GWENDOLYN MESSER M.D.
NPI 1881724946
Psychiatry & Neurology - Child & Adolescent Psychiatry in Philadelphia, PA
About Gwendolyn Messer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GWENDOLYN MESSER M.D. (NPI 1881724946) is an individual child & adolescent psychiatry provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD465837) and active in the NPI registry since March 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of Emory University School Of Medicine (1992).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gwendolyn Messer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Gwendolyn Messer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Camden, NJ 08103
- Reassigned Medicare billing, New Jersey enrollment
- 75 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gwendolyn Messer's NPI number?
The NPI number for Gwendolyn Messer is 1881724946. It was assigned to this individual provider in the NPPES registry on March 7, 2007.
Where is Gwendolyn Messer located?
Gwendolyn Messer practices at 3401 Civic Center Blvd Division Of Child And Adolescent Psychiatry, Philadelphia, PA 19104. The listed phone number is (215) 590-7131.
What is Gwendolyn Messer's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Gwendolyn Messer enrolled in Medicare?
Yes. Gwendolyn Messer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Gwendolyn Messer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gwendolyn Messer reassigns Medicare benefits to Cmc Psychiatric Associates, PC (Camden, NJ). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gwendolyn Messer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gwendolyn Messer accept?
Health plans from Oscar Health list Gwendolyn Messer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gwendolyn Messer was last updated on February 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Gwendolyn Messer, M.D. · NPI 1881724946
Child & Adolescent Psychiatry physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since March 7, 2007.
## Identity
- **NPI:** 1881724946 (Entity type: Individual)
- **Enumerated:** March 7, 2007
- **Primary specialty:** Psychiatry & Neurology - Child & Adolescent Psychiatry · taxonomy 2084P0804X
- **State license:** MD465837 (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3401 CIVIC CENTER BLVD, DIVISION OF CHILD AND ADOLESCENT PSYCHIATRY, Philadelphia, PA 19104
- **Phone:** (215) 590-7131
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Cmc Psychiatric Associates, PC (NPI 1982646634, Camden, NJ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Emory University School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** February 18, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1881724946) · Data from the CMS NPPES public registry.