Melissa Esau, FNP-C
NPI 1861845521 · Family Nurse Practitioner · Acton, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melissa Esau, FNP-C is a Family Nurse Practitioner provider in Acton, MA (NPI 1861845521).
Provider details
- NPI number
- 1861845521
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- RN2285160 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
- 2016-07-18
- Last updated
- 2021-07-27
- Certified
- 2021-07-27
Frequently asked questions
- What is Melissa Esau's NPI number?
- Melissa Esau's National Provider Identifier (NPI) is 1861845521, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melissa Esau's specialty?
- Melissa Esau is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melissa Esau located?
- Melissa Esau's practice location on file with NPPES is 344 Great Rd, Acton, MA 01720.
- What is Melissa Esau's phone number?
- The practice phone number listed in the NPPES registry for Melissa Esau is (978) 264-9130.
- Does Melissa Esau accept Medicare?
- Melissa Esau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melissa Esau's NPI active?
- Yes — Melissa Esau's NPI (1861845521) is active in the NPPES registry as of the last update on 2021-07-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.