JASON SHAFFER (MD) – Family Medicine Physician, NPI 1043898273

JASON SHAFFER (MD) is a healthcare provider. based in Somerville, Massachusetts. specializing in FAMILY PRACTICE. They hold the professional credentials MD. They hold a License No. 1043898273 (RI). The NPI Number for JASON SHAFFER (MD) is 1043898273

Main info

Male
5 Years Of Experience
Accepts Medicare Assignment
Name
JASON SHAFFER (MD)
NPI
1043898273
Phone
(401) 737-7010
Address
300 BROADWAY
Enumeration Date
30 March 2021
Last Update Date
4 November 2024

Doctor Profile

Medical School Name
UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Secondary Phone
6172847000
Graduation Year
2021 (5 years ago)
PAC ID
9830599547
Group Practice PAC ID
8921910894
Professional Enrollment ID
I20250204002383
Address ID
MA021452935SO300XXBROA200

Contacts

Secure Messaging
jlshaffer@direct.carene.org
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness85
Years active:5State licenses:3Other namesUpdated within 12 months

1,900 FAMILY PRACTICE in MA

Provider Addresses for JASON SHAFFER (MD)

  • 300 BROADWAY

    SOMERVILLE, MA 021452935

    Phone: (401) 737-7010

    Type: Location

  • 455 TOLL GATE RD

    WARWICK, RI 028862759

    Phone: (401) 737-7010

    Type: Location

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: 2025-02-04

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
I20250204002383IFamily PracticeMATBD

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 02145)

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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: 8921910894View full group profile

Reviews

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Frequently asked questions

Does JASON SHAFFER (MD) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — JASON SHAFFER (MD) uses 1043898273.
Is JASON SHAFFER (MD) listed as active for patients and plans?
The listing shows JASON SHAFFER (MD) as active in the NPI system.
What is JASON SHAFFER (MD)'s primary classification?
Family Medicine Physician is the headline specialty for JASON SHAFFER (MD) here. Clinical services aligned with this taxonomy classification.
Where is JASON SHAFFER (MD) based?
JASON SHAFFER (MD) is tied to Somerville, Massachusetts in the data we show; additional addresses may exist on the full record.
Is specialty guaranteed by NPI alone?
Taxonomy selections describe intent; scope of practice still follows state law.

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