What is John Garber's NPI number?

John Garber's National Provider Identifier (NPI) is 1558566109, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Garber's specialty?

John Garber is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).

Where is John Garber located?

John Garber's practice location on file with NPPES is Massachusetts General Hospital, Boston, MA 02114.

What is John Garber's phone number?

The practice phone number listed in the NPPES registry for John Garber is (617) 724-6113.

Is John Garber's NPI active?

Yes — John Garber's NPI (1558566109) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

John Garber, M.D.

NPI 1558566109 · Gastroenterology Physician · Boston, MA

John Garber, M.D. is a Gastroenterology Physician provider in Boston, MA (NPI 1558566109).

Provider details

NPI number: 1558566109
Entity type: Individual
Primary specialty: Gastroenterology PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Male
Sole proprietor: No
License: L-232770 (MA)

Specialties & taxonomies

Gastroenterology PhysicianPrimary207RG0100XLicense L-232770 (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

Massachusetts General Hospital

55 Fruit Street

Boston, MA 02114

Phone: (617) 724-6113

Approximate (ZIP-level) locationGet directions

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Mailing address