Summary

Dr. Mark Greenbaum is a family medicine physician with additional expertise in emergency medicine. He earned his medical degree from George Washington University School of Medicine & Health Sciences and completed his residency at Antelope Valley Hospital. With 45 years of practice experience, Dr. Greenbaum brings extensive clinical knowledge to his patient care. He is fluent in both English and Spanish.

Dr. Greenbaum is affiliated with Dominican Hospital and practices at locations in Santa Cruz and Sacramento, California. His dual specialty training allows him to provide comprehensive primary care while also handling urgent medical situations. Patients have given him an average rating of 3.4 on Vitals. His extensive experience spanning nearly five decades has equipped him to care for patients across a wide range of health concerns and medical needs.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.4
  • 45 years of experience
  • 18 insurance plans accepted
  • speaks English, Spanish
  • Antelope Valley Hospital
  • 3 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Mark Roy Greenbaum has 3 locations

Palo Alto Medical Foundation Santa Cruz Main Clinic

2025 Soquel AveSanta Cruz, CA 95062
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
Sat8:00 am - 9:00 pm
Sun8:00 am - 9:00 pm

Ose Adams Medical Pavilion

2825 Capitol AveSacramento, CA 95816

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Dr. Mark Roy Greenbaum, MDSherry Amankwa, MSN, APRN, FNP-CDr. Lubna Isho, DOJennifer Recker, APRN, FNP-BC
Family MedicineFamily MedicineFamily MedicineFamily Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.4 
4.7 
45 Years of Experience 6 Years of Experience 25 Years of Experience 17 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks Arabic, English, Spanish Speaks English
Santa Cruz , CABaltimore , MDPomona , CAChicago , IL
Med School: George Washington University School Of Medicine & Health Sciences Med School: Western Univ Health Sci College Of Osteopathic Medicine Of The Pacific
Current Profile
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Insurance Plans Accepted by Dr. Mark Roy Greenbaum

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna - HMO
  • AllCare Health
  • AllCare Health - IPA
  • BLUE CROSS of CALIFORNIA - HMO
  • Blue Shield of California
  • Central California Alliance for Health
  • Central California Alliance for Health - Medicaid (Managed)
  • Health Net - HMO
  • Humana
  • Magellan Health
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Santa Clara Family Health Plan
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UPMC Health Plan
  • Western Health Advantage - HMO

Medical Specialties

Dr. Mark Roy Greenbaum has the following 2 specialties

Specialty Expertise

Dr. Mark Roy Greenbaum has the following 8 areas of expertise

  • Check-up
  • Contraception
  • Emergency Medicine
  • Family Planning
  • Immunization
  • Influenza
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

45 Years Experience

Dr. Mark Roy Greenbaum 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 2025.

Education & Training

Residency

Completed their residency at Antelope Valley Hospital.

Medical School

Graduated from George Washington University School Of Medicine & Health Sciences in 1981.

NPI Number

Dr. Greenbaum's NPI number is 1609882331.

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Frequently Asked Questions

Does Dr. Mark Greenbaum accept my insurance?
You can see the insurance plans that Dr. Mark Greenbaum accepts on their Vitals profile.
What languages does Dr. Mark Greenbaum speak?
Dr. Mark Greenbaum speaks English and Spanish.
Is Dr. Mark Greenbaum accepting new patients?
Dr. Mark Greenbaum is accepting new patients on Vitals. View Dr. Mark Greenbaum's profile on Vitals to make an appointment.
Does Dr. Mark Greenbaum accept virtual/telehealth appointments?
Dr. Mark Greenbaum has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Mark Greenbaum affiliated with?
Dr. Mark Greenbaum is affiliated with Dominican Hospital.

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