Dental Staff

Dentists in Baltimore, MD 

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The brief descriptions below are designed to familiarize you with our professional credentials and experience.



K. Michael Murphy, DDS, MS

Dentist in Baltimore, MD

Dr. K. Michael Murphy & Associates, LLC

Baltimore, MD Cosmetic Dentist Dr. K. Michael Murphy



Alexandra T. Welzel, DMD, FAGD

Dentist in Baltimore, MD

Dr. K. Michael Murphy & Associates, LLC

Baltimore, MD Cosmetic Dentist Dr. K. Michael Murphy

  • Graduated froma Dental School, RWTH Aachen, Germany in 1992.
  • Completed research and Doctoral Thesis, Magna Cum Laude, at the Department of Oral-Maxillofacial Surgery at the RWTH Aachen, Germany in 1994, where she was awarded Doctor Of Medical Dentistry (Dr. med. dent.).
  • Private practice in Germany until 1996.
  • Completed 3 years of residency in Advanced General Dentistry with enrollment in the MSOB program at the University of Maryland Baltimore College of Dental Surgery and received her American Dental License in 1998.
  • Is an active member of dental organizations including the American Dental Association and the Academy of General Dentistry.
  • Is committed to her patients and strives to help them feel and look their best through comfort, compassion and clinical excellence.

Dr. Joel Danziger, DDS

Dentist in Baltimore, MD

Dr. K. Michael Murphy & Associates, LLC

Baltimore, MD Cosmetic Dentist Dr. K. Michael Murphy

  • Danziger received his doctorate from the University of Maryland Baltimore Dental School, where he was selected for a special clerkship in Oral Surgery. After receiving his D.D.S. degree, he completed an Advanced General Dentistry residency program at the University of Maryland. In his residency, Dr. Danziger received extensive experience in the more complicated aspects of dentistry. His training included surgical placement of implants and complex crown and bridge restoration.

  • Dr. Danziger regularly attends numerous hours in continuing education courses each year in order to stay well informed and up to date with the latest technological and treatment advances in dentistry. This ensures that he is always able to provide the highest levels of quality care to his patients. He is also actively involved in dental study clubs and professional affiliations, where he collaborates with his peers.

  • Professional associations

    • American Dental Association

    • Academy of General Dentisty

    • Alpha Omega

    • Certified in Invisalign

    • Certified in Clear Correct


Our Business Administrative Team:

Baltimore, MD hygienist team of K. Michael Murphy and Associates

Anna - Office Manager

Anna has been in the dental field for 30 plus years. She also worked as a trainer for a dental compute company before coming to Dr. Murphy’s in 2000. She is married with 3 children and 4 grandchildren. First love (after husband), playing with the grandchildren. Then working in the yard and just being outside. Believes “Home is where your story begins…"

Joellen - Marketing/Patient Care Coordinator

Joellen DeBoy has been working in the dental industry for over 25 years and has been with Dr. Murphy and Associates for 15 years. She multi-functions as a coordinator for both the patient recare system as well as internal and external marketing. She and her husband, David, reside in Owings Mills and have three grown children as well as two terrific grandsons, Christian and Camden. When not enjoying time with family, Joellen and David enjoy travel, cooking, antique shopping, gardening and spending time with friends.

Janie - Insurance and Patient Care Coordinator/HR

Janie lives on the eastern shore of Maryland. She has been working at our practice since 2008. When not working, Janie loves spending time with her Yorkie Lyla, reading books and going to the gym. Janie is engaged and getting married in June 2019.

Jennifer- CDA, Patient Care Treatment plan Coordinator/Social Media Specialist

Bio Coming Soon!

Tami - Patient Care Coordinator/Sleep Apnea Specialist

Tami is from Houston, Texas and currently lives in Baltimore County. Tami has been in the dental field for over 20 years. Tami multi-functions as a Patient Care Coordinator and is our Sleep Apnea Program Specialist. Tami believes that having a "true connection" with our patients is an absolute MUST. Tami genuinely cares about the wellbeing of our patients & keeping them on track with their Dental & Sleep health. Tami has a son, whose name is Layden. When not working, Tami enjoys sports & hiking with her son, cooking, and spending time with family.

Our Hygienist Team:


Sherri - Hygienist

Sherri was born in Baltimore and graduated from CCB and UMAB with a BS degree in Dental Hygiene. She has been practicing dental hygiene for 34yrs and has been with Dr Murphy for 20 years. She is married and has two beautiful young adult daughters aged 20 and 21. In her spare time, Sherri likes to swim, bike, run and practice yoga. She has been participating in triathlons from sprint distance to full distance Ironman's for the last 13 years. You can blame Dr Murphy for her love of triathlon!!

Sandy - Hygienist

Hi, my name is Sandy Sheffler and I have been a registered dental hygienist (RDH) in the State of Maryland, since 1973. I have been working for Dr. Murphy and Associates since 2004. Working in this office is my “dream job”. I am able to help my patients achieve not only dental but overall health as well. In order to do this, a dental office needs to give their hygienists plenty of time to each and every patient. I have established wonderful relationships with my patients and really know how they progress in their efforts to have a healthy mouth and body. One of the tools I’ve had available to me in the last 30 years is a microscope where I can identify the harmful bacteria that causes periodontal disease and tooth decay. I am now working with physicians that work with cardiac patients, together we are helping patients with heart disease illuminate not only harmful bacteria but lower their inflammation as well. Both heart disease and periodontal disease are inflammatory diseases.

On a personal side, I have a wonderful adult son and just as wonderful daughter-in-law. They live in Baltimore so I do get to see them often. I have two hysterically funny little white dogs, Sophie and Lucy. They are fabulous companions, both rescues.

I have a vacation house in North Carolina on a lake. I have a boyfriend down there who has a boat and when we can we are on the lake fishing. I love to cook, sew, most crafts including beads and love home improvement projects and home decorating. I have a very happy, full life.

I love being a dental hygienist and hope to see you in the office soon.

Sheila - Hygienist

Sheila is an experienced dental hygienist with over 30 years of practice. She graduated from Columbia University with a Bachelor of Science degree in Dental Hygiene. Sheila says that she still enjoys her work. She especially loves connecting with her patients and forming life long bonds. Sheila believes that the oral cavity is the gateway to your overall health and stresses the importance of good oral health with her patients. She enjoys traveling, bike riding and seeing live bands perform.

Jan - Hygienist

Bio Coming Soon!

Our Certified Dental Assistants:


Tonia - Dental Assistant

Bio Coming Soon!

Reanna - Dental Assistant

Bio Coming Soon!

Aisha - Dental Assistant

Bio Coming Soon

Heather- Dental Assistant

Bio Coming Soon!