NPPES file of Aug 9, 2026

Wp Acquisition Sub LLC in Haverhill, MA

This location of Wp Acquisition Sub bills under NPI 1417420811, an organization record issued on Jan 8, 2019 with the primary taxonomy Psychiatry Physician. It is one of 2 NPIs registered under this name and one of 2 in Haverhill; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1417420811
Legal name
Wp Acquisition Sub LLC
Entity
Type 2 · organization
Primary taxonomy
Psychiatry Physician 2084P0800X
Practice location
76 SUMMER ST, Haverhill, MA 01830
Phone
615-861-6000
Mailing address
Franklin, TN
Enumerated
Jan 8, 2019
Record updated
Jan 20, 2026
Authorized official
Vp & Secretary (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other Haverhill NPI

  1. Wp Acquisition Sub LLC76 SUMMER ST · issued Dec 26, 20181023580479

10 clinicians CMS lists with Wp Acquisition Sub in Haverhill

  1. Lara Chatterton, PMHNPPsychiatric/Mental Health Nurse Practitioner1194497230
  2. Lori DiasPsychiatric/Mental Health Nurse Practitioner1164078713
  3. Alasdair Donald, MDPsychiatry Physician1821028309
  4. Elena Galkina, MDPsychiatry Physician1780726380
  5. Jacob Kagan, MDPsychiatry Physician1336282565
  6. Kevin Kapila, MDInternal Medicine Physician1346224334
  7. Alexander Lipin, MDPsychiatry Physician1851310064
  8. Pierre Mayer, MDPsychiatry Physician1215976212
  9. Philippe Sioufi, MDPsychiatry Physician1336188325
  10. Emily Welsh, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1700295672

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 2 Wp Acquisition Sub NPIs

Every location registered under this name, in 1 city.

See every location

Checking an organization

  1. Confirm the business with the Massachusetts secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

Common questions

Why is the mailing address in Tennessee?

The mailing address in the record (Franklin, TN) is where the organization receives mail. Care is given at the practice location in Haverhill.

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Haverhill NPI should I use?

Ask the office which NPI it bills under; all 2 Haverhill NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.