Sleep Medicine Doctors (Internal Medicine) in Massachusetts
Data updated monthly · Last refresh October 2026
32 Sleep Medicine (Internal Medicine) providers practice in Massachusetts, including 20 (63%) offering telehealth. The largest concentration is in Boston. 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.
32providers
20telehealth
Bostontop city
Sleep Medicine (Internal Medicine) by city in Massachusetts
Choose a city to see providers there.
Where Sleep Medicine Doctors (Internal Medicine) in Massachusetts practice
From CMS Medicare enrollment records covering 21 of the 32 providers listed here (66%). Providers who do not bill Medicare are not included in these figures.
10%solo or small practice (under 10 clinicians)
0%mid-size group (10 to 99)
90%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Sleep Medicine Doctors (Internal Medicine) | All clinicians in group | Main city |
| Brigham and Womens Physicians Organization Inc. | 9 | 2,931 | Boston |
| Umass Memorial Medical Group Inc. | 2 | 2,494 | Worcester |
| Harvard Medical Faculty Phys at Beth Israel Deaconess Med Ctr Inc. | 2 | 1,693 | Boston |
| Evans Medical Foundation Inc. | 2 | 525 | Boston |
| Children's Hospital Pediatric Associates, Inc. | 2 | 333 | Boston |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Sleep Medicine Doctors (Internal Medicine) affiliated |
| Brigham and Women Faulkner Hospital | Jamaica Plain | Nonprofit | 5 of 5 | 9 |
| Brigham and Women's Hospital | Boston | Nonprofit | 5 of 5 | 5 |
| Beth Israel Deaconess Hospital - Needham | Needham | Nonprofit | 5 of 5 | 3 |
| Beth Israel Deaconess Medical Center | Boston | Nonprofit | 3 of 5 | 2 |
| Massachusetts General Hospital | Boston | Nonprofit | 5 of 5 | 2 |
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 Massachusetts
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. Chloe Deng, D.O.Auburn, MA · $1,326 in drug and device payments (2025) · Telehealth ·
(508) 832-9646 Dr. Wassim Assaf, MDAuburn, MA · $47 in drug and device payments (2025) · Telehealth ·
(774) 772-7058 Dr. Amit Anand, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 789-2545 Dr. Anjali Ahn, M.D.Boston, MA · $183 in drug and device payments (2025) · Telehealth ·
(617) 667-5864 Dr. Aylin Ozsancak, M.D.Boston, MA · No drug or device payments recorded (2025) ·
(617) 636-7689 Dr. Daniel Gottlieb, M.D.Boston, MA · $3,900 in drug and device payments (2025) ·
(857) 203-6478 Dr. Elizabeth BengeBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-5500 Dr. Eric Heckman, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 638-7480 Dr. Khalid Ismail, MDBoston, MA · $65 in drug and device payments (2025) · Telehealth ·
(617) 636-5000 Dr. Lawrence Epstein, M.D.Boston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 983-7280 Dr. Mehtap Haktanir Abul, M.D.Boston, MA · $1,193 in drug and device payments (2025) ·
(617) 667-7000 Dr. Nidhi Jain, M.B.B.S.Boston, MA · No drug or device payments recorded (2025) ·
(617) 636-6366 Dr. Nilika Chaudhary, MDBoston, MA · $142 in drug and device payments (2025) · Telehealth ·
(617) 983-7280 Dr. Robert Thomas, M.D.Boston, MA · $1,717 in drug and device payments (2025) · Telehealth ·
(617) 667-5864 Dr. Rohit Budhiraja, M.D.Boston, MA · $1,600 in drug and device payments (2025) · Telehealth ·
(520) 792-1450 Dr. Salma Batool-anwar, MBBS, MPHBoston, MA · $124 in drug and device payments (2025) · Telehealth ·
(617) 983-7489 Dr. Samia Ayub, M.B.B.SBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-5500 Dr. Seyni Gueye-ndiaye, M.D. Dr. Shih Hao Lin, MDBoston, MA · No drug or device payments recorded (2025) ·
(319) 512-0169 Dr. Sogol Javaheri, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 732-9300 Dr. Stuart Quan, MDBoston, MA · No drug or device payments recorded (2025) · Telehealth ·
(617) 983-7489 Dr. Syed Moin Hassan, M.D.Boston, MA · $299 in drug and device payments (2025) · Telehealth ·
(813) 944-0421 Dr. Ting-hsu Chen, MDBoston, MA · No drug or device payments recorded (2025) ·
(857) 203-6478 Dr. David Wellman, M.D.Brighton, MA · $335 in drug and device payments (2025) · Telehealth ·
(617) 783-1441 Dr. Joseph Walek, MDGardner, MA · No drug or device payments recorded (2025) ·
(978) 630-5020 Dr. Neil Bach, MDGreenfield, MA · No drug or device payments recorded (2025) ·
(413) 774-2222 Dr. Neil Shore, MDSalem, MA · No drug or device payments recorded (2025) ·
(978) 745-4489 Dr. Rakesh Gupta, M.D.Somerset, MA · $26 in drug and device payments (2025) · Telehealth ·
(508) 675-7090 Dr. Eva Mok, M.D.Springfield, MA · $96 in drug and device payments (2025) · Telehealth ·
(413) 794-5600 Dr. Stephen Derose, M.D., M.S.H.S.Springfield, MA · No drug or device payments recorded (2025) ·
(413) 794-5600 Dr. Yifeng Lu, DOSpringfield, MA · $709 in drug and device payments (2025) ·
(413) 794-5600 Dr. Christine Fitzgibbons, M.D.Westborough, MA · No drug or device payments recorded (2025) · Telehealth ·
(508) 366-1120 Common questions
How many Sleep Medicine (Internal Medicine) providers are in Massachusetts?There are 32 Sleep Medicine (Internal Medicine) providers with active NPI records practicing in Massachusetts, according to federal NPPES data refreshed monthly.
Do Sleep Medicine (Internal Medicine) providers in Massachusetts offer telehealth?Yes. 20 of the 32 Sleep Medicine (Internal Medicine) providers in Massachusetts (about 63%) report offering telehealth services in CMS data.
Which cities in Massachusetts have the most Sleep Medicine (Internal Medicine) providers?Boston (21), Springfield (3), Auburn (2) have the highest concentration of Sleep Medicine (Internal Medicine) providers in Massachusetts.
How many Sleep Medicine (Internal Medicine) providers in Massachusetts received drug or device company payments?16 of 32 Sleep Medicine (Internal Medicine) providers in Massachusetts (50%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
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.
Do most Sleep Medicine Doctors (Internal Medicine) in Massachusetts work in independent practices or large health systems?Among 21 Sleep Medicine Doctors (Internal Medicine) in Massachusetts enrolled in Medicare, 10% bill through a solo or small practice with fewer than 10 clinicians, 0% through a mid-size group of 10 to 99, and 90% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Sleep Medicine Doctors (Internal Medicine) in Massachusetts work at?According to CMS facility affiliation records, the Massachusetts hospitals where the most Sleep Medicine Doctors (Internal Medicine) hold privileges are Brigham and Women Faulkner Hospital in Jamaica Plain; Brigham and Women's Hospital in Boston; Beth Israel Deaconess Hospital - Needham in Needham.
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