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Sleep Medicine Doctors (Internal Medicine) in Delaware

Data updated monthly · Last refresh October 2026

4 Sleep Medicine (Internal Medicine) providers practice in Delaware, including 3 (75%) offering telehealth. The largest concentration is in Newark. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.

4providers
3telehealth
Newarktop city

Sleep Medicine (Internal Medicine) by city in Delaware

Choose a city to see providers there.

Sleep Medicine (Internal Medicine) in Newark2 providers
Sleep Medicine (Internal Medicine) in Millsboro1 providers
Sleep Medicine (Internal Medicine) in Dover1 providers

Where Sleep Medicine Doctors (Internal Medicine) in Delaware practice

From CMS Medicare enrollment records covering 4 of the 4 providers listed here (100%). Providers who do not bill Medicare are not included in these figures.

Largest practice groups

Group (as registered with Medicare)Sleep Medicine Doctors (Internal Medicine)All clinicians in groupMain city
Delaware Sleep Disorder Centers, LLC212Wilmington

Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.

Sleep Medicine (Internal Medicine) providers in Delaware

Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.

Dr. John Coll, DO
Dover, DE · $100 in drug and device payments (2025) · Telehealth · (302) 652-5109
Dr. Sherin Howett, DO
Millsboro, DE · $476 in drug and device payments (2025) · Telehealth · (302) 648-2099
Dr. Anthony Vasile, D.O.
Newark, DE · $318 in drug and device payments (2025) · (302) 449-9314
Dr. Christina Lee, MD
Newark, DE · $149 in drug and device payments (2025) · Telehealth · (302) 623-0650

Common questions

How many Sleep Medicine (Internal Medicine) providers are in Delaware?

There are 4 Sleep Medicine (Internal Medicine) providers with active NPI records practicing in Delaware, according to federal NPPES data refreshed monthly.

Do Sleep Medicine (Internal Medicine) providers in Delaware offer telehealth?

Yes. 3 of the 4 Sleep Medicine (Internal Medicine) providers in Delaware (about 75%) report offering telehealth services in CMS data.

Which cities in Delaware have the most Sleep Medicine (Internal Medicine) providers?

Newark (2), Millsboro (1), Dover (1) have the highest concentration of Sleep Medicine (Internal Medicine) providers in Delaware.

Where does this data come from?

Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.

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Related

Sources: NPPES (CMS), Doctors and Clinicians national files, CMS Open Payments 2025. Updated monthly. Records are public federal data and are not verified credentials, licensure checks, or endorsements. This directory is informational and not medical advice. How we build this directory. Are you a Sleep Medicine (Internal Medicine) in Delaware? Get featured.