IPM - Los Altos

851 Fremont Ave # 109, Los Altos, CA 94024

Fax: 650-941-1001

Clinic Hours:

Mon – Fri: 8am – 5pm

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Current Patients:
Call to schedule: (650) 941-1040
New Patients:

Contact Our IPM - Los Altos

IPM - Los Altos - Providers


John Welsh, MD

Dr. Welsh is a native of Northern California growing up in Menlo Park on the Peninsula and has lived here his entire life (except for four cold years on the East Coast for Medical School).  He is a graduate of the University of California, Berkeley in 1988 and then received his M.D in 1993 from the Dartmouth-Brown Program in Medicine.  Moving back home (and the warmer weather again!), he completed his Internship and then Residency in Physical Medicine & Rehabilitation (Physiatry) at Stanford University Medical Center in 1997 including being Chief Resident in his final year.  Dr. Welsh then stayed at Stanford for an additional year finishing a one year non-operative spinal pain management Fellowship in 1998 that was focused on adding to his skill set of spinal intervention procedures for complex pain management cases.


Vanessa Ortiz, MD

Dr. Ortiz knew she wanted to be a physician since she was 12 years old. She grew up in Silicon Valley, attending U.C. Berkeley for her undergraduate education and then U.C. Davis for her medical training before completing her residency in Physical Medicine and Rehabilitation at Stanford University in 1997. She is Board Certified in Physical Medicine & Rehabilitation.

Prior to moving to Integrated Pain Management, she worked in various practice settings, including private physiatry practice at Los Altos Spine and Sports for the past 15 years and private physiatry practice at Mills Peninsula Hospital in San Mateo prior to that. Her practice primarily focuses on the diagnosis and non-surgical treatment of spine conditions and spine pain management, with an emphasis on performing electro-diagnostic studies (Electromyography/Nerve Conduction Studies).  Her biggest job satisfaction comes from improving a patient’s functional ability, which ultimately leads to improving the quality of life for her patients.  She especially enjoys working alongside her associate, Dr. John Welsh, who she trained with at Stanford and who she has known for over 20 years.

During her spare time, Dr. Ortiz enjoys traveling with her husband and two children, playing classical piano and trekking through the Napa Valley wine country with friends. She is fluent in Spanish.


Angela Giertych, PT, DPT, CHWC

Dr. Angela Giertych earned a Doctorate of Physical Therapy at the University of California San Francisco and San Francisco State University and a certification in Health and Wellness Coaching from Wellcoaches. ​Through ​her clinical training and diverse patient care experiences​, she developed  a passion for empowering people through intrinsic motivation and the use of mindful behaviors for  lifelong wellness. She values the power of​ empathic communication, interdisciplinary collaboration, and courageous presence to uplift​ patients and providers alike. ​Angela champions well-being by illuminating patient strengths so they can overcome daily challenges and feel their very best. Looking toward creative innovations for the future of chronic pain care, she promotes impactful wellness solutions through personalized health management technologies.