Gwendolyn Merchant, CRNP-PMH
Psychiatric/Mental Health Nurse Practitioner · Crofton, MD
Gwendolyn Merchant, CRNP-PMH is a psychiatric/mental health nurse practitioner with a practice address in Crofton, Maryland, and NPI 1578844601, issued on Sep 2, 2011. Check the license (Maryland R263556, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gwendolyn Merchant
- Credential
- CRNP-PMH
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- R263556 MD
RN578488 PA
SP011515 PA
SPO27315 PA
Self-reported in NPPES; status is on the state search - Practice location
- 1662 Village Grn Ste 100, Crofton, MD 21114
- Phone
- (410) 757-2077
- Enumerated
- Sep 2, 2011
- Record last updated
- Mar 12, 2025
- Medicaid ID
- 232212638 PA
- Medicare enrollment
- Enrolled (PECOS I20250319003706); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,373 in Maryland → Look up another NPI →
Also registered at 1662 Village Grn Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carla Corsey, PSYD, LPClinical Psychologist1093307118
- Andrea Griffin, PH.D. PSYDPsychologist1669630042
Verify Gwendolyn Merchant in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R263556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
31 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Arundel Mental Health Professionals LCCrofton, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gwendolyn Merchant among 2,373 psychiatric/mental health nurse practitioner records in Maryland
Gwendolyn Merchant, CRNP-PMH is one of 2,373 psychiatric/mental health nurse practitioner records with a practice address in Maryland. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 7% of them.
- NPI issued2011 · 7% of these records are older, 91% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · median 2021 among the 1,409 with a school on file
- Record last updated2025 · 19% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 psychiatric/mental health nurse practitioner records list a practice address in Crofton
They are 10 of the 488 NPPES records with a practice address in Crofton, and 2,373 psychiatric/mental health nurse practitioner records in Maryland.
All 2,373 in Maryland → Every provider in Crofton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Sarah Langham, PMHNP-BCCrofton, MD 211141942668785
- Edith Linville, PMHNPCrofton, MD 211141316496326
- Gedeon Longtchi, FNPCrofton, MD 211141689157331
- Courtney MarshallCrofton, MD 211141871512350
- Emefua Njualem, DNPCrofton, MD 211141073108197
- Richard Nkwetta, APRN, PMHNP-BC.Crofton, MD 211141669124731
- Melanie OsefoCrofton, MD 211141629561584
- Mufutiat Oyegunle, PMHNP-BCCrofton, MD 211141386567311
Common questions
What is Gwendolyn Merchant, CRNP-PMH's NPI number?
Gwendolyn Merchant, CRNP-PMH's National Provider Identifier (NPI) is 1578844601, issued on Sep 2, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Gwendolyn Merchant, CRNP-PMH located?
The NPPES record lists a practice address at 1662 Village Grn Ste 100, Crofton, MD, 21114. Phone: (410) 757-2077. Providers update this record themselves, so call before visiting.
How can I verify Gwendolyn Merchant, CRNP-PMH's license?
NPPES lists Maryland license number R263556, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does Gwendolyn Merchant, CRNP-PMH prescribe under Medicare Part D?
In 2024, Gwendolyn Merchant, CRNP-PMH had 31 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.