Now Reopened

Brentwood, CA

Now Reopened

Brentwood, CA

NHI Medical is Open!

Meet directly with Doctors Jae Pak, M.D. and William Rassman, M.D. of NHI Medical to receive an honest assessment of your hair restoration options.
Schedule a Virtual Consultation

Schedule a Virtual Consultation - Multistep

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  • Please email us at if you are not in the United States.

Patient Care and Safety

At NHI Medical, patient safety and care has always been our greatest concern. We have always upheld the highest standards in sterilization and cleanliness using the follow protocols:

  • Only one patient per procedure room per day.

  • Doctors and medical technicians wear gowns, gloves and facemasks in the procedure room with our patients.

  • Procedure Rooms and Surgical Tools are thoroughly cleaned and sterilized before each patient’s procedure.

Personal Protective Equipment

We have always and will continue to use PPE for the safety of our patients and staff. Patients also have the option to wear face masks and gloves provided by our office. Hand sanitizer is also available throughout our office as well.


We adhere to the strictest guidelines for cleanliness and safety throughout our entire office.

Thorough cleaning and sterilization of the operating room, tools, equipment, and exterior rooms is completed each day after every procedure.

Your Doctors

Dr. Jae Pak is a board-certified Emergency Medicine physician who keeps current on all guidelines, treatments, and protocols related to COVID-19 and other medical emergencies.

Doctor Jae Pak

Dr. William Rassman is a Cardiologist with board-certification in Internal Medicine. He too follows the strictest guidelines and stays current with all treatments and protocols related to COVID-19 and other medical emergencies.

Headshot Image of NHI Medical Eyebrow Transplant Female Patient

“I wanted a more feminine hairline as my corners always bothered me. He addressed my goals and drew in the hairline so I could have an idea of where my grafts would be placed.”

-Actual NHI Medical Patient

Why NHI Medical?

Our surgeons are pioneers in the methods of FUE and FUT hair restoration and the harvesting of individual hair follicles.

  • Your consultation will be held with an NHI Medical doctor, not a salesperson.

  • Our State Of The Art Medical Office is Located In Brentwood, California.

  • NHI Medical was established in 1992. Dr. Pak and Dr. Rassman’s innovative hair restoration technology has resulted in dozens of US patents and the publishing of many articles and books.

© New Hair Institute. All photos on this site depict actual NHI patients and are the property of NHI.

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