Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ROBERT S NIERMAN M.D.
NPI 1801834023
Surgery in Watertown, MA

Q: What is Robert Nierman's NPI number?

The NPI number for Robert Nierman is 1801834023. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Q: What is Robert Nierman's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Q: When was this NPI record last updated?

The NPPES record for Robert Nierman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.

Active since June 02, 2006

705 MT. AUBORN STREET, TUFTS HEALTH PLAN, WATERTOWN, MA 02472(617) 972-9025 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Robert S Nierman M.d. NPPES

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

ROBERT S NIERMAN M.D. (NPI 1801834023) is an individual surgery provider in Watertown, Massachusetts, licensed in Massachusetts (38289) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1801834023

Entity TypeIndividualMale

Primary Taxonomy208600000X

Provider Legal NameROBERT S NIERMANCredential: M.D.

Location Address705 MT. AUBORN STREET, TUFTS HEALTH PLANWatertown, MA 02472

Mailing Address43 Valleyfield StLexington, MA 02421-7949 · (617) 972-9025

Phone(617) 972-9025

Sole ProprietorNo

Enumeration DateJune 2, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1801834023 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians

Taxonomy Code208600000X

License✔ Licensed in MA · 38289

Definition

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

705 MT. AUBORN STREET, Watertown, MA 02472

Open in Google Maps ↗

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 Robert Nierman's NPI number?

The NPI number for Robert Nierman is 1801834023. It was assigned to this individual provider in the NPPES registry on June 2, 2006.

Where is Robert Nierman located?

Robert Nierman practices at 705 Mt. Auborn Street Tufts Health Plan, Watertown, MA 02472. The listed phone number is (617) 972-9025.

What is Robert Nierman's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

When was this NPI record last updated?

The NPPES record for Robert Nierman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.