Rebecca Mermelstein, PH.D.
NPI 1861561938 · Psychologist · Chicago, IL
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rebecca Mermelstein, PH.D. is a Psychologist provider in Chicago, IL (NPI 1861561938).
Provider details
- NPI number
- 1861561938
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
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
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
- 2006-11-06
- Last updated
- 2007-07-08
Frequently asked questions
- What is Rebecca Mermelstein's NPI number?
- Rebecca Mermelstein's National Provider Identifier (NPI) is 1861561938, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rebecca Mermelstein's specialty?
- Rebecca Mermelstein is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Rebecca Mermelstein located?
- Rebecca Mermelstein's practice location on file with NPPES is 6524 N Whipple St, Chicago, IL 60645-4113.
- What is Rebecca Mermelstein's phone number?
- The practice phone number listed in the NPPES registry for Rebecca Mermelstein is (773) 973-5698.
- Does Rebecca Mermelstein accept Medicare?
- Rebecca Mermelstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rebecca Mermelstein's NPI active?
- Yes — Rebecca Mermelstein's NPI (1861561938) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.