| 1 | | Kari Roberts, M.D. | Barker | 1997 | Tufts Medical Center | Boston | MA |
| 2 | | David Robertson, M.D. | N/A | 0 | Vanderbilt University | Nashville | TN |
| 3 | | Daniel Robinhold, M.D. | N/A | 0 | Oregon Cardiology | Eugene | OR |
| 4 | | Tara Robinson, M.D., Ph.D. | Thayer | 2012 | Johns Hopkins Hospital | | |
| 5 | | Robert Roca, M.D. | N/A | 0 | Sheppard Pratt Health System | Towson | MD |
| 6 | | Peter Rock, M.D. | N/A | 0 | Univ of Maryland School of Medicine | Baltimore | MD |
| 7 | | Peter Rock, M.D., M.B.A. | Thayer | 1978 | University of Maryland | Baltimore | MD |
| 8 | | Richard Rodeheffer, M.D. | | 1977 | Mayo Clinic | Rochester | MN |
| 9 | | Joseph Roe, M.D. | N/A | 0 | Aroostock Medical Center | Presque Isle | ME |
| 10 | | William Rogers, M.D. | N/A | 0 | University of Alabama Medical Cntr | Birmingham | AL |
| 11 | | Kenneth Roistacher, M.D. | Janeway | 1979 | St. John's Episcopal Hospital | Far Rockaway | NY |
| 12 | | Jeani Romanelli, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 13 | | John Rose, M.D. | N/A | 0 | University of Cambridge | Cambridge | England |
| 14 | | Antony Rosen, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 15 | | Andrew Rosenberg, M.D. | N/A | 0 | University of Michigan Schl of Med | Ann Arbor | MI |
| 16 | | Elizabeth Rosenblatt, M.D. | Janeway | 2011 | Johns Hopkins | Baltimore | MD |
| 17 | | Miriam Rosenthal, M.D. | N/A | 0 | Case Western Res Univ Sch Medicine | Cleveland | OH |
| 18 | | Julie Rosenthal, M.D. | Barker | 2009 | Cleveland Clinic | Cleveland | OH |
| 19 | | Richard Ross, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 20 | | Ronenn Roubenoff, M.D. | N/A | 0 | Tufts University | Cambridge | MA |
| 21 | | Ronenn Roubenoff, M.D. | Barker | 1983 | Novartis Institutes for Biomedical Research | Cambridge | MA |
| 22 | | Anastasia Rowland-Seymour, M.D. | Longcope | 1997 | Johns Hopkins | | |
| 23 | | Donald Royall, M.D. | N/A | 0 | University of Texas Medical Branch | San Antonio | TX |
| 24 | | Jerome Rubin, M.D. | N/A | 0 | Monterey Bay Oncology | Monterey | CA |
| 25 | | Jonathan Rubin, M.D. | Barker | 2011 | | | |
| 26 | | Arthur Rudo, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Westminster | MD |
| 27 | | Francisco Ruiz-Maza, M.D. | N/A | 0 | National University - Mexico | Mexico City | D.F. |
| 28 | | Marschall Runge, M.D. | N/A | 0 | Univ of North Carolina Chapel Hill | Chapel Hill | NC |
| 29 | | R. Russell, M.D. | N/A | 0 | Central New Hampshire Kidney Center | Laconia | NH |
| 30 | | Stuart Russell, M.D. | Barker | 1991 | Johns Hopkins School of Medicine | Baltimore | MD |
| 31 | | Cyril Ruwende, M.D. | N/A | 0 | Michigan Heart, P.C. | Ypsilanti | MI |
| 32 | | Paul Ryan, M.D. | N/A | 0 | | San Bernardino | CA |
| 33 | | Michael Ryan, M.D. | N/A | 0 | Eastern Virginia Medical School | Norfolk | VA |
| 34 | | Bruce Sabath, M.D. | Longcope | 2007 | Washington Hospital Center | Washington | DC |
| 35 | | Joseph Sabatino, M.D., Ph.D. | Longcope | 2012 | Johns Hopkins University | Baltimore | MD |
| 36 | | Amin Sabet, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 37 | | George Sack, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 38 | | Manish Sagar, M.D. | N/A | 0 | Brigham and Womens Hospital | Cambridge | MA |
| 39 | | Sudip Saha, M.D. | Janeway | 2010 | Johns Hopkins Hospital | Baltimore | MD |
| 40 | | Sarina Sahetya, M.D. | Barker | 2011 | Johns Hopkins Hospital | Baltimore | MD |
| 41 | | Michael Saitta, M.D. | N/A | 0 | Arthritis Center Of The Ozarks | Fayetteville | AR |
| 42 | | Assil Saleh, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 43 | | Ravi Salgia, M.D. | N/A | 0 | Johns Hopkins Hospital | | |
| 44 | | Joyce Sanchez, M.D. | Thayer | 2007 | Mayo Clinic | Rochester | MN |
| 45 | | Kyle Sandstrom, M.D. | Barker | 2010 | Mayo Clinic | Rochester | MN |
| 46 | | Rein Saral, M.D. | N/A | 0 | Emory University | Atlanta | GA |
| 47 | | Patricia Savadel, M.D. | N/A | 0 | Park Medical Associates, P.A. | Lutherville | MD |
| 48 | | Paul Scanlon, M.D. | Longcope | 1978 | Mayo Clinic | Rochester | MN |
| 49 | | Jonathan Scharfstein, M.D. | N/A | 0 | Johns Hopkins Hospital | Baltimore | MD |
