William Gershan, MD
NPI 1821040403 · Pediatric Pulmonology Physician · Minneapolis, MN
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Gershan, MD is a Pediatric Pulmonology Physician provider in Minneapolis, MN (NPI 1821040403).
Provider details
- NPI number
- 1821040403
- Entity type
- Individual
- Primary specialty
- Pediatric Pulmonology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 58034 (MN)
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
- 2006-05-16
- Last updated
- 2014-07-22
Frequently asked questions
- What is William Gershan's NPI number?
- William Gershan's National Provider Identifier (NPI) is 1821040403, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Gershan's specialty?
- William Gershan is listed in the NPPES registry with a primary specialty of Pediatric Pulmonology Physician (Allopathic & Osteopathic Physicians).
- Where is William Gershan located?
- William Gershan's practice location on file with NPPES is 2512 S 7th St, Minneapolis, MN 55454-1404.
- What is William Gershan's phone number?
- The practice phone number listed in the NPPES registry for William Gershan is (612) 365-6777.
- Does William Gershan accept Medicare?
- William Gershan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Gershan's NPI active?
- Yes — William Gershan's NPI (1821040403) is active in the NPPES registry as of the last update on 2014-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.