JOHN A MCCALLISTER MD
NPI 1154390268
Pediatrics in Augusta, ME
About John A Mccallister Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN A MCCALLISTER MD (NPI 1154390268) is an individual pediatrics provider in Augusta, Maine, licensed in Maine (018027) and active in the NPI registry since March 2006.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John A Mccallister Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Mccallister reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Augusta, ME 04330
- Reassigned Medicare billing, Maine enrollment
- 978 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.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AUGUSTA, ME 04330
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 John Mccallister's NPI number?
The NPI number for John Mccallister is 1154390268. It was assigned to this individual provider in the NPPES registry on March 14, 2006.
Where is John Mccallister located?
John Mccallister practices at 6 E Chestnut St, Augusta, ME 04330. The listed phone number is (207) 623-2977.
What is John Mccallister's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is John Mccallister enrolled in Medicare?
Yes. John Mccallister is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Mccallister's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Mccallister reassigns Medicare benefits to Mainegeneral Medical Center (Augusta, ME). The 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 John Mccallister's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Mccallister was last updated on December 19, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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.
# John A Mccallister, MD · NPI 1154390268
Pediatrics physician in Augusta, Maine. Individual provider, active in the CMS NPPES registry since March 14, 2006.
## Identity
- **NPI:** 1154390268 (Entity type: Individual)
- **Enumerated:** March 14, 2006
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** 018027 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 6 E CHESTNUT ST, Augusta, ME 04330-5758
- **Phone:** (207) 623-2977 · **Fax:** (207) 626-9374
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Bills Medicare through:** Mainegeneral Medical Center (NPI 1083949184, Augusta, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 19, 2018
- **Other identifiers:** Medicaid 433395099 (ME); Other 07215036 (IL); Medicaid 036073147 (IL); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1154390268) · Data from the CMS NPPES public registry.