Anthony Mark Masi, M.D.
Sleep Medicine Internal Medicine
Anthony Mark Masi, M.D. runs an independent sleep medicine internal medicine specialist practice in Ballwin, MO. Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1987), he has been practicing for over 39 years. CMS Medicare data shows his patients commonly have hypertension, high cholesterol, and arthritis.
At a glance
- Uses generic medications more than 90% of reporting doctors in Missouri
- Virtual visits available — no app or travel required
Older · 5085dNPPES updated 2012-06-06 · verify NPI on CMS · Verify license at Missouri Board of Registration for the Healing Arts
Contact & Location
Practice Location
13975 Manchester Rd Suite 7, Ballwin, MO 63011-4500
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%↑ More patients than average (+5%) — a focus area for this doctor
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+5%) — a focus area for this doctor
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-1%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-1%) — less common here
Conditions affecting emotional state, including depression and bipolar disorder
A mood disorder causing persistent sadness and loss of interest in activities
US avg: 31.8%↓ Fewer patients than average (-5%) — less common here
Excessive worry or fear that interferes with daily life
US avg: 34.1%↓ 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 (-7%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1987
University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
39 years in practice
Senior practitioner
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
Taxonomy: 207RS0012X
Education & Training
University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (Class of 1987)
Virtual Sleep Medicine Care With Anthony Mark Masi
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Anthony Mark Masi for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Ballwin required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Anthony Mark Masi
NPI records show Dr. Masi as active with telehealth listed in Ballwin, MO. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (636) 391-1222.
Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.
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Contact Anthony Mark Masi
Practice Location
13975 Manchester Rd Suite 7, Ballwin, MO 63011-4500
This is a provider directory. Contact the office directly to schedule appointments.
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