Collin Dempsey Cullen, MD
Collin Dempsey Cullen is an Internal Medicine specialist based in Washington, DC with over 33 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: PEDIATRIC MEDICINE
Collin Dempsey Cullen, MD has been part of the Washington medical community since 2006 in group practice. Trained at Georgetown University School of Medicine (class of 1993), he has been practicing for over 33 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.
At a glance
- Prescribes opioids less than 39% of reporting doctors in District of Columbia
- Uses generic medications more than 79% of reporting doctors in District of Columbia
- Virtual visits available — no app or travel required
Older · 1459dNPPES updated 2022-05-26 · verify NPI on CMS · Verify license at DC Board of Medicine
Contact & Location
Practice Location
5410 Connecticut Ave Nw Ste 117, Washington, DC 20015-2831
How Does This Doctor Compare?
Based on Medicare data, this doctor prescribes opioid pain medications conservatively, favors affordable generic drugs over brand-name ones.
Opioid Rx
↓ Lower = better0.57%
District of Columbia avg: 3.8 · US avg: 5.1
✓ Higher than most doctors nationally(-4.5 pts)
0.57% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.
Generic Rx
↑ Higher = better91.3%
District of Columbia avg: 80.4 · US avg: 82.8
✓ Higher than most doctors nationally(+8.5 pts)
Better than 79% of reporting doctors in District of ColumbiaHow often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
282
Unique beneficiaries
Standard volumePrescription Recipients
251
Patients prescribed
Prescriptions Written
3,326
Total claims
Total Medicare drug cost: $368k
Percentile rankings compared against 449 reporting peers in District of Columbia.
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 Arthritis.
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-24%) — less common here
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↓ Fewer patients than average (-25%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-13%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$261 received from industry
12 transactions reported in 2024 ·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 2024, attributed to Collin Dempsey Cullen's NPI.
Social Vulnerability Index: 0.31 / 1.00
Below-average vulnerabilityHe practices in a community where the CDC measures social vulnerability across socioeconomic status, household composition, racial/ethnic minority status, and housing/transportation factors. A higher index indicates more residents may face barriers accessing care.
Source: CDC/ATSDR Social Vulnerability Index.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1993
Georgetown University School of Medicine
Board certified · May 25, 2022
Self-reported via NPPES
33 years in practice
Senior practitioner
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Taxonomy: 207R00000X
Education & Training
Georgetown University School of Medicine (Class of 1993)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 500026
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Collin Dempsey Cullen
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Collin Dempsey Cullen for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Washington 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 Collin Dempsey Cullen
Dr. Cullen is listed as active in the NPI registry with telehealth listed in Washington, DC. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (202) 966-2828.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator · HRSA HPSA · CDC SVI. See Data Methodology.
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Contact Collin Dempsey Cullen
Practice Location
5410 Connecticut Ave Nw Ste 117, Washington, DC 20015-2831
Mailing Address
5410 Connecticut Ave Nw Ste 117, Washington, DC 20015-2831
This is a provider directory. Contact the office directly to schedule appointments.
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