DR. STEPHEN BRETT MARKO M.D.
NPI 1265843718
Internal Medicine - Critical Care Medicine in Manchester, NH
About Dr. Stephen Brett Marko M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN BRETT MARKO M.D. (NPI 1265843718) is an individual critical care medicine provider in Manchester, New Hampshire, licensed in New Hampshire (20652) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Dr. Stephen Brett Marko M.d. 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
4Medicare enrollment records show Stephen Marko reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Manchester, NH 03109
- Reassigned Medicare billing, New Hampshire enrollment
- 446 clinicians in this Medicare group
Hampstead, NH 03841
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 clinicians in this Medicare group
Keene, NH 03431
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Lebanon, NH 03766
- Reassigned Medicare billing, New Hampshire enrollment
- 283 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHElliot Hospital
Acute Care Hospitals · Manchester, NHAlice Peck Day Memorial Hospital
Critical Access Hospitals · Lebanon, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03103 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.
MANCHESTER, NH 03103
MANCHESTER, NH 03103
MANCHESTER, NH 03103
MANCHESTER, NH 03103
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 Stephen Marko's NPI number?
The NPI number for Stephen Marko is 1265843718. It was assigned to this individual provider in the NPPES registry on May 17, 2014.
Where is Stephen Marko located?
Stephen Marko practices at 1 Elliot Way, Manchester, NH 03103. The listed phone number is (603) 663-2710.
What is Stephen Marko's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Stephen Marko enrolled in Medicare?
Yes. Stephen Marko 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 Stephen Marko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Marko reassigns Medicare benefits to 4 organizations: Elliot Professional Services (Manchester, NH), Mary Hitchcock Memorial Hospital (Hampstead, NH), Dartmouth-Hitchcock Clinic (Keene, NH) and Alice Peck Day Memorial Hospital (Lebanon, NH). 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 Stephen Marko's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Marko accept?
Health plans from Anthem Blue Cross and Blue Shield and WellSense Health Plan list Stephen Marko 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 Stephen Marko affiliated with any hospitals?
According to CMS data, Stephen Marko is affiliated with Mary Hitchcock Memorial Hospital, Elliot Hospital and Alice Peck Day Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Stephen Marko was last updated on October 4, 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.
# Dr. Stephen Brett Marko, M.D. · NPI 1265843718
Critical Care Medicine physician in Manchester, New Hampshire. Individual provider, active in the CMS NPPES registry since May 17, 2014.
## Identity
- **NPI:** 1265843718 (Entity type: Individual)
- **Enumerated:** May 17, 2014
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 20652 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 ELLIOT WAY, Manchester, NH 03103-3502
- **Phone:** (603) 663-2710
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Elliot Professional Services (NPI 1285627935, Manchester, NH); Mary Hitchcock Memorial Hospital (NPI 1699584219, Hampstead, NH); Dartmouth-Hitchcock Clinic (NPI 1174176861, Keene, NH); Alice Peck Day Memorial Hospital (NPI 1942002274, Lebanon, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** October 4, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1265843718) · Data from the CMS NPPES public registry.