GWENDOLYN MERCHANT CRNP-PMH
NPI 1578844601
Nurse Practitioner - Psychiatric/Mental Health in Crofton, MD
About Gwendolyn Merchant Crnp-pmh NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GWENDOLYN MERCHANT CRNP-PMH (NPI 1578844601) is an individual psychiatric/mental health provider in Crofton, Maryland, licensed in Maryland (R263556) and active in the NPI registry since September 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Bethel Park, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 5
Secondary Practice Location 1
Other Identifiers 1
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 Merchant Crnp-pmh 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 Reassignments
4Medicare enrollment records show Gwendolyn Merchant reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Arnold, MD 21012
- Reassigned Medicare billing, Maryland enrollment
- Medicare enrollment name: Arundel Mental Health Professionals Lc
- 124 clinicians in this Medicare group
Phoenixville, PA 19460
- Reassigned Medicare billing, Pennsylvania enrollment
- 226 clinicians in this Medicare group
Philadelphia, PA 19133
- Reassigned Medicare billing, Pennsylvania enrollment
- 30 clinicians in this Medicare group
Philadelphia, PA 19134
- Reassigned Medicare billing, Pennsylvania enrollment
- 196 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CROFTON, MD 21114
CROFTON, MD 21114
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 Merchant's NPI number?
The NPI number for Gwendolyn Merchant is 1578844601. It was assigned to this individual provider in the NPPES registry on September 2, 2011.
Where is Gwendolyn Merchant located?
Gwendolyn Merchant practices at 1662 Village Grn Ste 100, Crofton, MD 21114. The listed phone number is (410) 757-2077.
What is Gwendolyn Merchant's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Gwendolyn Merchant enrolled in Medicare?
Yes. Gwendolyn Merchant 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 organizations bill Medicare for Gwendolyn Merchant's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gwendolyn Merchant reassigns Medicare benefits to 4 organizations: Arundel Mental Health Professionals L.C. (Arnold, MD), Regional Womens Health Group LLC (Phoenixville, PA), Ahpaffs,llc (Philadelphia, PA) and Osh - PA Physicians Group, PC (Philadelphia, PA). Each 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 Merchant's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Gwendolyn Merchant was last updated on March 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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 Merchant, CRNP-PMH · NPI 1578844601
Psychiatric/Mental Health physician in Crofton, Maryland. Individual provider, active in the CMS NPPES registry since September 2, 2011.
## Identity
- **NPI:** 1578844601 (Entity type: Individual)
- **Enumerated:** September 2, 2011
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** R263556 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 1662 VILLAGE GRN STE 100, Crofton, MD 21114-2014
- **Phone:** (410) 757-2077
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Arundel Mental Health Professionals L.C. (NPI 1073649521, Arnold, MD); Regional Womens Health Group LLC (NPI 1750880118, Phoenixville, PA); Ahpaffs,llc (NPI 1275985814, Philadelphia, PA); Osh - PA Physicians Group, PC (NPI 1811405533, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** March 12, 2025
- **Other identifiers:** Medicaid 232212638 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1578844601) · Data from the CMS NPPES public registry.