KATHERINE H. MARKS MD
NPI 1215564695
Hospitalist in Portland, ME
About Katherine H. Marks Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KATHERINE H. MARKS MD (NPI 1215564695) is an individual hospitalist provider in Portland, Maine, licensed in Massachusetts (152259) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS, is affiliated with Southcoast Hospitals Group, and maintains a secondary practice location in Wareham.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Katherine H. Marks 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 Katherine Marks reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fairhaven, MA 02719
- Reassigned Medicare billing, Massachusetts enrollment
- 1,144 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 4
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.
Southcoast Hospitals Group
Acute Care Hospitals · Fall River, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 04102 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.
PORTLAND, ME 04102
PORTLAND, ME 04102
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 Katherine Marks's NPI number?
The NPI number for Katherine Marks is 1215564695. It was assigned to this individual provider in the NPPES registry on March 25, 2020.
Where is Katherine Marks located?
Katherine Marks practices at 22 Bramhall St, Portland, ME 04102. The listed phone number is (207) 662-0111.
What is Katherine Marks's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Katherine Marks enrolled in Medicare?
Yes. Katherine Marks 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 Katherine Marks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Katherine Marks reassigns Medicare benefits to Southcoast Physicians Group, Inc. (Fairhaven, MA). 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 Katherine Marks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Katherine Marks affiliated with any hospitals?
According to CMS data, Katherine Marks is affiliated with Southcoast Hospitals Group.
When was this NPI record last updated?
The NPPES record for Katherine Marks was last updated on January 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Katherine H. Marks, MD · NPI 1215564695
Hospitalist physician in Portland, Maine. Individual provider, active in the CMS NPPES registry since March 25, 2020.
## Identity
- **NPI:** 1215564695 (Entity type: Individual)
- **Enumerated:** March 25, 2020
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 152259 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 22 BRAMHALL ST, Portland, ME 04102-3175
- **Phone:** (207) 662-0111
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Southcoast Physicians Group, Inc. (NPI 1861830143, Fairhaven, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** January 22, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1215564695) · Data from the CMS NPPES public registry.