Summary

Dr. Mark Northfield is an orthopedic surgeon who has dedicated over three decades to treating bone, joint, and muscle conditions. He earned his medical degree from Warren Alpert Medical School of Brown University and completed his residency at UCLA Medical Center. With 35 years of experience in orthopedic surgery, Dr. Northfield has developed extensive expertise in helping patients overcome musculoskeletal challenges. He provides care in English to patients throughout his practice.

Dr. Northfield practices at Saint Joseph Medical Group in Petaluma, California, and maintains hospital privileges at Petaluma Valley Hospital. He specializes in treating common conditions such as joint pain, knee problems, and osteoarthritis. His approach to patient care includes physical therapy, manual therapy, and strength training programs designed to restore mobility and function. Patients have given him an average rating of 3.8 out of 5 on Vitals, reflecting their experiences with his orthopedic care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.8
  • 35 years of experience
  • 23 insurance plans accepted
  • speaks English
  • Ucla Medical Center
  • 9 written reviews
  • 1 specialty
  • 17 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

Saint Joseph Medical Group

1496 Professional Dr Ste 601Petaluma, CA 94954
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 12:00 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 12:00 pm
SatClosed
SunClosed

Compare with Similar Doctors

Dr. Mark Robert Northfield, MD
Jay Parkin, MD
Jason Marengo, MD
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Dr. Mark Robert Northfield, MDJay Parkin, MDJason Marengo, MDDr. Michael Klassen, MD
Orthopedic SurgeryOrthopedic SurgeryOrthopedic SurgeryOrthopedic Surgery
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
2.2 
4.6 
4.9 
35 Years of Experience 38 Years of Experience 25 Years of Experience 37 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks English Speaks Spanish, English Speaks Spanish, Russian Speaks English
Petaluma , CAFairfield , CAVacaville , CAMonterey , CA
Med School: Warren Alpert Medical School Of Brown University Med School: Stanford University School Of Medicine Med School: Keck School Of Medicine Of The University Of Southern California Med School: David Geffen School of Medicine - UCLA
Current Profile
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Insurance Plans Accepted by Dr. Mark Robert Northfield

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Anthem Blue Cross
  • BLUE CROSS of CALIFORNIA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Blue Shield of California - HMO
  • Cigna
  • Community Health Options
  • Health Net - HMO
  • HealthPartners
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Meritain Health
  • Partnership HealthPlan of California
  • Providence Health Plans
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • Western Health Advantage
  • Western Health Advantage - HMO

Medical Specialties

Dr. Mark Robert Northfield has the following specialty

Specialty Expertise

Dr. Mark Robert Northfield has the following 17 areas of expertise

  • Arthroscopic Surgery (Arthroscopy)
  • Arthroscopy
  • Bone Fracture
  • Carpal Tunnel Syndrome
  • Herniated Disc
  • Hip Osteoarthritis
  • Hip Surgery
  • Hip Surgery (Hip Replacement Arthroplasty)
  • Joint Pain/Swelling
  • Joint Replacement
  • Knee Osteoarthritis
  • Knee Surgery (Knee Replacement Arthroplasty)
  • Laminectomy
  • Osteoarthritis
  • Scoliosis
  • Sports Medicine
  • Surgery

Certifications, License, & Education

35 Years Experience

Dr. Mark Robert Northfield holds an active medical license in the state of California.

Medical License

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

Education & Training

Residency

Completed their residency at Ucla Medical Center.

Medical School

Graduated from Warren Alpert Medical School Of Brown University in 1991.

NPI Number

Dr. Northfield's NPI number is 1861406316.

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Frequently Asked Questions

Does Dr. Mark Northfield accept my insurance?
You can see the insurance plans that Dr. Mark Northfield accepts on their Vitals profile.
Does Dr. Mark Northfield accept virtual/telehealth appointments?
Dr. Mark Northfield has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Mark Northfield speak?
Dr. Mark Northfield speaks English.
Where is Dr. Mark Northfield's office located?
Dr. Mark Northfield's office is located at 1496 Professional Dr Ste 601, Petaluma, CA, 94954.
Is Dr. Mark Northfield accepting new patients?
Dr. Mark Northfield is accepting new patients on Vitals. View Dr. Mark Northfield's profile on Vitals to make an appointment.

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