What is Abby Markham's NPI number?

Abby Markham's National Provider Identifier (NPI) is 1164718540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Abby Markham's specialty?

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

Where is Abby Markham located?

Abby Markham's practice location on file with NPPES is 22 Bramhall Street, Portland, ME 04103.

What is Abby Markham's phone number?

The practice phone number listed in the NPPES registry for Abby Markham is (207) 662-2541.

Does Abby Markham accept Medicare?

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

Is Abby Markham's NPI active?

Yes — Abby Markham's NPI (1164718540) is active in the NPPES registry as of the last update on 2014-12-22.

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Abby Markham, MD

NPI 1164718540 · Pediatrics Physician · Portland, ME

Abby Markham, MD is a Pediatrics Physician provider in Portland, ME (NPI 1164718540).

Provider details

NPI number: 1164718540
Entity type: Individual
Primary specialty: Pediatrics PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Female
Sole proprietor: No

Practice location

22 Bramhall Street

Maine Medical Center Dept of Pediatrics

Portland, ME 04103

Phone: (207) 662-2541

Fax: (207) 662-3172

Street-level locationGet directions

More ME providers

Mailing address

22 Bramhall Street

Portland, ME 04102

Specialties & taxonomies

Pediatrics PhysicianPrimary208000000XLicense MD20135 (ME)
Allopathic & Osteopathic Physicians
Student in an Organized Health Care Education/Training Program390200000X
Student, Health Care

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

Profile Score

Detailed profile(75/100 index)

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

Registry tenure38% of score
15 yrs in NPPES registry
Profile completeness38% of score
83% 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.

Enumerated: 2011-06-23
Last updated: 2014-12-22

Frequently asked questions

What is Abby Markham's NPI number?: Abby Markham's National Provider Identifier (NPI) is 1164718540, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Abby Markham's specialty?: Abby Markham is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
Where is Abby Markham located?: Abby Markham's practice location on file with NPPES is 22 Bramhall Street, Portland, ME 04103.
What is Abby Markham's phone number?: The practice phone number listed in the NPPES registry for Abby Markham is (207) 662-2541.
Does Abby Markham accept Medicare?: Abby Markham is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Abby Markham's NPI active?: Yes — Abby Markham's NPI (1164718540) is active in the NPPES registry as of the last update on 2014-12-22.

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

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions