MARK L MCALLISTER MD
NPI 1295050755
Psychiatry & Neurology - Neurology in Scarborough, ME
About Mark L Mcallister Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK L MCALLISTER MD (NPI 1295050755) is an individual neurology provider in Scarborough, Maine, licensed in Maine (MD21560) and active in the NPI registry since March 2010. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains a secondary practice location in Boston.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mark L Mcallister Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Mark Mcallister reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- 69 clinicians in this Medicare group
Scarborough, ME 04074
- Reassigned Medicare billing, Maine enrollment
- Medicare enrollment name: Mainehealth
- 3,140 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Maine Medical Center
Acute Care Hospitals · Portland, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04074 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SCARBOROUGH, ME 04074
SCARBOROUGH, ME 04074
SCARBOROUGH, ME 04074
SCARBOROUGH, ME 04074
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Mcallister's NPI number?
The NPI number for Mark Mcallister is 1295050755. It was assigned to this individual provider in the NPPES registry on March 28, 2010.
Where is Mark Mcallister located?
Mark Mcallister practices at 92 Campus Dr Ste B, Scarborough, ME 04074. The listed phone number is (207) 883-1414.
What is Mark Mcallister's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Mark Mcallister enrolled in Medicare?
Yes. Mark Mcallister is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Mark Mcallister's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mcallister reassigns Medicare benefits to 2 organizations: Maine Medical Partners (Scarborough, ME) and Maine Medical Partners (Scarborough, ME). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Mcallister's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Mcallister accept?
Health plans from Taro Health list Mark Mcallister as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Mcallister affiliated with any hospitals?
According to CMS data, Mark Mcallister is affiliated with Maine Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Mcallister was last updated on April 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mark L Mcallister, MD · NPI 1295050755
Neurology physician in Scarborough, Maine. Individual provider, active in the CMS NPPES registry since March 28, 2010.
## Identity
- **NPI:** 1295050755 (Entity type: Individual)
- **Enumerated:** March 28, 2010
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** MD21560 (Maine)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 92 CAMPUS DR STE B, Scarborough, ME 04074-7229
- **Phone:** (207) 883-1414 · **Fax:** (207) 883-1010
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Maine Medical Partners (NPI 1215269626, Scarborough, ME); Maine Medical Partners (NPI 1346687167, Scarborough, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** April 1, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1295050755) · Data from the CMS NPPES public registry.