Summary

Dr. John Lenahan is a dermatologist with specialized expertise in dermatopathology and pathology. With 59 years of experience in medicine, he brings extensive knowledge to the diagnosis and treatment of skin conditions. Dr. Lenahan earned his medical degree from Creighton University School of Medicine and speaks English.

Dr. Lenahan practices at UCSF Health St. Mary's Hospital and UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco, California. His dual training in dermatology and pathology allows him to provide comprehensive skin care, from clinical examinations to detailed microscopic analysis of tissue samples. Patients have given him an average rating of 4.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • 4
  • 59 years of experience
  • speaks English
  • Creighton University School Of Medicine
  • 3 specialties
  • 13 areas of expertise
  • 3 board certifications
  • 2 hospital affiliations
  • 1 office location
  • Male

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Dr. John Archie Lenahan, MDDr. Jonathan Carp, MDDr. Anna Chacon, MDDr. Alina G Bridges, MD, FAAD
DermatologyDermatologyDermatologyDermatology
Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
59 Years of Experience 26 Years of Experience 14 Years of Experience 28 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English, Spanish, French Speaks English
San Francisco , CADelray Beach , FLMiami , FLNew Hyde Park , NY
Med School: Creighton University School Of Medicine Med School: Rutgers Medical School Med School: Brown Medical School Med School: University of Medicine and Dentistry of NJ- School of Osteopathic Medicine
Current Profile
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Insurance Plans Accepted by Dr. John Archie Lenahan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. John Archie Lenahan has the following 3 specialties

Specialty Expertise

Dr. John Archie Lenahan has the following 13 areas of expertise

  • Acne (Acne Vulgaris)
  • Actinic Keratosis
  • Basal Cell
  • Dermatopathology
  • Excision
  • Melanoma
  • Mole
  • Pathology
  • Psoriasis
  • Rash
  • Rosacea
  • Skin Biopsy
  • Skin Cancer

Certifications, License, & Education

59 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2025, Expired

EDUCATION & TRAINING

Medical School

Creighton University School Of MedicineGraduated in 1967

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Frequently Asked Questions

Which hospitals is Dr. John Lenahan affiliated with?
Dr. John Lenahan is affiliated with Ucsf Health St Marys Hospital and Ucsf Helen Diller Medical Center At Parnassus Heights.
How can I make an appointment with Dr. John Lenahan?
You can find contact information for Dr. John Lenahan here on Vitals.
What languages does Dr. John Lenahan speak?
Dr. John Lenahan speaks English.
Where is Dr. John Lenahan's office located?
Dr. John Lenahan's office is located at 505 Parnassus Ave, San Francisco, CA, 94143.
Does Dr. John Lenahan accept my insurance?
You can see the insurance plans that Dr. John Lenahan accepts on their Vitals profile.

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