Susan Chang, MD
Sleep Medicine (Internal Medicine) Physician · Boston, MA
Susan Chang, MD is a sleep medicine (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1699942763, issued on May 8, 2008. Check the license on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Susan Chang
- Credential
- MD
- Primary taxonomy
- Sleep Medicine (Internal Medicine) Physician 207RS0012X
- Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (646) 269-6860
- Enumerated
- May 8, 2008
- Entity
- Type 1 · individual
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amin AalipourStudent in an Organized Health Care Education/Training Program1902483258
- Emily Aaronson, M.D.Emergency Medicine Physician1962791558
- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Susan Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
96% fewer Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024
46 Medicare Part D claims for 25 beneficiaries, against an average of 1,288 among the 717 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $113.13
2 payments, mostly food and beverage; the largest payer was Idorsia Pharmaceuticals US Inc. The 567 providers of this specialty with any payment received $4,175.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sleep Medicine (Internal Medicine) Physician providers in Massachusetts
There are 17 sleep medicine (internal medicine) physician records in Massachusetts.
Other sleep medicine (internal medicine) physician records in Massachusetts
- Essam Ansari, M.D.Methuen, MA1992812572
- Mushtaque Chachar, MDNew Bedford, MA1891903712
- Steven Davis, M.D.Worcester, MA1528041159
- Chloe Deng, D.O.Auburn, MA1033735428
- Stephen Derose, M.D., M.S.H.S.Springfield, MA1710272810
- Sean Gilman, M.D.Boston, MA1003916065
- Nathaniel Gordon, M.D.Boston, MA1700266988
- Daniel Gottlieb, M.D.Boston, MA1407813124
- Khalid Ismail, MDBoston, MA1649287277
- Inna Ketsler, M.D.Leominster, MA1417905720
Common questions
What is Susan Chang, MD's NPI number?
Susan Chang, MD's National Provider Identifier (NPI) is 1699942763, issued on May 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Susan Chang, MD located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (646) 269-6860. Providers update this record themselves, so call before visiting.
How can I verify Susan Chang, MD's license?
Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Susan Chang, MD prescribe under Medicare Part D?
In 2024, Susan Chang, MD had 46 Medicare Part D claims for 25 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 1,288. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.