What is John Gerlach's NPI number?

John Gerlach's National Provider Identifier (NPI) is 1841379120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is John Gerlach's specialty?

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

Where is John Gerlach located?

John Gerlach's practice location on file with NPPES is 2311 N Prospect, Milwaukee, WI 53211.

What is John Gerlach's phone number?

The practice phone number listed in the NPPES registry for John Gerlach is (414) 319-3000.

Is John Gerlach's NPI active?

Yes — John Gerlach's NPI (1841379120) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

John Gerlach, MD

NPI 1841379120 · Internal Medicine Physician · Milwaukee, WI

John Gerlach, MD is a Internal Medicine Physician provider in Milwaukee, WI (NPI 1841379120).

Provider details

NPI number: 1841379120
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 24312 (WI)

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense 24312 (WI)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(90/100 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

2311 N Prospect

Milwaukee, WI 53211

Phone: (414) 319-3000

Street-level locationGet directions

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Mailing address