Tammy Merson, MSN, PMHNP-BC
NPI 1235578261 · Psychiatric/Mental Health Nurse Practitioner · Easton, MD
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Merson, MSN, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Easton, MD (NPI 1235578261).
Provider details
- NPI number
- 1235578261
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- R129055 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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
Registry dates
- Enumerated
- 2013-06-24
- Last updated
- 2026-01-30
- Certified
- 2026-01-30
Frequently asked questions
- What is Tammy Merson's NPI number?
- Tammy Merson's National Provider Identifier (NPI) is 1235578261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Merson's specialty?
- Tammy Merson is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Tammy Merson located?
- Tammy Merson's practice location on file with NPPES is 29466 Pintail Dr, Easton, MD 21601-9323.
- What is Tammy Merson's phone number?
- The practice phone number listed in the NPPES registry for Tammy Merson is (443) 746-3698.
- Does Tammy Merson accept Medicare?
- Tammy Merson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Merson's NPI active?
- Yes — Tammy Merson's NPI (1235578261) is active in the NPPES registry as of the last update on 2026-01-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.