Jacqueline Machain, ACNP
NPI 1639214893 · Nurse Practitioner · Boston, MA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jacqueline Machain, ACNP is a Nurse Practitioner provider in Boston, MA (NPI 1639214893).
Provider details
- NPI number
- 1639214893
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ACNP
- Sex
- Female
- Sole proprietor
- No
- License
- RN254598 (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
19 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
- 2007-02-21
- Last updated
- 2025-11-04
- Certified
- 2025-11-04
Frequently asked questions
- What is Jacqueline Machain's NPI number?
- Jacqueline Machain's National Provider Identifier (NPI) is 1639214893, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jacqueline Machain's specialty?
- Jacqueline Machain is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Jacqueline Machain located?
- Jacqueline Machain's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2696.
- What is Jacqueline Machain's phone number?
- The practice phone number listed in the NPPES registry for Jacqueline Machain is (617) 643-2322.
- Does Jacqueline Machain accept Medicare?
- Jacqueline Machain is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jacqueline Machain's NPI active?
- Yes — Jacqueline Machain's NPI (1639214893) is active in the NPPES registry as of the last update on 2025-11-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.