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Summary: - Huntington Health Physicians appears to be tied to Huntington Hospital (Huntington Health) in Pasadena, CA, a nonprofit 534-bed hospital with a Level II Trauma Center located at 100 W California Blvd, Pasadena (near San Marino). - The provided information does not list a separate San Marino location or a distinct San Marino practice affiliated with Huntington Health Physicians. - Huntington Health is an affiliate of Cedars-Sinai and operates as a nonprofit community hospital serving the San Gabriel Valley region. If you’re specifically seeking a Huntington Health Physicians location in San Marino, this source does not confirm such a site. For precise San Marino-affiliated clinics or physicians, please provide more details or check Huntington Health’s official site or a current physician directory.

Clinic Type

Primary Care

Address

375 Huntington Dr., Suite G, San Marino, CA 91108

Phone

(626) 441-4231

Email

patient experience@huntingtonhealth.org

Opening Hours

Monday – Friday, 8:00am – 5:00pm

Services Offered

  • Primary Care
  • Family Medicine
  • Pediatrics? (not explicitly stated)
  • Physician office with multiple providers

Team

  • Mu-Chien William Chiang — DO
  • Sonya Ehresmann — MD
  • Chien Fang — MD
  • Ya-Gin Hanna Huang — MD
  • Jennifer Oh — NP
  • John G. Wear — DO

Insurance & Payment

Languages Spoken

  • Chinese
  • Spanish
  • Tagalog

Current Offers

New patient welcome

FAQs

What are the hours of operation?

Monday – Friday, 8:00am – 5:00pm.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades (for Dr. Mu-Chien Chiang): 4.6 out of 5 stars (based on 9 ratings) (9 ratings)
  • Healthgrades (for Dr. Chien Fang): 3.22 out of 5 (likelihood to recommend) (9 ratings)

Patients praise

  • Physicians perceived as attentive, knowledgeable, and expert in their fields
  • Some patients report positive outcomes and feeling heard by their providers
  • Long-standing presence in the community for over 20 years

Common complaints

  • Reports of rude, impatient, or unhelpful office staff
  • Difficulties with appointment scheduling and being rushed during visits
  • Concerns regarding poor communication, including failure to discuss test results properly
  • Instances of unprofessional behavior or lack of empathy from providers
  • Inaccurate medical documentation and concerns over comprehensive care

"I had to call this doctor several times to get the results and when I finally got his assistant... she was very rude... one of the worst doctors I've ever had."

Healthgrades (Dr. Mu-Chien Chiang review)

"Dr. Fang is wonderful. Her knowledge of medicine is at the expert level!! She always listens to the patient and is very good at communication."

Healthgrades (Dr. Chien Fang review)

"I left confused, distressed, and unsure of what had just happened... I later requested my medical records, hoping to find some sort of rational explanation... I discovered multiple statements that were not only inaccurate... things I never said or did."

WebMD (Dr. Sonya Ehresmann review)

Synthesized from public review platforms as of Jul 10, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 10, 2026.

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