Meet Dr. Joseph Gretzula, D.O., F.A.A.D.

Dr. Gretzula received his training in dermatology at the world-renowned Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery at the University of Miami in Miami, Florida where he served for many years on the voluntary faculty. Dr. Gretzula locally serves on the medical staff at Bethesda Memorial Hospital in Boynton Beach, FL.

Certification & Memberships

  • Board-certified doctor of osteopathic medicine
  • Diplomat of the American Board of Dermatology
  • Member of the Florida Society of Dermatologic Surgery
  • Fellow of the American Academy of Dermatology 
  • Fellow of the American Society of Dermatologic Surgery
  • Fellow of the Florida Society of Dermatology and Dermatologic Surgery 
  • Florida Society of Dermatologic Surgeons
  • Palm Beach County Society for Dermatology & Cutaneous Surgery – President (1987-89)
  • Palm Beach County Medical Society
  • Cancer Care Committee at Bethesda Memorial Hospital (1989-90)
  • The “U” Dermatology Association


Dr. Gretzula holds a Bachelor of Science degree in pharmacy, having trained at the Philadelphia College of Pharmacy and Science — the first School of Pharmacy in North America. 

Throughout his training in pharmacy, he procured a unique understanding and love of pharmacology and the science of pharmacognosy. Pharmacognosy is a branch of pharmacy that deals specifically with the study of medicinal and/or pharmaceutical substances derived from natural sources including plants, fungi, and animals.

Dr. Gretzula’s Philosophy

Having trained as both an osteopathic and allopathic physician and a pharmacist, Dr. Gretzula has incorporated a more holistic approach into his practice. His other passions include art, science, and nutrition.

There are tremendous parallels between art and science, as each reflects and incorporates creativity and the curiosity for the unknown. They both reflect on a very simple premise “to explore and reflect an interest in creating something new”.


Gone are the days of “one size fits all” patient care. A more personal approach — one specifically tailored to a person’s needs — should be the focus of medical practices today. The interaction between a person’s genotype, their nutritional intake, behavioral lifestyle, and socioeconomic environment together influences overall health. Dr. Gretzula’s program at Beauty Within combines a personalized and precise nutritional plan and counseling services to support health, wellbeing, and increased productivity. This science-backed approach to aesthetics, anti-aging, and wellness is designed to enhance the beauty within so that you can both look and feel great.

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Dr. Gretzula has been recognized as a KOL by both InMode and UltraClear.  Additionally, Dr. Gretzula is only the third provider in the entire state of Florida, and 25th in the entire country, to offer the UltraClear Laser in Boynton Beach.

Learn more about Morpheus8 by InMode.

Learn more about UltraClear Laser

Beauty Within Treatments

Dr. Gretzula specializes in recommending the best treatments for ALL Fitzpatrick skin types I-VI.

Type I

Type II

Type III

Type IV

Type V

Type VI

“Dr. Gretzula is smart, well-informed, and kind. You can trust him with your health — skin and otherwise. He’s my go-to doctor and always will be.”

Susan C. 

Education and Training


University of Miami School of Medicine
Jackson Memorial Hospital, Miami, FL (1984-87)
Residency: Dermatology
1984: Resident of the Year, Jackson Memorial Hospital

Geisinger Medical Center
Danville, PA (1983-84)
Internship: Internal Medicine
Completed all internship rotations with an A


Philadelphia College of Osteopathic Medicine
Philadelphia, PA (1979-83)
Degree: Doctor of Osteopathy (D.O.)
1983: Honor Student-Class Rank 1st in 203
1982: William Goldman Foundation Award
1980: Christian & Mary Lindback Fdn. Award


Philadelphia College of Pharmacy & Science
Philadelphia, PA (1975-79)
Degree: B.S. Pharmacy, Magna Cum Laude
1979: Honor Student-Class Rank 2nd in 219
1979: Merck, Sharp & Dome Award
1978: Joseph W. Harrison Award
1977: Rho Chi Society – Pharmaceutical Honor Society
1976: Woodside Memorial Scholarship
Member: Alumni Association, PCPS

Keystone Jr. College, La Plume, PA (1974-75)
Major: Pre-Pharmacy
Dean’s List/Honor Student

Ready to Schedule a Consultation?

With over 39 years of experience in the medical field, in-depth clinical experience and education, passion, and a great team of aestheticians and physician’s assistants, Dr. Gretzula offers patients a truly transformative lifestyle program. Beauty Within is a wellness and anti-aging center that will focus on your health, beauty, and overall wellbeing. Be sure to call ahead with Dr. Gretzula to book an appointment, and allow us to Enhance the Beauty Within You.

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