What is Allison Caldwell's NPI number?

Allison Caldwell's National Provider Identifier (NPI) is 1881031904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Allison Caldwell's specialty?

Allison Caldwell is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).

Where is Allison Caldwell located?

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

What is Allison Caldwell's phone number?

The practice phone number listed in the NPPES registry for Allison Caldwell is (207) 662-0111.

Does Allison Caldwell accept Medicare?

Allison Caldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Allison Caldwell's NPI active?

Yes — Allison Caldwell's NPI (1881031904) is active in the NPPES registry as of the last update on 2018-03-17.

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Allison Caldwell, M.D.

NPI 1881031904 · Pediatrics Physician · Portland, ME

Allison Caldwell, M.D. is a Pediatrics Physician provider in Portland, ME (NPI 1881031904).

Provider details

NPI number: 1881031904
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: M.D.
Sex: Female
Sole proprietor: Yes
License: MD21640 (ME)

Practice location

22 Bramhall St

Portland, ME 04102-3134

Phone: (207) 662-0111

Street-level locationGet directions

More ME providers

Mailing address

22 Bramhall St

Portland, ME 04102-3134

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense MD21640 (ME)
Allopathic & Osteopathic Physicians
Pediatrics Physician208000000XLicense LP02791 (RI)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

51 N Dunlap St
#100
Memphis, TN 38105-4625
Phone: (901) 287-5437

Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(83/100 index)

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

Registry tenure38% of score
13 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 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.

Enumerated: 2013-05-30
Last updated: 2018-03-17

Frequently asked questions

What is Allison Caldwell's NPI number?: Allison Caldwell's National Provider Identifier (NPI) is 1881031904, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Allison Caldwell's specialty?: Allison Caldwell is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Allison Caldwell located?: Allison Caldwell's practice location on file with NPPES is 22 Bramhall St, Portland, ME 04102-3134.
What is Allison Caldwell's phone number?: The practice phone number listed in the NPPES registry for Allison Caldwell is (207) 662-0111.
Does Allison Caldwell accept Medicare?: Allison Caldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Allison Caldwell's NPI active?: Yes — Allison Caldwell's NPI (1881031904) is active in the NPPES registry as of the last update on 2018-03-17.

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

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Profile Score

Frequently asked questions