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Dr. Allen aims to make a difference in the lives of her patients by providing the highest quality care in a comfortable environment.
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Appointment Request

We are accepting new patients only by doctor referral for biopsy proven skin cancers at this time.  For established patients we've made requesting an appointment easy.
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COVID-19 Update


I have made the difficult decision to close our physical office location for all but the most urgent appointments until further notice. It has become increasingly apparent that the novel coronavirus SARS-CoV-2 (which causes the COVID-19 respiratory disease) may be transmitted by individuals who do not show any symptoms of disease. For example, the first patients to test positive in SLO county were not travelers returning from other areas, but rather people who acquired the virus from someone else in the community at large. In other words, the positive tests that we are seeing are now are just the tip of the iceberg, and there are many more individuals who are carrying the virus that we do not yet know about, because we just have not had the capacity to test enough individuals to determine the full spread yet.

The other reason for closing our office is that we are connected to a cancer center that serves a patient population who are very vulnerable to this type of disease. We do not want to put their patients at risk, so our portion of the building will temporarily be closed off from the main building, which means no access to bathrooms and that we are limited to only one exam room.

Please know that Nancy and I are dedicated to serving our patient’s needs in any way that we can, so the two of us will continue to work from our respective homes via electronic communication and we are looking into setting up a telemedicine service to help us deal with non-urgent problems. If you have any problems or concerns, please do not hesitate to call, text, or email us and we will be more than happy to help as best we can. We plan on having some limited office hours to deal with urgent problems. We will be calling patients with upcoming appointments in the coming days to arrange for their needs.

I encourage everyone to hunker down and limit social contact as much as possible for the time being. There is no reason to panic, because if we can take action now then hopefully we can avoid the rapid explosion of cases as seen in Italy and other places. We can learn from their mistakes and take precautions now - it is virtually impossible to over-prepare, but very easy to become complacent and under-prepare.

For more information, here are a few reliable resources that you can trust (will open in a new tab):

Be well,



Karen D. Allen MD

Diplomate of the American Board of Dermatology

Fellow of the American Society for Mohs Surgery

Welcome! Thanks for visiting! We want all our patients to be informed decision makers and fully understand any health issues you face. That's why we've developed a web site loaded with valuable information about dermatology and skin problems and treatments. We encourage you to visit this site whenever you have concern about your skin.

Our web site also provides you with background about our staff, office hours, insurance policies, appointment procedures, maps, directions to our office in San Luis Obispo and other useful information. We know how hectic life can be and are committed to making our practice convenient and accessible. And we want you to feel confident that when you choose our office, you're working with a doctor and other professionals who are qualified, experienced and caring.

Please take a few moments to look through this site to get a better feel for our services. We also invite you to call our San Luis Obispo office at any time to request an appointment or ask any questions. Thank you.