Evan E. Tong, OD
- Medicare patients, 2024
- 232
- Part D claims, 2024
- 65
- Industry payments
- $85
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 730 Main St, Millis, MA 02054
- Practice phone
- Call (508) 881-3029
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Charles River Medical Associates
Millis, Massachusetts
Find Evan Tong'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.
Evan E. Tong is an optometrist in Millis, Massachusetts
Evan Tong practices at Charles River Medical Associates in Millis, Massachusetts.
Evan Tong's NPI, 1477721967, was assigned on February 18, 2008. Evan Tong graduated from New England College of Optometry in 2007. Evan Tong holds Massachusetts license 4727.
- NPI
- 1477721967NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648454892
- NPI enumeration date
- February 18, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (508) 881-3029
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Evan E. Tong practices at Charles River Medical Associates in Millis, Massachusetts
Evan Tong's primary practice is Charles River Medical Associates, at 730 Main St, Millis, MA 02054 in Norfolk County. The practice phone is (508) 881-3029.
- Charles River Medical Associates730 Main St, Millis, MA 02054 · Norfolk CountyPhone(508) 881-3029
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Evan E. Tong is affiliated with 2 sites of care and 1 medical group
Evan Tong's primary practice is Charles River Medical Associates in Millis, Massachusetts. Dmand AI also links Evan Tong to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Evan E. Tong's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Evan Tong practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Charles River Medical Associates | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Evan E. Tong is one of 1,098 optometrists in Massachusetts
Optometrist is Evan Tong's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Evan Tong is licensed in Massachusetts.
Specialties and state licenses
- Optometrist, MassachusettsPrimary
Optometrists near Evan Tong
Counts of optometrists 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
Evan E. Tong treated 232 Medicare patients in 2024, average age 69
CMS counts 232 Medicare patients who saw Evan Tong in 2024. The largest group is 65 to 74, with 106 patients. 75% of them have high cholesterol, and 61% have high blood pressure. 36% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Evan Tong's median patient age at 67, with 53% women.
Evan Tong's Medicare patients by age, 2024
Evan Tong's Medicare patients by sex, 2024
- Women14261%
- Men9039%
Chronic conditions among Evan Tong's Medicare patients, 2024
- High cholesterol75%
- High blood pressure61%
- Arthritis43%
- Anxiety33%
- Mood disorders29%
- Diabetes26%
- Depression24%
- Ischemic heart disease19%
Share of Medicare patients with each condition. A patient can have several.
Evan Tong's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Evan E. Tong wrote 65 Medicare Part D claims in 2024
In 2024, Evan Tong wrote 65 Medicare Part D claims for 33 patients. 63% of them were for generic drugs.
Evan Tong's Part D claims by kind of drug, 2024
- Generic41 claims63%
- Brand-name24 claims37%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Evan E. Tong ranks in the 47th percentile for cataract surgery in Medicare
Evan Tong accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 23 procedures of cataract surgery by Evan Tong, more than 47% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Evan Tong ranks in Medicare procedure volume
- Cataract surgery
- 47th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Evan E. Tong received $85 in industry payments in 2025
CMS Open Payments shows 4 general payments to Evan Tong from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $85.
Companies that paid Evan Tong the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Evan E. Tong graduated from New England College of Optometry
Evan Tong graduated from New England College of Optometry in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Evan E. Tong'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Evan E. Tong
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Evan E. Tong's NPI number?
Evan E. Tong's NPI number is 1477721967. It was assigned on February 18, 2008, and it is active in the NPI Registry.
What does Evan E. Tong specialize in?
Evan E. Tong is an optometrist in Millis, Massachusetts. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Evan E. Tong practice?
Evan Tong practices at 730 Main St, Millis, MA 02054. Evan Tong's primary practice is Charles River Medical Associates in Millis, Massachusetts. Dmand AI also links Evan Tong to 1 group practice or clinic and 1 medical group.
What is Evan E. Tong's office phone number?
The practice phone on file for Evan Tong is (508) 881-3029.
What is Evan E. Tong's medical license number?
Evan Tong holds Massachusetts license 4727.
Does Evan E. Tong accept Medicare?
Yes. CMS lists Evan Tong as accepting Medicare assignment.
How many Medicare patients does Evan E. Tong see?
CMS counts 232 Medicare patients who saw Evan Tong in 2024, with an average age of 69.
Where did Evan E. Tong go to medical school?
Evan Tong graduated from New England College of Optometry in 2007.
Has Evan E. Tong received payments from drug or device companies?
CMS Open Payments shows $85 in general payments to Evan Tong from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has Evan E. Tong been practicing?
Evan Tong graduated from medical school in 2007, 19 years ago.
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