John M Barnett, MD
John M Barnett is a Hematology & Oncology specialist based in Longmont, CO with over 26 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
John M Barnett, MD has been part of the Longmont medical community since 2006 in group practice. He graduated from Southern Illinois University School of Medicine in 2000 and has 26+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and cancer (per CMS claims data). CMS MIPS quality score: 84.81/100 (2023).
At a glance
- Prescribes opioids less than 40% of reporting doctors in Colorado
- Federal MIPS score higher than 28% of MIPS-scored doctors in Colorado
- Virtual visits available — no app or travel required
Older · 1053dNPPES updated 2023-07-06 · verify NPI on CMS · Verify license at Colorado Medical Board
Contact & Location
Practice Location
1760 E Ken Pratt Blvd Ste 302, Longmont, CO 80504-5311
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively.
MIPS Score
202384.81/100
Colorado avg: 87.4 · US avg: 83.6
✓ Higher than most doctors nationally(+1.2 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better2.49%
Colorado avg: 6.1 · US avg: 5.1
✓ Higher than most doctors nationally(-2.6 pts)
Typical range among reporting doctors in Colorado2.49% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Medicare Patients
559
Unique beneficiaries
High volumePrescription Recipients
270
Patients prescribed
Prescriptions Written
1,845
Total claims
Total Medicare drug cost: $4.45M
Percentile rankings compared against 1,617 reporting peers in Colorado.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Cancer.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-7%) — less common here
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-10%) — less common here
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↑ More patients than average (+31%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-8%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-1%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-4%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-10%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$96 received from industry
1 transaction reported in 2018 ·Low tier
Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.
Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2018, attributed to John M Barnett's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 2000
Southern Illinois University School of Medicine
Board certified · Jul 5, 2023
Self-reported via NPPES
26 years in practice
Experienced
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.
Taxonomy: 207RH0003X
Education & Training
Southern Illinois University School of Medicine (Class of 2000)
Mailing address
7951 E Maplewood Ave Suite 300, Greenwood Village, CO 80111
Differs from practice location
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 390307
View hospital on Medicare Care CompareVirtual Hematology & Oncology Care With John M Barnett
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with John M Barnett for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Longmont required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about John M Barnett
Dr. Barnett is listed as active in the NPI registry with telehealth listed in Longmont, CO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (303) 684-1900.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2018 · CMS Physician Comparator. See Data Methodology.
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Contact John M Barnett
Practice Location
1760 E Ken Pratt Blvd Ste 302, Longmont, CO 80504-5311
Mailing Address
7951 E Maplewood Ave Suite 300, Greenwood Village, CO 80111
This is a provider directory. Contact the office directly to schedule appointments.
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