MARY BETH SON (M.D.) – Pediatric Rheumatology Physician, NPI 1972665909

MARY BETH SON (M.D.) is a healthcare provider. based in Boston, Massachusetts. specializing in PEDIATRIC MEDICINE, RHEUMATOLOGY. They hold the professional credentials M.D.. They hold a License No. 219881 (MA). The NPI Number for MARY BETH SON (M.D.) is 1972665909

Main info

Female
25 Years Of Experience
Accepts Medicare Assignment
Name
MARY BETH SON (M.D.)
NPI
1972665909
Phone
Not provided
Address
300 LONGWOOD AVE
Enumeration Date
15 December 2006
Last Update Date
4 March 2015

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
6173556000
Graduation Year
2001 (25 years ago)
PAC ID
2860483377
Group Practice PAC ID
3476541830
Professional Enrollment ID
I20040523000007
Address ID
MA021155724BO300XXAVEX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

1,245 PEDIATRIC MEDICINE in MA

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Provider Addresses for MARY BETH SON (M.D.)

  • Children's Hospital Library, 300, Longwood Avenue, Roxbury, Boston, Suffolk County, Massachusetts, 02120, United States

    CHILDRENS HOSPITAL BOSTON

    BOSTON, MA 021155724

    Phone:

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-05-23

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20040523000007IPediatric MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 02115)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3476541830View full group profile
NameSpecialtyState
-MA
Nurse PractitionerMA
Pediatric MedicineMA
Hematology/Oncology, Pediatric MedicineMA
-MA
-MA
Pediatric Medicine, Critical Care (Intensivists)MA
Allergy/Immunology, Pediatric MedicineMA
Hematology/Oncology, Pediatric MedicineMA
-MA

Reviews

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Frequently asked questions

What is MARY BETH SON (M.D.)'s NPI number?
MARY BETH SON (M.D.)'s NPI is 1972665909 — the number used across U.S. healthcare to identify this provider.
Is there an active status for MARY BETH SON (M.D.)?
For scheduling context, MARY BETH SON (M.D.) is shown as active in the registry.
What expertise is attributed to MARY BETH SON (M.D.)?
MARY BETH SON (M.D.)'s specialty line reads Pediatric Rheumatology Physician. Clinical services aligned with this taxonomy classification.
Is MARY BETH SON (M.D.) associated with Boston?
Public fields place MARY BETH SON (M.D.) around Boston, Massachusetts. Always confirm the exact site before visiting.
Does MARY BETH SON (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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