Summary

Dr. Timothy Johnston is a family medicine and emergency medicine physician who earned his medical degree from the University of New Mexico School of Medicine. He completed his residency training at Merced Community Medical Center, establishing strong roots in the Central Valley community. With 41 years of clinical experience, Dr. Johnston brings extensive expertise to patient care. He is fluent in Portuguese and Spanish, enabling him to serve diverse patient populations.

Dr. Johnston practices at multiple locations throughout Merced and is affiliated with Mercy Medical Center and Valley Children's Healthcare in Madera. His clinical focus includes pregnancy care and managing conditions such as antepartum depression and vaginal bleeding during pregnancy. He performs developmental screenings and autism spectrum disorder evaluations for pediatric patients. Dr. Johnston also provides fetal ultrasound services as part of his comprehensive maternal care. Patients rate him 4.1 out of 5 stars on Vitals.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.1
  • 41 years of experience
  • speaks Portuguese, Spanish
  • Merced Community Medical Center
  • 5 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 5 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Timothy Scott Johnston has 5 locations

Timothy S Johnston Md Pc

3349 G St Ste FMerced, CA 95340
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Mercy Medical Center

333 Mercy AveMerced, CA 95340

Timothy S Johnston Md And Associates

3170 Collins Dr Ste BMerced, CA 95348
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Valley Childrens Healthcare

9300 Valley Childrens PlMadera, CA 93636

Timothy S Johnston Md And Associates

410 E Yosemite Ave Ste BMerced, CA 95340
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Timothy Scott Johnston, MDDr. Shakeilla Smithbey, MDDr. Robert Tracy, DODr. Michelle Simi, MD
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
4.3 
41 Years of Experience 15 Years of Experience 15 Years of Experience 32 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Portuguese, Spanish Speaks English Speaks English
Merced , CAHouston , TXLos Angeles , CAOrinda , CA
Med School: University Of New Mexico School Of Medicine Med School: Howard University College Of Medicine Med School: Lake Erie College Of Osteopathic Medicine Bradenton Campus Med School: University Of Chicago Division Of The Biological Sciences The Pritzker School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Timothy Scott Johnston

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Timothy Scott Johnston has the following 2 specialties

Specialty Expertise

Dr. Timothy Scott Johnston has the following 8 areas of expertise

  • Check-up
  • Contraception
  • Emergency Medicine
  • Family Planning
  • Immunization
  • Influenza
  • Osteoporosis
  • Weight Loss

Certifications, License, & Education

41 Years Experience

Dr. Timothy Scott Johnston holds an expired medical license in the state of California.

Medical License

Medical Doctor with an expired medical license in the state of California that expired in 2026.

Education & Training

Residency

Completed their residency at Merced Community Medical Center.

Medical School

Graduated from University Of New Mexico School Of Medicine in 1985.

NPI Number

Dr. Johnston's NPI number is 1528097847.

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Frequently Asked Questions

How can I make an appointment with Dr. Timothy Johnston?
You can find contact information for Dr. Timothy Johnston here on Vitals.
Does Dr. Timothy Johnston accept virtual/telehealth appointments?
Dr. Timothy Johnston has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Timothy Johnston's office located?
Dr. Timothy Johnston's office is located at 3349 G St Ste F, Merced, CA, 95340.
Which hospitals is Dr. Timothy Johnston affiliated with?
Dr. Timothy Johnston is affiliated with Mercy Medical Center and Valley Childrens Healthcare.
What languages does Dr. Timothy Johnston speak?
Dr. Timothy Johnston speaks Portuguese and Spanish.

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