MARK SPENCER MD
NPI 1255837902
Orthopaedic Surgery in Augusta, ME
About Mark Spencer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK SPENCER MD (NPI 1255837902) is an individual orthopaedic surgery provider in Augusta, Maine, licensed in Maine (MD27927) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, is affiliated with Maine General Medical Center, and maintains a secondary practice location in Farmington.
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 Spencer 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 Spencer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Augusta, ME 04330
- Reassigned Medicare billing, Maine enrollment
- 978 clinicians in this Medicare group
Tyler, TX 75701
- Reassigned Medicare billing, Texas enrollment
- 5,299 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
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 General Medical Center
Acute Care Hospitals · Augusta, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04330 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Mark Spencer's NPI number?
The NPI number for Mark Spencer is 1255837902. It was assigned to this individual provider in the NPPES registry on April 2, 2018.
Where is Mark Spencer located?
Mark Spencer practices at 15 Enterprise Dr, Augusta, ME 04330. The listed phone number is (207) 621-8700.
What is Mark Spencer's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Mark Spencer enrolled in Medicare?
Yes. Mark Spencer 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 Spencer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Spencer reassigns Medicare benefits to 2 organizations: Mainegeneral Medical Center (Augusta, ME) and The University Of Texas Southwestern Medical Center At Dallas (Tyler, TX). 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 Spencer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Spencer accept?
Health plans from Anthem Blue Cross and Blue Shield list Mark Spencer 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 Spencer affiliated with any hospitals?
According to CMS data, Mark Spencer is affiliated with Maine General Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Spencer was last updated on September 9, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mark Spencer, MD · NPI 1255837902
Orthopaedic Surgery physician in Augusta, Maine. Individual provider, active in the CMS NPPES registry since April 2, 2018.
## Identity
- **NPI:** 1255837902 (Entity type: Individual)
- **Enumerated:** April 2, 2018
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** MD27927 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 15 ENTERPRISE DR, Augusta, ME 04330-7997
- **Phone:** (207) 621-8700
## 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): Mainegeneral Medical Center (NPI 1083949184, Augusta, ME); The University Of Texas Southwestern Medical Center At Dallas (NPI 1417099599, Tyler, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of South Carolina School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** September 9, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1255837902) · Data from the CMS NPPES public registry.