| 50 | | Jonathan Scharfstein, M.D. | Barker | 1987 | Cleveland Clinic | Mayfield Heights | OH |
| 51 | | Marcos Schechter, | Janeway | 2010 | JHH | Baltimore | MD |
| 52 | | Alison Schecter, M.D. | N/A | 0 | Johns Hopkins Hospital | | |
| 53 | | Paul Scheel, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 54 | | George Scheele, M.D. | N/A | 0 | | La Jolla | CA |
| 55 | | Oliver Schein, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 56 | | Jane Schell, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 57 | | Joshua Schiffer, M.D. | Longcope | 2002 | Fred Hutchinson Cancer Research Ctr | Seattle | WA |
| 58 | | Matt Schimmel, M.D. | Barker | 2014 | Emory University | Atlanta | GA |
| 59 | | Kelly Schlendof, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 60 | | Mark Schlissel, M.D. | N/A | 0 | Brown University | Providence | RI |
| 61 | | D. Schlott, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 62 | | Eric Schmidt, M.D. | Barker | 2001 | University of Colorado | Aurora | CO |
| 63 | | Edyth Schoenrich, M.D. | N/A | 0 | Bloomberg School of Public Health | Baltimore | MD |
| 64 | | Jill Schofield, M.D. | Thayer | 1995 | Colorado Permanente Medical Group | | MD |
| 65 | | Robert Schooley, M.D. | N/A | 1974 | University of California, San Diego | San Diego | CA |
| 66 | | Charles Schron, M.D. | N/A | 0 | SE Valley Gastroenterology Cons. PC | Chandler | AZ |
| 67 | | Aaron Schueneman, M.D. | Longcope | 2010 | JHH | Baltimore | MD |
| 68 | | Steven Schulman, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 69 | | Julia Scialla, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 70 | | Timothy Scialla, M.D. | N/A | 0 | Johns Hopkins School of Medicine | | |
| 71 | | Bart Scott, M.D. | N/A | 0 | Fred Hutchinson Cancer Research Ctr | Seattle | WA |
| 72 | | Eric Seifter, M.D. | N/A | 0 | Johns Hopkins Hospital | Lutherville Timonium | MD |
| 73 | | Stephen Selinger, M.D. | N/A | 0 | Johns Hopkins University | Baltimore | MD |
| 74 | | Deborah Sellmeyer, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 75 | | Stuart Selonick, M.D. | Longcope | 1975 | Johns Hopkins School of Medicine and Anne Arundel Medical Center | Annapolis | MD |
| 76 | | Laura Sena, | Thayer | 2015 | Johns Hopkins | Baltimore | MD |
| 77 | | Devi Sengupta, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 78 | | Todd Senn, M.D. | Thayer | 2008 | CCF | | |
| 79 | | Philip Seo, M.D., M.P.H. | Longcope | 1997 | Johns Hopkins | Baltimore | MD |
| 80 | | Monica Shah, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 81 | | Edward Shapiro, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 82 | | Mindy Shapiro, M.D. | N/A | 0 | Pulmonary Specialists of Nevada | | |
| 83 | | David Shaw, M.D. | N/A | 1967 | Scripps Mercy Hospital | San Diego | CA |
| 84 | | Katie Shaw, M.D. | Longcope | 2011 | | | |
| 85 | | David Shaw, M.D., M.B.A. | N/A | 1967 | Scripps Mercy Hospital | San Diego | CA |
| 86 | | Jessica Shay, M.D., Ph.D. | Janeway | 2015 | Massachusetts General Hospital | Boston | MA |
| 87 | | Ian Shenk, M.D. | N/A | 0 | Kaiser-Permanente | Springfield | VA |
| 88 | | Steven Sherman, M.D. | N/A | 0 | M. D. Anderson Cancer Center | Houston | TX |
| 89 | | Gary Sherrill, M.D. | N/A | 0 | Johns Hopkins Hospital | Baltimore | MD |
| 90 | | Anandi Sheth, M.D. | Barker | 1998 | Emory University School of Medicine | Atlanta | GA |
| 91 | | Eun Shin, M.D. | N/A | 0 | Johns Hopkins School of Medicine | Baltimore | MD |
| 92 | | Dolores Shoback, M.D. | N/A | 0 | Univ of California at San Francisco | San Francisco | CA |
| 93 | | Adam Shpigel, M.D. | Longcope | 2012 | Johns Hopkins | Baltimore | MD |
| 94 | | Robert Shuman, M.D. | N/A | 0 | Dublin Internal Medicine | Dublin | GA |
| 95 | | Shazia Siddique, M.D. | Longcope | 2012 | Johns Hopkins Hospital | Baltimore | MD |
| 96 | | Ramana Sidhaye, M.D. | N/A | 1998 | Johns Hopkins University | Baltimore | MD |
| 97 | | William Sigmund, M.D. | N/A | 0 | GlaxoSmithKline | Philadelphia | PA |
| 98 | | Kenneth Silverman, M.D. | N/A | 0 | Harvard University | Boston | MA |
| 99 | | Davis Sim, M.D., Ph.D. | Barker | 2009 | | Palo Alto | CA |
| 100 | | Donald Simborg, M.D. | N/A | 0 | Know-Med Systems | Berkeley | CA |