What is Thomas Leith's NPI number?

Thomas Leith's National Provider Identifier (NPI) is 1760185821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Thomas Leith's specialty?

Thomas Leith is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Thomas Leith located?

Thomas Leith's practice location on file with NPPES is 55 Lake Ave N, Worcester, MA 01655-0002.

What is Thomas Leith's phone number?

The practice phone number listed in the NPPES registry for Thomas Leith is (508) 334-1000.

Is Thomas Leith's NPI active?

Yes — Thomas Leith's NPI (1760185821) is active in the NPPES registry as of the last update on 2026-04-04.

IndividualActive

Thomas Leith, MD

NPI 1760185821 · Emergency Medicine Physician · Worcester, MA

Thomas Leith, MD is a Emergency Medicine Physician provider in Worcester, MA (NPI 1760185821).

Provider details

NPI number: 1760185821
Entity type: Individual
Primary specialty: Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 1025661 (MA)

Specialties & taxonomies

Emergency Medicine PhysicianPrimary207P00000XLicense 1025661 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(59/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
3 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

55 Lake Ave N

Worcester, MA 01655-0002

Phone: (508) 334-1000

Street-level locationGet directions

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Mailing address