What is Neil Rens's NPI number?

Neil Rens's National Provider Identifier (NPI) is 1821748690, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Neil Rens's specialty?

Neil Rens is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).

Where is Neil Rens located?

Neil Rens's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.

What is Neil Rens's phone number?

The practice phone number listed in the NPPES registry for Neil Rens is (617) 726-2000.

Is Neil Rens's NPI active?

Yes — Neil Rens's NPI (1821748690) is active in the NPPES registry as of the last update on 2026-03-31.

IndividualActive

Neil Rens

NPI 1821748690 · Anesthesiology Physician · Boston, MA

Neil Rens is a Anesthesiology Physician provider in Boston, MA (NPI 1821748690).

Provider details

NPI number: 1821748690
Entity type: Individual
Primary specialty: Anesthesiology PhysicianAllopathic & Osteopathic Physicians
Sex: Male
Sole proprietor: No
License: 1024161 (MA)

Specialties & taxonomies

Anesthesiology PhysicianPrimary207L00000XLicense 1024161 (MA)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(60/100 index)

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

Registry tenure38% of score
4 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 Fruit St

Boston, MA 02114-2696

Phone: (617) 726-2000

Street-level locationGet directions

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Mailing address

55 Fruit St # 444