL |
| Christopher L Schaefer, DO | Emergency Medicine | Visalia, CA |
| Steven M Schafer, MD | Emergency Medicine | Cleveland, OH |
| Jonathan A Schilling, M.D. | Emergency Medicine | Tulsa, OK |
| Thomas Schilling, M.D. | Emergency Medicine | Fresno, CA |
| Alexander D Schmalz, MD, MPH | Emergency Medicine | Sacramento, CA |
| Tegan M Schmidt, MD | Emergency Medicine | Colton, CA |
| Daniel P Schneider, D.O. | Emergency Medicine | Cleveland, OH |
| Lauren Schneider, MD | Emergency Medicine | Madera, CA |
| Benjamen E Schoenberg, MD | Emergency Medicine | Riverside, CA |
| Gabriel T Schroeder, M.D. | Emergency Medicine | Fresno, CA |
| Nicholas Schulack, DO | Emergency Medicine | Las Vegas, NV |
| Thomas E Schutz, MD | Emergency Medicine | Antioch, CA |
| Pamela Schwendy, DO | Emergency Medicine | Warwick, RI |
| Henry Schwimmer, MD | Emergency Medicine | Oakland, CA |
| Marisa E Scofield, M.D. | Emergency Medicine | San Jose, CA |
| Alyssa Z Scott, M.D. | Emergency Medicine | Torrance, CA |
| Eric T Sechrist, D.O. | Emergency Medicine | Colton, CA |
| Nicholas S Selden | Emergency Medicine | Sacramento, CA |
| Tana Seneewong | Family Practice | Modesto, CA |
| Sakona Seng, DO | Emergency Medicine | Colton, CA |
| Paulina Sergot, MD | Emergency Medicine | Glendale, CA |
| Jason M Sesi, PA-C | Physician Assistant | Las Vegas, NV |
| Katherine Shafer, M.D. | Emergency Medicine | French Camp, CA |
| Bansari Shah, M.D. | Emergency Medicine | Chicago, IL |
| Chintu S Shah, MD | Emergency Medicine | Austell, GA |
| Ryan S Shanahan, M.D. | Emergency Medicine | Baltimore, MD |
| Thomas Shank | Emergency Medicine | Sacramento, CA |
| Rebecca Sheets, NP-C | Nurse Practitioner | Temecula, CA |
| Stephen Shellans, M.D. | Emergency Medicine | Bakersfield, CA |
| Josh Sheridan, MD | Emergency Medicine | Loma Linda, CA |
Practice locations
Listed practice locations in California.
Source: CMS Doctors and Clinicians National Downloadable File, snapshot October 2, 2026.
Membership comes from the CMS Doctors and Clinicians file. CMS does not publish an end-of-year archive of it, so the current snapshot is applied to every data year. A clinician affiliated with several groups or hospitals appears on each of their pages. How group pages are built · Limitations