John T Larossa, M.D. is a healthcare provider in Newton, MA specialising in endocrinology. John trained at Tufts University School of Medicine, graduating in 1973. John is also listed as specialising in specialist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Larossa is an endocrinology in Newton, MA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ENDOCRINOLOGY”.
NPI registry
Dr. Larossa is listed at 2000 WASHINGTON ST SUITE 100, Newton, MA 02462. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (617) 244-1311. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Larossa's National Provider Identifier is 1346217155. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Larossa attended Tufts University School of Medicine, graduating in 1973. This comes from the CMS National Downloadable File.
CMS public data
Dr. Larossa has 53 years experience. Calculated from a graduation year of 1973, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Larossa performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Larossa. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
2000 WASHINGTON ST SUITE 100
Newton, MA 02462
1,386 services · 765 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
645 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
648 |
| Telephone medical discussion with physician, 21-30 minutes | Office visit | 99443 |
52 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
41 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Clinically related specialties at the same address — the people this provider most likely works alongside.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in MA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.