Dr Margot Gay Mahan & Assoc PC
NPI 1083929327 · Clinical Psychologist · Naperville, IL
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dr Margot Gay Mahan & Assoc PC is a Clinical Psychologist organization in Naperville, IL (NPI 1083929327).
Provider details
- NPI number
- 1083929327
- Entity type
- Organization
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Margot Mahan, President(312) 719-1360
- License
- 071006277 (IL)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-08-11
- Last updated
- 2010-08-11
Frequently asked questions
- What is Dr Margot Gay Mahan & Assoc PC's NPI number?
- Dr Margot Gay Mahan & Assoc PC's National Provider Identifier (NPI) is 1083929327, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr Margot Gay Mahan & Assoc PC?
- Dr Margot Gay Mahan & Assoc PC is classified in the NPPES registry as Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Dr Margot Gay Mahan & Assoc PC located?
- Dr Margot Gay Mahan & Assoc PC's practice location on file with NPPES is 1555 Naperville Wheaton Rd, Naperville, IL 60563-1557.
- What is Dr Margot Gay Mahan & Assoc PC's phone number?
- The practice phone number listed in the NPPES registry for Dr Margot Gay Mahan & Assoc PC is (312) 719-1360.
- Does Dr Margot Gay Mahan & Assoc PC accept Medicare?
- Dr Margot Gay Mahan & Assoc PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Dr Margot Gay Mahan & Assoc PC?
- The authorized official listed on Dr Margot Gay Mahan & Assoc PC's NPPES record is Margot Mahan, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr Margot Gay Mahan & Assoc PC's NPI active?
- Yes — Dr Margot Gay Mahan & Assoc PC's NPI (1083929327) is active in the NPPES registry as of the last update on 2010-08-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.