Dr. William Tin-Shing Choi, MD, PhD
- Part D claims, 2019
- 22
- Hospital affiliations
- 1
- Industry payments
- $284
- Medical group
- 1
- State license
- 1
- Practice address
- 300 Longwood Avenue, Boston, MA 02115
- Practice phone
- Call (617) 735-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Choi'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 Tin-Shing Choi is a medical biochemical genetics in Boston, Massachusetts
Dr. Choi practices at Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital.
Dr. Choi's NPI, 1861923658, was assigned on March 23, 2017. Dr. Choi holds Massachusetts license 286339.
- NPI
- 1861923658NPI Registry (opens in a new tab)
- NPI enumeration date
- March 23, 2017
- NPI status
- Active
- Practice phone
- (617) 735-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William Tin-Shing Choi practices at Boston Children's Hospital in Boston, Massachusetts
Dr. Choi's primary practice is Boston Children's Hospital, at 300 Longwood Avenue, Boston, MA 02115 in Suffolk County. The practice phone is (617) 735-6000.
- Boston Children's Hospital300 Longwood Avenue, Boston, MA 02115 · Suffolk CountyPhone(617) 735-6000
Source: Dmand AI Affiliation Data
Dr. William Tin-Shing Choi is affiliated with 2 sites of care and 1 medical group
Dr. Choi's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. The medical group on file is Boston Children's Hospital. Dmand AI also links Dr. Choi to 1 more dialysis center, 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 Tin-Shing Choi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Choi practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Boston Children's Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William Tin-Shing Choi's specialty is medical biochemical genetics
Medical biochemical genetics is Dr. Choi's primary specialty in the NPI Registry, under taxonomy code 207SG0207X. Dr. Choi is licensed in Massachusetts.
Specialties and state licenses
- Medical biochemical genetics, MassachusettsPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Tin-Shing Choi's patients have a median age of 9
Across all payers, Dmand AI patient panel data puts Dr. Choi's median patient age at 9, with 54% women.
Dr. Choi's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 9
Patient panel by sex, all payers
- Women54%
- Men45%
Source: Dmand AI Patient Panel Data
Dr. William Tin-Shing Choi wrote 22 Medicare Part D claims in 2019
In 2019, Dr. Choi wrote 22 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $186 in total drug cost.
Dr. Choi's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William Tin-Shing Choi received $284 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Choi from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $218.
General payments to Dr. Choi by program year, 2017 to 2025
Companies that paid Dr. Choi the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Tin-Shing Choi'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Tin-Shing Choi
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 Tin-Shing Choi's NPI number?
Dr. William Tin-Shing Choi's NPI number is 1861923658. It was assigned on March 23, 2017, and it is active in the NPI Registry.
What kind of doctor is Dr. William Tin-Shing Choi?
Dr. William Tin-Shing Choi is a medical biochemical genetics in Boston, Massachusetts. The primary specialty in the NPI Registry is Medical Biochemical Genetics (taxonomy code 207SG0207X).
Where does Dr. William Tin-Shing Choi practice?
Dr. Choi practices at 300 Longwood Avenue, Boston, MA 02115. Dr. Choi's primary practice is Boston Children's Hospital in Boston, Massachusetts, part of The Children's Hospital. Dmand AI also links Dr. Choi to 1 dialysis center.
What is Dr. William Tin-Shing Choi's office phone number?
The practice phone on file for Dr. Choi is (617) 735-6000.
What is Dr. William Tin-Shing Choi's medical license number?
Dr. Choi holds Massachusetts license 286339.
Which hospitals is Dr. William Tin-Shing Choi affiliated with?
Dr. Choi practices at Boston Children's Hospital in Boston, Massachusetts.
What medical group is Dr. William Tin-Shing Choi part of?
Dr. Choi is linked to Boston Children's Hospital.
What drugs does Dr. William Tin-Shing Choi prescribe most?
In 2019 Medicare Part D data, Dr. Choi's most prescribed drugs by claims were Clonidine HCl and Venlafaxine HCl.
Has Dr. William Tin-Shing Choi received payments from drug or device companies?
CMS Open Payments shows $284 in general payments to Dr. Choi from 5 companies from 2017 to 2025. The largest total came from Genentech, Inc.
How long has Dr. William Tin-Shing Choi been practicing?
Dr. Choi's NPI was assigned in 2017.
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