Gwendolyn Messer, M.D.
NPI 1881724946 · Child & Adolescent Psychiatry Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwendolyn Messer, M.D. is a Child & Adolescent Psychiatry Physician provider in Philadelphia, PA (NPI 1881724946).
Provider details
- NPI number
- 1881724946
- Entity type
- Individual
- Primary specialty
- Child & Adolescent Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036096772 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 180 N Michigan AveSuite 700Chicago, IL 60601-7401Phone: (312) 726-4011
- 180 N Michigan AveSuite 700Chicago, IL 60601-7401Phone: (312) 726-4011
Registry dates
- Enumerated
- 2007-03-07
- Last updated
- 2019-02-18
Frequently asked questions
- What is Gwendolyn Messer's NPI number?
- Gwendolyn Messer's National Provider Identifier (NPI) is 1881724946, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwendolyn Messer's specialty?
- Gwendolyn Messer is listed in the NPPES registry with a primary specialty of Child & Adolescent Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Gwendolyn Messer located?
- Gwendolyn Messer's practice location on file with NPPES is 3401 Civic Center Blvd, Philadelphia, PA 19104.
- What is Gwendolyn Messer's phone number?
- The practice phone number listed in the NPPES registry for Gwendolyn Messer is (215) 590-7131.
- Does Gwendolyn Messer accept Medicare?
- Gwendolyn Messer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwendolyn Messer's NPI active?
- Yes — Gwendolyn Messer's NPI (1881724946) is active in the NPPES registry as of the last update on 2019-02-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.