MR. MARTIN RUZEK MD
NPI 1265411268
Hospitalist in Exeter, NH
About Mr. Martin Ruzek Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARTIN RUZEK MD (NPI 1265411268) is an individual hospitalist provider in Exeter, New Hampshire, licensed in New Hampshire (14359) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Nantucket Cottage Hospital, and is a graduate of Other (1995).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Mr. Martin Ruzek 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
8Medicare enrollment records show Martin Ruzek reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Exeter, NH 03833
- Reassigned Medicare billing, New Hampshire enrollment
- 395 clinicians in this Medicare group
York, ME 03909
- Reassigned Medicare billing, Maine enrollment
- 347 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 1,574 clinicians in this Medicare group
Watertown, MA 02472
- Reassigned Medicare billing, Massachusetts enrollment
- 991 clinicians in this Medicare group
Portland, ME 04102
- Reassigned Medicare billing, Maine enrollment
- 322 clinicians in this Medicare group
Gardner, MA 01440
- Reassigned Medicare billing, Massachusetts enrollment
- 344 clinicians in this Medicare group
Athol, MA 01331
- Reassigned Medicare billing, Massachusetts enrollment
- 324 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 206 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 8
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Nantucket Cottage Hospital
Acute Care Hospitals · Nantucket, MAExeter Hospital Inc
Acute Care Hospitals · Exeter, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03833 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.
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 Martin Ruzek's NPI number?
The NPI number for Martin Ruzek is 1265411268. It was assigned to this individual provider in the NPPES registry on January 10, 2006.
Where is Martin Ruzek located?
Martin Ruzek practices at 5 Alumni Dr Fl 2, Exeter, NH 03833. The listed phone number is (603) 580-7525.
What is Martin Ruzek's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Martin Ruzek enrolled in Medicare?
Yes. Martin Ruzek 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 Martin Ruzek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Ruzek reassigns Medicare benefits to 8 organizations: Core Physicians, LLC (Exeter, NH), York Hospital (York, ME), Lahey Clinic, Inc. (Burlington, MA), Steward Medical Group, Inc (Watertown, MA), Mercy Hospital (Portland, ME) and 3 more organizations, listed in the Medicare section above. 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 Martin Ruzek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Martin Ruzek accept?
Health plans from Anthem Blue Cross and Blue Shield, Taro Health and WellSense Health Plan list Martin Ruzek 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 Martin Ruzek affiliated with any hospitals?
According to CMS data, Martin Ruzek is affiliated with Nantucket Cottage Hospital and Exeter Hospital Inc.
When was this NPI record last updated?
The NPPES record for Martin Ruzek was last updated on October 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Mr. Martin Ruzek, MD · NPI 1265411268
Hospitalist physician in Exeter, New Hampshire. Individual provider, active in the CMS NPPES registry since January 10, 2006.
## Identity
- **NPI:** 1265411268 (Entity type: Individual)
- **Enumerated:** January 10, 2006
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 14359 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 5 ALUMNI DR FL 2, Exeter, NH 03833-2128
- **Phone:** (603) 580-7525 · **Fax:** (603) 580-7542
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Core Physicians, LLC (NPI 1336330588, Exeter, NH); York Hospital (NPI 1376528398, York, ME); Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA); Steward Medical Group, Inc (NPI 1629398219, Watertown, MA); Mercy Hospital (NPI 1629078712, Portland, ME); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1995
## Record status
- **NPPES last updated:** October 16, 2025
- **Other identifiers:** Medicaid 3076070 (NH)
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Source: [NPI Profile](https://npiprofile.com/npi/1265411268) · Data from the CMS NPPES public registry.