Summary

Dr. J. Mark Barnett specializes in hematology and oncology, bringing 26 years of experience to cancer care and blood disorders. He earned his medical degree from Southern Illinois University School of Medicine and holds certification in internal medicine from the American Board of Internal Medicine. Dr. Barnett communicates with patients in English.

Dr. Barnett practices at Rocky Mountain Cancer Centers in Longmont, Colorado, where he focuses on treating various forms of prostate cancer, including advanced and recurrent cases. He performs essential diagnostic procedures such as complete blood counts and blood tests to monitor patient health throughout treatment. Patients have given him an average rating of 3.4 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.4
  • 26 years of experience
  • 39 insurance plans accepted
  • speaks English
  • Southern Illinois Univ School of Medicine
  • 1 written review
  • 2 specialties
  • 14 areas of expertise
  • 1 board certification
  • 1 office location
  • Male

Patients’ Perspective

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

Office Location

Rocky Mountain Cancer Centers - Longmont

1760 E Ken Pratt Blvd Ste 302Longmont, CO 80504
Mon7:30 am - 4:30 pm
Tue7:30 am - 4:30 pm
Wed7:30 am - 4:30 pm
Thu7:30 am - 4:30 pm
Fri7:30 am - 4:30 pm
SatClosed
SunClosed

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J. Mark Barnett, MDDr. Catherine Elizabeth Klein, MDDr. Antonio Jimeno Largo, MDDr. Stuart E Lind, MD
HematologyOncologyOncologyOncology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.4 
3.7 
26 Years of Experience 49 Years of Experience 28 Years of Experience 50 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Russian, Spanish, English Speaks Spanish, Russian, English Speaks Spanish, Russian, English
Longmont , COAurora , COAurora , COAurora , CO
Med School: Southern Illinois Univ School of Medicine Med School: Univ Of Chicago Division Of Biological Sciences Pritzker School Of Medicine Med School: Universidad De Valladolid Facultad De Medicina Med School: New York University School Of Medicine
Current Profile
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Insurance Plans Accepted by J. Mark Barnett

  • AARP
  • AARP - Medicare
  • AARP - PPO
  • Aetna
  • Anthem Blue Cross
  • Anthem Blue Cross Blue Shield
  • Blue Cross Blue Shield
  • CHAMPVA
  • Cigna
  • Cigna-HealthSpring
  • Clear Spring Health
  • Colorado Access
  • Family Health Network
  • GEHA
  • GEHA - HMO
  • GEHA - PPO
  • Golden Rule - PPO
  • HealthPartners
  • HealthPartners - PPO
  • Humana
  • Humana - HMO
  • Humana - Medicare (Advantage HMO)
  • Kaiser Permanente
  • Medica - POS
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medical Mutual
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Optum Health
  • Tricare
  • Triwest Healthcare Alliance
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare - POS
  • UnitedHealthcare - PPO

Medical Specialties

J. Mark Barnett has the following 2 specialties

Specialty Expertise

J. Mark Barnett has the following 14 areas of expertise

  • Acute Myeloid Leukemia
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Hodgkin's Lymphoma
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma
  • Oncology

Certifications, License, & Education

26 Years Experience

J. Mark Barnett holds an active medical license in the state of Colorado. They are board certified in Internal medicine by the American Board of Internal Medicine.

Board Certifications

Board certified in Internal medicine by the American Board of Internal Medicine.

Medical License

Medical Doctor with an active medical license in the state of Colorado that expires in 2027.

Education & Training

Medical School

Graduated from Southern Illinois Univ School of Medicine in 2000.

NPI Number

J. Mark Barnett's NPI number is 1952341273.

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Frequently Asked Questions

Does J. Mark Barnett accept my insurance?
You can see the insurance plans that J. Mark Barnett accepts on their Vitals profile.
Where is J. Mark Barnett's office located?
J. Mark Barnett's office is located at 1760 E Ken Pratt Blvd Ste 302, Longmont, CO, 80504.
How can I make an appointment with J. Mark Barnett?
You can find contact information for J. Mark Barnett here on Vitals.
What languages does J. Mark Barnett speak?
J. Mark Barnett speaks English.
Is J. Mark Barnett accepting new patients?
J. Mark Barnett is accepting new patients on Vitals. View J. Mark Barnett's profile on Vitals to make an appointment.

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