DR. JOSEPH JAY BAKER MD, MPH
NPI 1144338138
Family Medicine in Boston, MA

Active since August 29, 2006PECOS EnrolledAccepts Medicare Assignment
1340 BOYLSTON ST, BOSTON, MA 02215(617) 267-0900(617) 247-3460 Get Directions Write a Review

NPPES record last updated: April 25, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Joseph Jay Baker Md, Mph NPPES

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

DR. JOSEPH JAY BAKER MD, MPH (NPI 1144338138) is an individual family medicine provider in Boston, Massachusetts, licensed in Massachusetts (245637) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Medical Center, and is a graduate of Georgetown University School Of Medicine (2000).

NPPES Registry Identity

NPI1144338138
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. JOSEPH JAY BAKERCredential: MD, MPH
Location Address1340 BOYLSTON STBoston, MA 02215-4302
Mailing Address1340 Boylston StBoston, MA 02215-4302 · (617) 267-0900 · Fax (617) 247-3460
Fax(617) 247-3460
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 2000
Enumeration DateAugust 29, 2006
Last NPPES UpdateApril 25, 2021
NPPES CertifiedApril 25, 2021
NPI 1144338138 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in MA · 245637
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1340 BOYLSTON ST, Boston, MA 02215

Other Identifiers 2

Other26428DC · Chartered Health Plan
Other8004-0037DC · Carefirst Bcbs

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Joseph Jay Baker Md, Mph is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5698875862
PECOS Enrollment IDI20110120000833
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220086
Location330 Brookline AvenueBoston, MA 02215 · Suffolk County
Emergency services Birthing friendly

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220100
Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02215 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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260
DME-Hospital Beds · category DB000N
1 supplier11 claims11 services$24.52 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Clinic/Center (Federally Qualified Health Center (FQHC))
1340 BOYLSTON ST
BOSTON, MA 02215
Family Medicine
1340 BOYLSTON ST
BOSTON, MA 02215
Dentist
1340 BOYLSTON ST
BOSTON, MA 02215
Dentist
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215
Nurse Practitioner (Women's Health)
1340 BOYLSTON ST
BOSTON, MA 02215
Social Worker (Clinical)
1340 BOYLSTON ST
BOSTON, MA 02215

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 Joseph Baker's NPI number?

The NPI number for Joseph Baker is 1144338138. It was assigned to this individual provider in the NPPES registry on August 29, 2006.

Where is Joseph Baker located?

Joseph Baker practices at 1340 Boylston St, Boston, MA 02215. The listed phone number is (617) 267-0900.

What is Joseph Baker's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Joseph Baker enrolled in Medicare?

Yes. Joseph Baker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Joseph Baker accept?

Health plans from Anthem Blue Cross and Blue Shield list Joseph Baker 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.

Is Joseph Baker affiliated with any hospitals?

According to CMS data, Joseph Baker is affiliated with Beth Israel Deaconess Medical Center and South Shore Hospital.

When was this NPI record last updated?

The NPPES record for Joseph Baker was last updated on April 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.