Dr. Sonia Diaz, MD
- Hospital affiliations
- 1
- Industry payments
- $67
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2005
- 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. Diaz'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. Sonia Diaz is a pediatrician in Boston, Massachusetts
Dr. Diaz practices at Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham.
Dr. Diaz's NPI, 1396720264, was assigned on December 13, 2005. Dr. Diaz holds Massachusetts license 208297.
- NPI
- 1396720264NPI Registry (opens in a new tab)
- NPI enumeration date
- December 13, 2005
- NPI status
- Active
- Practice phone
- (617) 726-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Sonia Diaz practices at Massachusetts General Hospital in Boston, Massachusetts
Dr. Diaz'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. Sonia Diaz is affiliated with 3 sites of care and 2 medical groups
Dr. Diaz's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. The medical group on file is Massachusetts General Hospital. Dmand AI also links Dr. Diaz to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Diaz's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sonia Diaz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Diaz practices, 3 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 |
| +2 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. Sonia Diaz is one of 2,101 pediatricians in Massachusetts
Pediatrics is Dr. Diaz's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Diaz is licensed in Massachusetts.
Specialties and state licenses
- Pediatrics, MassachusettsPrimary
Pediatricians near Dr. Diaz
Counts of pediatricians 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. Sonia Diaz's patients have a median age of 5
Across all payers, Dmand AI patient panel data puts Dr. Diaz's median patient age at 5, with 52% women.
Dr. Diaz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 5
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Sonia Diaz received $67 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Diaz from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $67.
Companies that paid Dr. Diaz the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sonia Diaz'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 |
| 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. Sonia Diaz
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. Sonia Diaz's NPI number?
Dr. Sonia Diaz's NPI number is 1396720264. It was assigned on December 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sonia Diaz?
Dr. Sonia Diaz is a pediatrician in Boston, Massachusetts. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Sonia Diaz practice?
Dr. Diaz practices at 55 Fruit Street, Boston, MA 02114. Dr. Diaz's primary practice is Massachusetts General Hospital in Boston, Massachusetts, part of Mass General Brigham. Dmand AI also links Dr. Diaz to 1 community health center, 1 group practice or clinic and 1 medical group.
What is Dr. Sonia Diaz's office phone number?
The practice phone on file for Dr. Diaz is (617) 726-2000.
What is Dr. Sonia Diaz's medical license number?
Dr. Diaz holds Massachusetts license 208297.
Which hospitals is Dr. Sonia Diaz affiliated with?
Dr. Diaz practices at Massachusetts General Hospital in Boston, Massachusetts.
What medical group is Dr. Sonia Diaz part of?
Dr. Diaz is linked to Massachusetts General Hospital. Dmand AI links Dr. Diaz to 1 more medical group.
Has Dr. Sonia Diaz received payments from drug or device companies?
CMS Open Payments shows $67 in general payments to Dr. Diaz from 1 company from 2018 to 2018. The largest total came from Eli Lilly and Company.
How long has Dr. Sonia Diaz been practicing?
Dr. Diaz's NPI was assigned in 2005.
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