Mark H Flasar, M.D.
Gastroenterology Internal Medicine
Mark H Flasar is a Gastroenterology Internal Medicine specialist based in Annapolis, MD with over 26 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Mark H Flasar, M.D. practices as part of a group gastroenterologist practice in Annapolis, MD. He has been in practice for 26+ years. Among his Medicare patients, common conditions include high cholesterol, hypertension, and arthritis (per CMS data).
At a glance
- Uses generic medications more than 24% of reporting doctors in Maryland
- Virtual visits available — no app or travel required
Older · 3873dNPPES updated 2015-10-16 · verify NPI on CMS · Verify license at Maryland Board of Physicians
Contact & Location
Practice Location
820 Bestgate Rd Suite 2a, Annapolis, MD 21401-3404
How Does This Doctor Compare?
Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.
Generic Rx
↑ Higher = better81.7%
Maryland avg: 83.4 · US avg: 82.8
⚠ Lower than most doctors nationally(-1.1 pts)
How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.
Medicare Patients
779
Unique beneficiaries
High volumePrescription Recipients
198
Patients prescribed
Prescriptions Written
821
Total claims
Total Medicare drug cost: $2.01M
Percentile rankings compared against 2,391 reporting peers in Maryland.
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%↓ Fewer patients than average (-1%) — less common here
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 (-8%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ Fewer patients than average (-10%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-11%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
Diseases involving abnormal cell growth with potential to spread to other body parts
US avg: 20.8%↓ Fewer patients than average (-1%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
$38.5k received from industry
134 transactions reported in 2024 ·Very High 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 Mark H Flasar's NPI.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
26 years in practice
Experienced
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Mailing address
820 Bestgate Rd Suite 2b, Annapolis, MD 21401-3404
Differs from practice location
Virtual Internal Medicine Care With Mark H Flasar
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark H Flasar for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Annapolis 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 Mark H Flasar
NPI records show Dr. Flasar as active with telehealth listed in Annapolis, MD. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (410) 224-2116.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · CMS Physician Comparator. See Data Methodology.
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Contact Mark H Flasar
Practice Location
820 Bestgate Rd Suite 2a, Annapolis, MD 21401-3404
Mailing Address
820 Bestgate Rd Suite 2b, Annapolis, MD 21401-3404
This is a provider directory. Contact the office directly to schedule appointments.
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