Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Alison Renee Greco

Q: What type of organization is Alison Renee Greco?

Alison Renee Greco is registered in NPPES as a Clinic/Center (its primary provider taxonomy).

Clinic/Center in Boston, MA · enumerated 2018 · authorized official Alison Greco, Acupuncturist/Herbalist.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1639678253

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Registry record

Entity type Organization (Type 2)

Legal business name Alison Renee Greco

Other name <Unavail>

Practice address 20 Newbury St Ste 4, Boston, MA, 02116

Phone (617) 829-4040

Enumeration date Feb 9, 2018

Last updated in NPPES Feb 9, 2018

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Alison Greco

Title Acupuncturist/Herbalist

Phone (617) 829-4040

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Alison Renee Greco?

Alison Renee Greco is registered in NPPES as a Clinic/Center (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-09.