What is Jay Himmelstein's NPI number?

Jay Himmelstein's National Provider Identifier (NPI) is 1629279922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Jay Himmelstein's specialty?

Jay Himmelstein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Jay Himmelstein located?

Jay Himmelstein's practice location on file with NPPES is 333 South St, Shrewsbury, MA 01545-7807.

What is Jay Himmelstein's phone number?

The practice phone number listed in the NPPES registry for Jay Himmelstein is (508) 856-5763.

Is Jay Himmelstein's NPI active?

Yes — Jay Himmelstein's NPI (1629279922) is active in the NPPES registry as of the last update on 2009-09-04.

IndividualActive

Jay Himmelstein, M.D.

NPI 1629279922 · Internal Medicine Physician · Shrewsbury, MA

Jay Himmelstein, M.D. is a Internal Medicine Physician provider in Shrewsbury, MA (NPI 1629279922).

Provider details

NPI number: 1629279922
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: 72323 (MA)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 72323 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(89/100 index)

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

Registry tenure38% of score
19 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

333 South St

Shrewsbury, MA 01545-7807

Phone: (508) 856-5763

Street-level locationGet directions

More MA providers

Mailing address

Univ of Mass Med. School

Shrewsbury, MA 01545

Enumerated: 2007-05-31
Last updated: 2009-09-04

Frequently asked questions

What is Jay Himmelstein's NPI number?: Jay Himmelstein's National Provider Identifier (NPI) is 1629279922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Jay Himmelstein's specialty?: Jay Himmelstein is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Jay Himmelstein located?: Jay Himmelstein's practice location on file with NPPES is 333 South St, Shrewsbury, MA 01545-7807.
What is Jay Himmelstein's phone number?: The practice phone number listed in the NPPES registry for Jay Himmelstein is (508) 856-5763.
Is Jay Himmelstein's NPI active?: Yes — Jay Himmelstein's NPI (1629279922) is active in the NPPES registry as of the last update on 2009-09-04.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.