MR. MARK O BROWN MD
NPI 1982683496
Internal Medicine in Bar Harbor, ME
About Mr. Mark O Brown Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK O BROWN MD (NPI 1982683496) is an individual internal medicine provider in Bar Harbor, Maine, licensed in Maine (013188) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of Ohio State University College Of Medicine (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Mr. Mark O Brown 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 Reassignment
Medicare enrollment records show Mark Brown reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Bar Harbor, ME 04609
- Reassigned Medicare billing, Maine enrollment
- 87 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04609 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.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Brown's NPI number?
The NPI number for Mark Brown is 1982683496. It was assigned to this individual provider in the NPPES registry on January 12, 2006.
Where is Mark Brown located?
Mark Brown practices at 10 Wayman Ln, Bar Harbor, ME 04609. The listed phone number is (207) 288-5081.
What is Mark Brown's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mark Brown enrolled in Medicare?
Yes. Mark Brown 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 organization bills Medicare for Mark Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Brown reassigns Medicare benefits to Mount Desert Island Hospital (Bar Harbor, 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 Mark Brown'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 Mark Brown was last updated on July 21, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Mr. Mark O Brown, MD · NPI 1982683496
Internal Medicine physician in Bar Harbor, Maine. Individual provider, active in the CMS NPPES registry since January 12, 2006.
## Identity
- **NPI:** 1982683496 (Entity type: Individual)
- **Enumerated:** January 12, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 013188 (Maine)
- **Sole proprietor:** No
## Practice location
- **Address:** 10 WAYMAN LN, Bar Harbor, ME 04609-1625
- **Phone:** (207) 288-5081 · **Fax:** (207) 288-8612
## 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:** Mount Desert Island Hospital (NPI 1790764512, Bar Harbor, ME), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio State University College Of Medicine, class of 1984
## Record status
- **NPPES last updated:** July 21, 2022
- **Other identifiers:** Medicaid 1790764512-014 (ME); Other MD13188 (ME)
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Source: [NPI Profile](https://npiprofile.com/npi/1982683496) · Data from the CMS NPPES public registry.