Carol A. Johnson, DO, Medical Director

Dr. Johnson has been with Desert Senita since June of 2004, and became Medical Director in October 2004. She graduated from Western University of Health Sciences in Pomona, California in 1998, and completed her residency at Mid-Hudson Family Health Institute in Kingston, New York. Prior to making Ajo her home, Dr. Johnson served as a staff physician at Mid-Hudson, and was a member of the residency faculty, supervising residents and other personnel. Dr. Johnson is Board Certified in Family Medicine by the American Board of Family Medicine and the American Osteopathic Board of Family Practice, and is a member of the American Osteopathic Association (AOA) and the American Academy of Family Physicians.

Allen Lee, DO, Staff Physician

Dr. Lee became the Staff Physician at Desert Senita in early 2009. He is a Board Certified Family Physician, having attended medical school at New York College of Osteopathic Medicine in Long Island, New York. Dr. Lee completed a dual residency program in Kingston, New York. As part of his education and residency, he also completed specialty training in OB/GYN, Dermatology, Surgery, and Geriatrics, and received a Certificate of Award in Geriatrics.

Nona M. Reynolds, RPH

Nona Reynolds joined the Desert Senita healthcare team in October 2009 as our Pharmacy Manager. She holds a Bachelor of Science in Pharmacy degree from the University of Washington, and previously practiced pharmacy in the state of Washington before moving to Arizona in 2002. Ms. Reynolds has 40 years of pharmacy experience, including experience in working in both retail, hospital, and community pharmacy settings. She also owned and operated her own pharmacy for over 15 years.

Benjamin W. Blackburn, PA-C

Ben Blackburn has been at Desert Senita for nearly two years, beginning at Desert Senita in the summer of 2006. He graduated from Idaho State University, located in Pocatello, Idaho, in December 2005, and completed rotations in a variety of different clinical practices. Mr. Blackburn is the assigned Same Day Clinic (SDC) provider, and is a member of the American Academy of Physician Assistants and the Association of Family Practice Physician Assistants.

Patricia K. Summers, FNP

Patti Summers, Family Nurse Practitioner, has been at Desert Senita since October 2007. She has over 10 years experience as a nurse practitioner, working in a variety of settings including family practice and urgent care clinics. Ms. Summers was a National Health Service Corps (NHSC) scholar, and is a member of the American Academy of Nurse Practitioners and Sigma Theta Tau, a national nursing honor society.

Jennifer Lim, DDS, Dental Director

Dr. Lim has been at Desert Senita Dental Center since December 2004. She graduated from Loma Linda University in Loma Linda, California in May 2003. Before she arrived in Ajo, Dr. Lim did locum tenens or temporary assignments in a variety of Phoenix-area dental practices, and was the staff dentist at Desert Senita Dental Center prior to her promotion to Dental Director in January 2008. Dr. Lim is a member of the American Dental Association, the Arizona Dental Association, and the Academy of General Dentistry.

Kevin Acone, DMD, Staff Dentist

Dr. Kevin Acone joined the Desert Senita team in July of 2009 in his role as staff dentist at the Dental Center. He graduated from The Boston University School of Dental Medicine in 2007, and during his tenure there completed residency and externship training in Boston’s historic North End as well as a community health center in southwestern Florida. Dr. Acone is a National Health Service Corps Scholarship recipient who plans on delivering dental care to remote third world countries volunteering his time with international outreach programs. Dr. Acone is a member of the American Dental Association, and the Arizona Dental Association.

Susan Guinn-Lahm, MA, LPC, CRC, Lead Behavioral Health Clinician

Ms. Guinn-Lahm is an Ajo native, and prior to working at Desert Senita she served as a volunteer on its governing board from 1997 to 2001. She successfully completed her masters of arts in special education and rehabilitation, with an emphasis in counseling, at the University of Arizona in 2003, and became a full-time behavioral health clinician at Desert Senita in June 2003. Ms. Guinn-Lahm previously worked for the local Regional Behavioral Health Authority (RBHA), Project PPEP, and has extensive experience working with developmentally disabled adults and children. She is a Licensed Professional Counselor (LPC) and a Certified Rehabilitation Counselor (CRC).

Yvonne Crewse, LPC, MAPC

Ms. Crewse joined the Desert Senita counseling staff in January 2008. Like Ms. Guinn-Lahm, she is also a native of Ajo. Prior to joining the Desert Senita team in January 2008, Ms. Crewse worked as a crisis counselor with a crisis intervention group in Phoenix, Arizona. Ms. Crewse graduated from Ottawa University with a Masters in Professional Counseling with a Certificate of Advanced Graduate Studies in Expressive Art Therapies in 2004, and became a Licensed Professional Counselor (LPC) in 2007.