Tammy Lynn Merson, MSN, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Easton, MD
Tammy Lynn Merson, MSN, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Easton, Maryland, and NPI 1235578261, issued on Jun 24, 2013. Check the license (Maryland R129055, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tammy Lynn Merson
- Credential
- MSN, PMHNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- R129055 MD
Self-reported in NPPES; status is on the state search - Practice location
- 29466 Pintail Dr, Easton, MD 21601
- Phone
- (443) 746-3698
- Enumerated
- Jun 24, 2013
- Record last updated
- Jan 30, 2026
- Medicare enrollment
- Enrolled (PECOS I20260211001806); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 2,373 in Maryland → Look up another NPI →
Also registered at 29466 Pintail Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tammy Lynn Merson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R129055Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Shore Neurocognitive Health LLCEaston, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tammy Lynn Merson among 2,373 psychiatric/mental health nurse practitioner records in Maryland
Tammy Lynn Merson, MSN, PMHNP-BC 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 2013, is newer than 14% of them.
- NPI issued2013 · 14% of these records are older, 83% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2026 · median 2021 among the 1,409 with a school on file
- Record last updated2026 · 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).
17 psychiatric/mental health nurse practitioner records list a practice address in Easton
They are 17 of the 928 NPPES records with a practice address in Easton, and 2,373 psychiatric/mental health nurse practitioner records in Maryland.
All 2,373 in Maryland → Every provider in Easton → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Amanda Andrew, NPEaston, MD 216011811596182
- Danyell Bishop Lewis, NPEaston, MD 216011023679404
- Mary Brinsfield, PMHNP-BCEaston, MD 216011164067476
- Alexa Burley, CRNP-PMHEaston, MD 216011851905491
- Ashley Decarlo, CRNPEaston, MD 216011548454804
- Aisha Hassan-Davis, PMHNPEaston, MD 216011053951004
- Teresa Hulseman, NPEaston, MD 216011144667957
- Lateshia JacksonEaston, MD 216011063840262
Common questions
What is Tammy Lynn Merson, MSN, PMHNP-BC's NPI number?
Tammy Lynn Merson, MSN, PMHNP-BC's National Provider Identifier (NPI) is 1235578261, issued on Jun 24, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Tammy Lynn Merson, MSN, PMHNP-BC located?
The NPPES record lists a practice address at 29466 Pintail Dr, Easton, MD, 21601. Phone: (443) 746-3698. Providers update this record themselves, so call before visiting.
How can I verify Tammy Lynn Merson, MSN, PMHNP-BC's license?
NPPES lists Maryland license number R129055, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity 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.