Belton Douglas Hallmark, M.D.
Belton Douglas Hallmark, M.D. has practiced family medicine for 47+ years, working in group practice. He graduated from University of Texas Medical Branch at Galveston in 1979 and has 47+ years of clinical experience. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).
At a glance
- Uses generic medications more than 34% of reporting doctors in Colorado
- Virtual visits available — no app or travel required
Older · 1030dNPPES updated 2023-07-11 · verify on CMS
Contact & Location
Practice Location
1189 S Perry St Ste 230, Castle Rock, CO 80104-1959
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
MIPS Score
202373.69/100
Colorado avg: 87.4 · US avg: 83.6
⚠ Lower than most doctors nationally(-9.9 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Opioid Rx
↓ Lower = better5.76%
Colorado avg: 6.1 · US avg: 5.1
⚠ Lower than most doctors nationally(+0.7 pts)
5.76% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better83.8%
Colorado avg: 81.7 · US avg: 82.8
✓ Higher than most doctors nationally(+1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
259
Unique beneficiaries
Standard volumePrescription Recipients
260
Patients prescribed
Prescriptions Written
4,493
Total claims
Total Medicare drug cost: $664k
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 High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+4%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-2%) — less common here
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
US avg: 31.7%↓ Fewer patients than average (-6%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-13%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$2.7k received from industry
85 transactions reported in 2024 ·Moderate 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 2024, attributed to Belton Douglas Hallmark's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1979
University of Texas Medical Branch
Board certified · Nov 1, 2021
CMS-verified certification date
47 years in practice
Senior practitioner
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Taxonomy: 207Q00000X
Education & Training
University of Texas Medical Branch at Galveston (Class of 1979)
Mailing address
Po Box 17837, Belfast, ME 04915-4073
Differs from practice location
Primary hospital affiliation: Critical Access Hospitals
CMS Certification Number: 391317
View hospital on Medicare Care CompareVirtual Family Medicine Care With Belton Douglas Hallmark
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Belton Douglas Hallmark for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Castle Rock 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 Belton Douglas Hallmark
Dr. Hallmark is listed as active in the NPI registry with telehealth listed in Castle Rock, CO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (303) 688-3434.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Belton Douglas Hallmark
Practice Location
1189 S Perry St Ste 230, Castle Rock, CO 80104-1959
Mailing Address
Po Box 17837, Belfast, ME 04915-4073
This is a provider directory. Contact the office directly to schedule appointments.
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