Dr. Emily B Chang , DDS
Dentist • Somerville, MA
474 Broadway, Suite 110
Somerville, MA 02145
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
474 Broadway
Suite 110
Somerville, MA 02145
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in San Francisco, CA. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
What Public CMS Data Show
Dentist: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2025
All general payments: $103.47 across 3 records.
By nature of payment
- Education: $70.00 across 1 record.
- Food and Beverage: $33.47 across 2 records.
Reporting-company totals
- Align Technology, Inc.: $87.63 across 2 records.
- Philips North America LLC: $15.84 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
NPI first issued
2007
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians, CMS release of October 2, 2026; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians, CMS release of October 2, 2026.
Compared with the same specialty in Somerville and Massachusetts
26 active clinicians are listed under Dentist with a practice address in Somerville, MA (2,973 in Massachusetts).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Somerville
0% of these 26 clinicians have the CMS telehealth indicator.
0% of these 26 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $12.11 in 2019 to $103.47 in 2025.
- 2019: $12.11
- 2023: $60.13
- 2024: $349.29
- 2025: $103.47
Sources: CMS Open Payments (2025), CMS Doctors and Clinicians, CMS release of October 2, 2026, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $103.47.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Align Technology, Inc. |
Education
Cash or cash equivalent
|
Invisalign | General | $70.00 |
| Align Technology, Inc. |
Food and Beverage
Cash or cash equivalent
|
Invisalign | General | $17.63 |
| Philips North America LLC |
Food and Beverage
Cash or cash equivalent
|
Power Toothbrush Undivided | General | $15.84 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2021-02-24NUCC Taxonomy Code: 122300000X
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
NUCC Taxonomy Code: 122300000X
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
Secondary Practice Locations
4 Embarcadero Ctr, Embarcadero 4 Dental, Lobby Level
San Francisco, CA 941115900
Phone: 4155769800
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Dentist - General Practice
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 474 BROADWAY, SUITE 110, SOMERVILLE, MA 02145 (Tel: 6176232223)
Registered at 474 BROADWAY, SUITE 110, SOMERVILLE, MA 02145 (Tel: 6176232223)
Additional practice office at 4 Embarcadero Ctr, Embarcadero 4 Dental, Lobby Level, San Francisco, CA 941115900
Recorded as EMILY CHANG, DDS
NPI status registered as active in NPPES database
Registered at 4 EMBARCADERO CTR, EMBARCADERO 4 DENTAL, LOBBY LEVEL, SAN FRANCISCO, CA 941115900 (Tel: 4155769800)
Registered at 4 EMBARCADERO CTR, EMBARCADERO 4 DENTAL, LOBBY LEVEL, SAN FRANCISCO, CA 941115900
Recorded as EMILY CHANG
Dentist (license number reported to NPPES: CA 46765)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Dentists in Somerville
- Zhala Isayeva
- Dr. Yousef Sidki, DMD
- Dr. Katie-Rose Wagner, DDS
- Dr. Karen Bright, DMD
- Dr. Judley Alphonse, DMD
- Dr. Anthony Parrella, DMD
Mailing Address
474 Broadway, Suite 110
Somerville, MA 02145
Phone: 6176232223