Robert Gershan, M.D.
NPI 1740253475 · Internal Medicine Physician · Menomonee Falls, WI
Robert Gershan, M.D. is a Internal Medicine Physician provider in Menomonee Falls, WI (NPI 1740253475).
Provider details
- NPI number
- 1740253475
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 23058 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
Mailing address
Registry dates
- Enumerated
- 2006-02-13
- Last updated
- 2014-02-03
Frequently asked questions
- What is Robert Gershan's NPI number?
- Robert Gershan's National Provider Identifier (NPI) is 1740253475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Gershan's specialty?
- Robert Gershan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Gershan located?
- Robert Gershan's practice location on file with NPPES is W180n7950 Town Hall Rd, Menomonee Falls, WI 53051-4049.
- What is Robert Gershan's phone number?
- The practice phone number listed in the NPPES registry for Robert Gershan is (262) 255-2500.
- Is Robert Gershan's NPI active?
- Yes — Robert Gershan's NPI (1740253475) is active in the NPPES registry as of the last update on 2014-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.