Dr. William L. Hwang, MD, PhD
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2015
- Practice address
- 55 Fruit Street, Boston, MA 02114
- Practice phone
- Call (617) 726-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Hwang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. William L. Hwang is a radiation oncologist in Boston, Massachusetts
Dr. Hwang practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Hwang's NPI, 1073994489, was assigned on June 11, 2015. Dr. Hwang graduated from Harvard Medical School in 2015. Dr. Hwang holds Massachusetts license 274104.
- NPI
- 1073994489NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557679750
- NPI enumeration date
- June 11, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William L. Hwang practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Hwang's primary practice is Massachusetts General Hospital, at 55 Fruit Street, Boston, MA 02114 in Suffolk County. The practice phone is (617) 726-2000.
- Massachusetts General Hospital55 Fruit Street, Boston, MA 02114 · Suffolk CountyPhone(617) 726-2000
Source: Dmand AI Affiliation Data
Dr. William L. Hwang is affiliated with 4 sites of care and 2 medical groups
Dr. Hwang's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Physicians Organization (MGPO). Dmand AI also links Dr. Hwang to 2 more group practices and clinics, 1 community health center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William L. Hwang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hwang practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Massachusetts General Hospital | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mass General Brigham and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William L. Hwang is one of 186 radiation oncologists in Massachusetts
Radiation oncology is Dr. Hwang's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Hwang is licensed in Massachusetts.
Specialties and state licenses
- Radiation oncology, MassachusettsPrimary
Radiation oncologists near Dr. Hwang
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William L. Hwang's patients have a median age of 28
Across all payers, Dmand AI patient panel data puts Dr. Hwang's median patient age at 28, with 100% women.
Dr. Hwang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 28
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
How Dr. William L. Hwang takes part in Medicare
Dr. Hwang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Dr. William L. Hwang graduated from Harvard Medical School
Dr. Hwang graduated from Harvard Medical School in 2015.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William L. Hwang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William L. Hwang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. William L. Hwang's NPI number?
Dr. William L. Hwang's NPI number is 1073994489. It was assigned on June 11, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. William L. Hwang?
Dr. William L. Hwang is a radiation oncologist in Boston, Massachusetts. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. William L. Hwang practice?
Dr. Hwang practices at 55 Fruit Street, Boston, MA 02114. Dr. Hwang's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Hwang to 2 group practices and clinics, 1 community health center and 1 medical group.
What is Dr. William L. Hwang's office phone number?
The practice phone on file for Dr. Hwang is (617) 726-2000.
What is Dr. William L. Hwang's medical license number?
Dr. Hwang holds Massachusetts license 274104.
Which hospitals is Dr. William L. Hwang affiliated with?
Dr. Hwang practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. William L. Hwang part of?
Dr. Hwang is linked to Massachusetts General Physicians Organization (MGPO). Dmand AI links Dr. Hwang to 1 more medical group.
Does Dr. William L. Hwang accept Medicare?
Yes. CMS lists Dr. Hwang as accepting Medicare assignment.
Where did Dr. William L. Hwang go to medical school?
Dr. Hwang graduated from Harvard Medical School in 2015.
How long has Dr. William L. Hwang been practicing?
Dr. Hwang graduated from medical school in 2015, 11 years ago.
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