DR. CHRISTOPHER MICHAEL MASHIAK MD
NPI 1699235879
Emergency Medicine in Lebanon, NH
About Dr. Christopher Michael Mashiak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CHRISTOPHER MICHAEL MASHIAK MD (NPI 1699235879) is an individual emergency medicine provider in Lebanon, New Hampshire, licensed in Connecticut (70667) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Connecticut School Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Christopher Michael Mashiak 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
4Medicare enrollment records show Christopher Mashiak reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Manchester, CT 06040
- Reassigned Medicare billing, Connecticut enrollment
- Medicare enrollment name: Emergency Care Services Of Connecticut PC
- 38 clinicians in this Medicare group
Willimantic, CT 06226
- Reassigned Medicare billing, Connecticut enrollment
- 104 clinicians in this Medicare group
Meriden, CT 06451
- Reassigned Medicare billing, Connecticut enrollment
- 96 clinicians in this Medicare group
Waterbury, CT 06708
- Reassigned Medicare billing, Connecticut enrollment
- 83 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03756 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.
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.
LEBANON, NH 03756
LEBANON, NH 03756
LEBANON, NH 03756
LEBANON, NH 03756
LEBANON, NH 03756
LEBANON, NH 03756
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 Christopher Mashiak's NPI number?
The NPI number for Christopher Mashiak is 1699235879. It was assigned to this individual provider in the NPPES registry on March 22, 2019.
Where is Christopher Mashiak located?
Christopher Mashiak practices at 1 Medical Center Dr, Lebanon, NH 03756. The listed phone number is (603) 653-0400.
What is Christopher Mashiak's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Christopher Mashiak enrolled in Medicare?
Yes. Christopher Mashiak 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 Christopher Mashiak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Mashiak reassigns Medicare benefits to 4 organizations: Emergency Care Services Of Connecticut, P.C. (Manchester, CT), Northeast Emergency Medicine Specialists, LLC (Willimantic, CT), Nems PLLC (Meriden, CT) and Nems W LLC (Waterbury, CT). 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 Christopher Mashiak'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 Christopher Mashiak was last updated on May 25, 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.
# Dr. Christopher Michael Mashiak, MD · NPI 1699235879
Emergency Medicine physician in Lebanon, New Hampshire. Individual provider, active in the CMS NPPES registry since March 22, 2019.
## Identity
- **NPI:** 1699235879 (Entity type: Individual)
- **Enumerated:** March 22, 2019
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 70667 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 MEDICAL CENTER DR, Lebanon, NH 03756-1000
- **Phone:** (603) 653-0400
## 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): Emergency Care Services Of Connecticut, P.C. (NPI 1518519461, Manchester, CT); Northeast Emergency Medicine Specialists, LLC (NPI 1982889598, Willimantic, CT); Nems PLLC (NPI 1114482882, Meriden, CT); Nems W LLC (NPI 1760325666, Waterbury, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** May 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1699235879) · Data from the CMS NPPES public registry.