DR. MARY E LYSTER MD
NPI 1790715654
Family Medicine in Raymond, NH
About Dr. Mary E Lyster Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY E LYSTER MD (NPI 1790715654) is an individual family medicine provider in Raymond, New Hampshire, licensed in New Hampshire (38126) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Exeter Hospital Inc, and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Mary E Lyster 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
3Medicare enrollment records show Mary Lyster reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Raymond, NH 03077
- Reassigned Medicare billing, New Hampshire enrollment
- 39 clinicians in this Medicare group
Warwick, RI 02886
- Reassigned Medicare billing, Rhode Island enrollment
- 60 clinicians in this Medicare group
Charlestown, RI 02813
- Reassigned Medicare billing, Rhode Island enrollment
- 9 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Exeter Hospital Inc
Acute Care Hospitals · Exeter, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03077 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.
RAYMOND, NH 03077
RAYMOND, NH 03077
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 Mary Lyster's NPI number?
The NPI number for Mary Lyster is 1790715654. It was assigned to this individual provider in the NPPES registry on July 4, 2006.
Where is Mary Lyster located?
Mary Lyster practices at 128 Route 27, Raymond, NH 03077. The listed phone number is (603) 883-1626.
What is Mary Lyster's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mary Lyster enrolled in Medicare?
Yes. Mary Lyster 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 Mary Lyster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Lyster reassigns Medicare benefits to 3 organizations: Lamprey Health Care Inc (Raymond, NH), Osh - Ri Physicians Group, PC (Warwick, RI) and Narragansett Indian Tribe (Charlestown, RI). 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 Mary Lyster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Lyster accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Mary Lyster 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 Mary Lyster affiliated with any hospitals?
According to CMS data, Mary Lyster is affiliated with Exeter Hospital Inc.
When was this NPI record last updated?
The NPPES record for Mary Lyster was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. Mary E Lyster, MD · NPI 1790715654
Family Medicine physician in Raymond, New Hampshire. Individual provider, active in the CMS NPPES registry since July 4, 2006.
## Identity
- **NPI:** 1790715654 (Entity type: Individual)
- **Enumerated:** July 4, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 38126 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 128 ROUTE 27, Raymond, NH 03077-1220
- **Phone:** (603) 883-1626
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Lamprey Health Care Inc (NPI 1134702954, Raymond, NH); Osh - Ri Physicians Group, PC (NPI 1063984813, Warwick, RI); Narragansett Indian Tribe (NPI 1760532451, Charlestown, RI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** August 3, 2026
- **Other identifiers:** Medicaid 7004954 (RI)
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Source: [NPI Profile](https://npiprofile.com/npi/1790715654) · Data from the CMS NPPES public registry.