What is Mackenzie Grant's NPI number?

Mackenzie Grant's National Provider Identifier (NPI) is 1558992552, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Mackenzie Grant's specialty?

Mackenzie Grant is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Mackenzie Grant located?

Mackenzie Grant's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.

What is Mackenzie Grant's phone number?

The practice phone number listed in the NPPES registry for Mackenzie Grant is (207) 772-8850.

Is Mackenzie Grant's NPI active?

Yes — Mackenzie Grant's NPI (1558992552) is active in the NPPES registry as of the last update on 2025-01-08.

IndividualActive

Mackenzie Grant, ACPNP

NPI 1558992552 · Pediatric Nurse Practitioner · Portland, ME

Mackenzie Grant, ACPNP is a Pediatric Nurse Practitioner provider in Portland, ME (NPI 1558992552).

Provider details

NPI number: 1558992552
Entity type: Individual
Primary specialty: Pediatric Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: ACPNP
Sex: Female
Sole proprietor: Yes
License: 2300770 (MA)

Specialties & taxonomies

Pediatric Nurse PractitionerPrimary363LP0200XLicense CNP221665 (ME)
Physician Assistants & Advanced Practice Nursing Providers
Pediatric Nurse Practitioner363LP0200XLicense 2300770 (MA)
Physician Assistants & Advanced Practice Nursing Providers

Profile Score

Established profile(74/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
6 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
4 documented practice locations

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

22 Bramhall St

Portland, ME 04102-3134

Phone: (207) 772-8850

Street-level locationGet directions

More ME providers

Mailing address

22 Bramhall St

Portland, ME 04102-3134

Additional practice locations (3)

300 Longwood Ave
Boston, MA 02115-5724
Phone: (617) 355-6000
818 Congress St
Portland, ME 04102-3112
Phone: (207) 773-8161
Fax: (207) 773-1489
71 US Route 1 Ste C
Scarborough, ME 04074-7174
Phone: (207) 883-5532
Fax: (207) 883-5552

Enumerated: 2020-01-28
Last updated: 2025-01-08
Certified: 2025-01-08

Frequently asked questions

What is Mackenzie Grant's NPI number?: Mackenzie Grant's National Provider Identifier (NPI) is 1558992552, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Mackenzie Grant's specialty?: Mackenzie Grant is listed in the NPPES registry with a primary specialty of Pediatric Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Mackenzie Grant located?: Mackenzie Grant's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.
What is Mackenzie Grant's phone number?: The practice phone number listed in the NPPES registry for Mackenzie Grant is (207) 772-8850.
Is Mackenzie Grant's NPI active?: Yes — Mackenzie Grant's NPI (1558992552) is active in the NPPES registry as of the last update on 2025-01-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.