Steven Mershon, M.D.
NPI 1265440846 · Psychiatry Physician · Glenview, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Mershon, M.D. is a Psychiatry Physician provider in Glenview, IL (NPI 1265440846).
Provider details
- NPI number
- 1265440846
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- Geriatric Psychiatry Physician2084P0805X
Allopathic & Osteopathic Physicians
Profile Score
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
83% 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
- 2006-08-03
- Last updated
- 2025-09-11
Frequently asked questions
- What is Steven Mershon's NPI number?
- Steven Mershon's National Provider Identifier (NPI) is 1265440846, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Mershon's specialty?
- Steven Mershon is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Mershon located?
- Steven Mershon's practice location on file with NPPES is 1500 Waukegan Rd Ste 213, Glenview, IL 60025-2165.
- What is Steven Mershon's phone number?
- The practice phone number listed in the NPPES registry for Steven Mershon is (847) 998-5556.
- Does Steven Mershon accept Medicare?
- Steven Mershon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Mershon's NPI active?
- Yes — Steven Mershon's NPI (1265440846) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.