Dr. Charles S. Dai, MD
- Part D claims, 2024
- 21
- Hospital affiliations
- 3
- Industry payments
- $58
- Medical groups
- 3
- State license
- 1
- Practice address
- 2014 Washington Street, Newton, MA 02462
- Practice phone
- Call (617) 243-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dai'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. Charles S. Dai is a medical oncologist in Newton Lower Falls, Massachusetts
Dr. Dai practices at Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham.
Dr. Dai's NPI, 1255821344, was assigned on May 14, 2018. Dr. Dai holds Massachusetts license 285725.
- NPI
- 1255821344NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315298023
- NPI enumeration date
- May 14, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (617) 243-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles S. Dai practices at Newton-Wellesley Hospital in Newton, Massachusetts
Dr. Dai's primary practice is Newton-Wellesley Hospital, at 2014 Washington Street, Newton, MA 02462 in Middlesex County. The practice phone is (617) 243-6000.
- Newton-Wellesley Hospital2014 Washington Street, Newton, MA 02462 · Middlesex CountyPhone(617) 243-6000
Source: Dmand AI Affiliation Data
Dr. Charles S. Dai is affiliated with 4 sites of care and 3 medical groups
Dr. Dai's primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham. Dr. Dai is also affiliated with Massachusetts General Hospital. The medical group on file is Massachusetts General Hospital. Dmand AI also links Dr. Dai to 1 more hospital, 2 medical groups and 1 hospital outpatient department, 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. Charles S. Dai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dai practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Newton-Wellesley Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles S. Dai is one of 290 medical oncologists in Massachusetts
Medical oncology is Dr. Dai's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Dai is licensed in Massachusetts.
Specialties and state licenses
- Medical oncology, MassachusettsPrimary
Medical oncologists near Dr. Dai
Counts of medical 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. Charles S. Dai's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Dai's median patient age at 73, with 68% women.
Dr. Dai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women68%
- Men32%
Source: Dmand AI Patient Panel Data
Dr. Charles S. Dai wrote 21 Medicare Part D claims in 2024
In 2024, Dr. Dai wrote 21 Medicare Part D claims. 100% of them were for generic drugs.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Charles S. Dai offers telehealth to Medicare patients
Dr. Dai accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dai as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Charles S. Dai received $58 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Dai from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Caris MPI, Inc. paid the most, $58.
Companies that paid Dr. Dai the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Charles S. Dai'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 (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Charles S. Dai
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. Charles S. Dai's NPI number?
Dr. Charles S. Dai's NPI number is 1255821344. It was assigned on May 14, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles S. Dai?
Dr. Charles S. Dai is a medical oncologist in Newton Lower Falls, Massachusetts. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. Charles S. Dai practice?
Dr. Dai practices at 2014 Washington Street, Newton, MA 02462. Dr. Dai's primary practice is Newton-Wellesley Hospital in Newton, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Dai to 1 hospital, 2 medical groups and 1 hospital outpatient department.
What is Dr. Charles S. Dai's office phone number?
The practice phone on file for Dr. Dai is (617) 243-6000.
What is Dr. Charles S. Dai's medical license number?
Dr. Dai holds Massachusetts license 285725.
Which hospitals is Dr. Charles S. Dai affiliated with?
Dr. Dai practices at Newton-Wellesley Hospital in Newton, Massachusetts. Dr. Dai is also affiliated with Massachusetts General Hospital. Dmand AI links Dr. Dai to 1 more hospital.
What medical group is Dr. Charles S. Dai part of?
Dr. Dai is linked to Massachusetts General Hospital. Dmand AI links Dr. Dai to 2 more medical groups.
Does Dr. Charles S. Dai accept Medicare?
Yes. CMS lists Dr. Dai as accepting Medicare assignment.
Does Dr. Charles S. Dai offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Dai as offering telehealth services.
Has Dr. Charles S. Dai received payments from drug or device companies?
CMS Open Payments shows $58 in general payments to Dr. Dai from 1 company from 2025 to 2025. The largest total came from Caris MPI, Inc.
How long has Dr. Charles S. Dai been practicing?
Dr. Dai graduated from medical school in 2018, 8 years ago.
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