HILARY H. UNGER CRNA
NPI 1902229024
Nurse Anesthetist, Certified Registered in Littleton, NH
About Hilary H. Unger Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HILARY H. UNGER CRNA (NPI 1902229024) is an individual nurse anesthetist, certified registered in Littleton, New Hampshire, licensed in New Hampshire (069037-23) and active in the NPI registry since January 2014. She is affiliated with Littleton Regional Healthcare and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Hilary H. Unger Crna 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Littleton Regional Healthcare
Critical Access Hospitals · Littleton, NHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 03561 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LITTLETON, NH 03561
LITTLETON, NH 03561
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 Hilary Unger's NPI number?
The NPI number for Hilary Unger is 1902229024. It was assigned to this individual provider in the NPPES registry on January 24, 2014. The provider is also known as Hilary H. Seymour.
Where is Hilary Unger located?
Hilary Unger practices at 600 St. Johnsbury Rd., Littleton, NH 03561. The listed phone number is (603) 444-9000.
What is Hilary Unger's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Hilary Unger enrolled in Medicare?
Yes. Hilary Unger 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.
What insurance does Hilary Unger accept?
Health plans from Ambetter from NH Healthy Families list Hilary Unger 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 Hilary Unger affiliated with any hospitals?
According to CMS data, Hilary Unger is affiliated with Littleton Regional Healthcare.
When was this NPI record last updated?
The NPPES record for Hilary Unger was last updated on October 21, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.
