DR. NATHANIEL SIMON TREISTER DMD, DMSC
NPI 1306819388
Dentist - Oral and Maxillofacial Surgery in Lebanon, NH
About Dr. Nathaniel Simon Treister Dmd, Dmsc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NATHANIEL SIMON TREISTER DMD, DMSC (NPI 1306819388) is an individual oral and maxillofacial surgery provider in Lebanon, New Hampshire, licensed in New Hampshire (04799) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Massachusetts General Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Dr. Nathaniel Simon Treister Dmd, Dmsc 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 Nathaniel Treister reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02215
- Reassigned Medicare billing, Massachusetts enrollment
- 1,026 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 37 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 220 clinicians in this Medicare group
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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 7
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Massachusetts General Hospital
Acute Care Hospitals · Boston, MABeth Israel Deaconess Medical Center
Acute Care Hospitals · Boston, MABrigham And Women's Hospital
Acute Care Hospitals · Boston, MAMary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHPhysician 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.
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 Nathaniel Treister's NPI number?
The NPI number for Nathaniel Treister is 1306819388. It was assigned to this individual provider in the NPPES registry on February 9, 2006.
Where is Nathaniel Treister located?
Nathaniel Treister practices at 1 Medical Center Dr, Lebanon, NH 03756. The listed phone number is (603) 308-1472.
What is Nathaniel Treister's specialty?
The primary specialty registered for this NPI is Dentist, specializing in Oral and Maxillofacial Surgery, with taxonomy code 1223S0112X.
Is Nathaniel Treister enrolled in Medicare?
Yes. Nathaniel Treister 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 Nathaniel Treister's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nathaniel Treister reassigns Medicare benefits to 8 organizations: Mary Hitchcock Memorial Hospital (Lebanon, NH), Dartmouth-Hitchcock Clinic (Lebanon, NH), Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Dana-Farber Cancer Institute, Inc. (Boston, MA) 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 Nathaniel Treister's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nathaniel Treister accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana and Blue Cross and Blue Shield of Oklahoma and 2 other insurers list Nathaniel Treister 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 Nathaniel Treister affiliated with any hospitals?
According to CMS data, Nathaniel Treister is affiliated with Massachusetts General Hospital, Beth Israel Deaconess Medical Center, Brigham And Women's Hospital and Mary Hitchcock Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Nathaniel Treister was last updated on April 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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. Nathaniel Simon Treister, DMD, DMSC · NPI 1306819388
Oral and Maxillofacial Surgery provider in Lebanon, New Hampshire. Individual provider, active in the CMS NPPES registry since February 9, 2006.
## Identity
- **NPI:** 1306819388 (Entity type: Individual)
- **Enumerated:** February 9, 2006
- **Primary specialty:** Dentist - Oral and Maxillofacial Surgery · taxonomy 1223S0112X
- **State license:** 04799 (New Hampshire)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 MEDICAL CENTER DR, Lebanon, NH 03756-0001
- **Phone:** (603) 308-1472
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Mary Hitchcock Memorial Hospital (NPI 1629788237, Lebanon, NH); Dartmouth-Hitchcock Clinic (NPI 1548210198, Lebanon, NH); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Dana-Farber Cancer Institute, Inc. (NPI 1851333686, Boston, MA); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Univ Of Pennsylvania School Of Dental Medicine, class of 2000
## Record status
- **NPPES last updated:** April 4, 2025
- **Other identifiers:** Medicaid 1201514 (MA)
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Source: [NPI Profile](https://npiprofile.com/npi/1306819388) · Data from the CMS NPPES public registry.