JOHN A TENBROOK, JR. M.D.
NPI 1902846439
Internal Medicine in Braintree, MA
About John A Tenbrook, Jr. M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN A TENBROOK, JR. M.D. (NPI 1902846439) is an individual internal medicine provider in Braintree, Massachusetts, licensed in Massachusetts (209991) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with South Shore Hospital, and is a graduate of Geisel School Of Medicine At Dartmouth (1996).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
John A Tenbrook, Jr. M.d. 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.
Medicare Billing Reassignment
Medicare enrollment records show John Tenbrook, Jr. reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Weymouth, MA 02190
- Reassigned Medicare billing, Massachusetts enrollment
- 671 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
South Shore Hospital
Acute Care Hospitals · South Weymouth, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02184 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 John Tenbrook, Jr.'s NPI number?
The NPI number for John Tenbrook, Jr. is 1902846439. It was assigned to this individual provider in the NPPES registry on June 6, 2006.
Where is John Tenbrook, Jr. located?
John Tenbrook, Jr. practices at 250 Pond St, Braintree, MA 02184. The listed phone number is (781) 848-1300.
What is John Tenbrook, Jr.'s specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Tenbrook, Jr. enrolled in Medicare?
Yes. John Tenbrook, Jr. 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.
Which organization bills Medicare for John Tenbrook, Jr.'s services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Tenbrook, Jr. reassigns Medicare benefits to Coastal Medical Associates (Weymouth, MA). The 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 John Tenbrook, Jr.'s services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Tenbrook, Jr. accept?
Health plans from Taro Health list John Tenbrook, Jr. 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 John Tenbrook, Jr. affiliated with any hospitals?
According to CMS data, John Tenbrook, Jr. is affiliated with South Shore Hospital.
When was this NPI record last updated?
The NPPES record for John Tenbrook, Jr. was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# John A Tenbrook, Jr., M.D. · NPI 1902846439
Internal Medicine physician in Braintree, Massachusetts. Individual provider, active in the CMS NPPES registry since June 6, 2006.
## Identity
- **NPI:** 1902846439 (Entity type: Individual)
- **Enumerated:** June 6, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 209991 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 250 POND ST, Braintree, MA 02184-5351
- **Phone:** (781) 848-1300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Coastal Medical Associates (NPI 1932175684, Weymouth, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Geisel School Of Medicine At Dartmouth, class of 1996
## Record status
- **NPPES last updated:** July 8, 2007
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Source: [NPI Profile](https://npiprofile.com/npi/1902846439) · Data from the CMS NPPES public registry.