John A. Tenbrook, Jr., M.D.
Internal Medicine Physician · Braintree, MA
John A. Tenbrook, Jr., M.D. is an internal medicine physician with a practice address in Braintree, Massachusetts, and NPI 1902846439, issued on Jun 6, 2006. Check the license (Massachusetts 209991, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- John A. Tenbrook, Jr.
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 209991 MA
Self-reported in NPPES; status is on the state search - Practice location
- 250 Pond St, Braintree, MA 02184
- Phone
- (781) 848-1300
- Enumerated
- Jun 6, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080701000076); accepts Medicare assignment
- Medical or professional school
- Geisel School Of Medicine At Dartmouth, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 250 Pond St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Armenia, LICSWSocial Worker1437631033
- Arlene Bello, OTROccupational Therapist1083831390
- Sophie Billings, OTR/LOccupational Therapist1417377268
- Alexander Burnham, MS, CCC-SLPSpeech-Language Pathologist1134247851
- Julia Carciero, LICSWClinical Social Worker1184105199
- Sara Cohen, MDPhysical Medicine & Rehabilitation Physician1366611188
Verify John A. Tenbrook, Jr. in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 209991Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average internal medicine physician in 2024
320 Medicare Part D claims for 154 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Prednisone22 claims
- Furosemide14 claims
- Azithromycin13 claims
- Oxycodone Hcl13 claims
- Cefpodoxime Proxetil12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 82.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Coastal Medical AssociatesWeymouth, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Tenbrook, Jr. among 6,825 internal medicine physician records in Massachusetts
John A. Tenbrook, Jr., M.D. is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1996 · median 2004 among the 4,103 with a school on file
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Braintree
They are 32 of the 991 NPPES records with a practice address in Braintree, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Braintree → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Renee Aversano, MDBraintree, MA 021841962402255
- Richard Black, MDBraintree, MA 021841669473955
- Arthur Bregoli, M.D.Braintree, MA 021841801863196
- Mohamed Elgeziry, MDBraintree, MA 021841477512929
- George Holmes, M.D.Braintree, MA 021841518935642
- Hikaru Isihara, M.D., PH.D.Braintree, MA 021841598750598
- Sara Kelly, M.D.Braintree, MA 021841164491957
- Louis Maggio, M.DBraintree, MA 021841518929637
Common questions
What is John A. Tenbrook, Jr., M.D.'s NPI number?
John A. Tenbrook, Jr., M.D.'s National Provider Identifier (NPI) is 1902846439, issued on Jun 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John A. Tenbrook, Jr., M.D. located?
The NPPES record lists a practice address at 250 Pond St, Braintree, MA, 02184. Phone: (781) 848-1300. Providers update this record themselves, so call before visiting.
How can I verify John A. Tenbrook, Jr., M.D.'s license?
NPPES lists Massachusetts license number 209991, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John A. Tenbrook, Jr., M.D. prescribe under Medicare Part D?
In 2024, John A. Tenbrook, Jr., M.D. had 320 Medicare Part D claims for 154 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is John A. Tenbrook, Jr., M.D.'s MIPS final score?
The 2023 MIPS final score is 82.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.