DR. SONIA DIAZ MD
NPI 1396720264
Pediatrics in Jamaica Plain, MA

Active since December 13, 2005PECOS Enrolled
3297 WASHINGTON ST, JAMAICA PLAIN, MA 02130(617) 983-6039(617) 524-1716 Get Directions Write a Review

NPPES record last updated: January 30, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Sonia Diaz Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SONIA DIAZ MD (NPI 1396720264) is an individual pediatrics provider in Jamaica Plain, Massachusetts, licensed in Massachusetts (208297) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1396720264
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. SONIA DIAZCredential: MD
Location Address3297 WASHINGTON STJamaica Plain, MA 02130-2655
Mailing Address56 Laurel RdMilton, MA 02186-1539 · (617) 696-2191
Fax(617) 524-1716
Sole ProprietorNo
Enumeration DateDecember 13, 2005
Last NPPES UpdateJanuary 30, 2013
✔ NPI 1396720264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in MA · 208297
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
3297 WASHINGTON ST, Jamaica Plain, MA 02130

Other Identifiers 2

Medicare ID-Type UnspecifiedA33646MA
Medicare UPINH56462MA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sonia Diaz Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Sonia Diaz reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

General Acute Care Hospital
55 FRUIT ST, BULFINCH 360
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,234 clinicians in this Medicare group
Dermatology
55 FRUIT ST, BUL 2
Boston, MA 02114
  • Reassigned Medicare billing, Massachusetts enrollment
  • 6,360 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02130 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$97.64 typical visit price
range $63.72 – $189.86
Typical copayment $24.41 (range $15.93 – $47.46)
Most-billed visit code 99203
Established Patient
$111.18 typical visit price
range $21.07 – $155.29
Typical copayment $27.79 (range $5.26 – $38.82)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Dental Hygienist
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Community/Behavioral Health
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Nurse Practitioner (Family)
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Student in an Organized Health Care Education/Training Program
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Dietitian, Registered
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Social Worker
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130
Nurse Practitioner (Psychiatric/Mental Health)
3297 WASHINGTON ST
JAMAICA PLAIN, MA 02130

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sonia Diaz's NPI number?

The NPI number for Sonia Diaz is 1396720264. It was assigned to this individual provider in the NPPES registry on December 13, 2005.

Where is Sonia Diaz located?

Sonia Diaz practices at 3297 Washington St, Jamaica Plain, MA 02130. The listed phone number is (617) 983-6039.

What is Sonia Diaz's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Sonia Diaz enrolled in Medicare?

Yes. Sonia Diaz is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sonia Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sonia Diaz reassigns Medicare benefits to 2 organizations: The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sonia Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sonia Diaz accept?

Health plans from Anthem Blue Cross and Blue Shield and Taro Health list Sonia Diaz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Sonia Diaz was last updated on January 30, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.