DR. LYDIA S GRONDIN MD
NPI 1003891136
Anesthesiology in Burlington, VT
About Dr. Lydia S Grondin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LYDIA S GRONDIN MD (NPI 1003891136) is an individual anesthesiology provider in Burlington, Vermont, licensed in Vermont (042-0011142) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, is affiliated with Mary Hitchcock Memorial Hospital, and maintains a secondary practice location in Lebanon.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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. Lydia S Grondin 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 Lydia Grondin reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Burlington, VT 05401
- Reassigned Medicare billing, Vermont enrollment
- 1,643 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,999 clinicians in this Medicare group
Lebanon, NH 03756
- Reassigned Medicare billing, New Hampshire enrollment
- 2,620 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.
Mary Hitchcock Memorial Hospital
Acute Care Hospitals · Lebanon, NHCentral Vermont Medical Center
Acute Care Hospitals · Barre, VTOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BURLINGTON, VT 05401
BURLINGTON, VT 05401
BURLINGTON, VT 05401
BURLINGTON, VT 05401
BURLINGTON, VT 05401
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 Lydia Grondin's NPI number?
The NPI number for Lydia Grondin is 1003891136. It was assigned to this individual provider in the NPPES registry on December 13, 2005.
Where is Lydia Grondin located?
Lydia Grondin practices at 111 Colchester Ave Dept Of Anesthesia Wp2, Burlington, VT 05401. The listed phone number is (802) 847-2415.
What is Lydia Grondin's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Lydia Grondin enrolled in Medicare?
Yes. Lydia Grondin 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 Lydia Grondin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Grondin reassigns Medicare benefits to 3 organizations: University Of Vermont Medical Center Inc (Burlington, VT), Dartmouth-Hitchcock Clinic (Lebanon, NH) and Mary Hitchcock Memorial Hospital (Lebanon, NH). 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 Lydia Grondin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lydia Grondin accept?
Health plans from Ambetter from NH Healthy Families and Anthem Blue Cross and Blue Shield list Lydia Grondin 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 Lydia Grondin affiliated with any hospitals?
According to CMS data, Lydia Grondin is affiliated with Mary Hitchcock Memorial Hospital and Central Vermont Medical Center.
When was this NPI record last updated?
The NPPES record for Lydia Grondin was last updated on April 23, 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. Lydia S Grondin, MD · NPI 1003891136
Anesthesiology physician in Burlington, Vermont. Individual provider, active in the CMS NPPES registry since December 13, 2005.
## Identity
- **NPI:** 1003891136 (Entity type: Individual)
- **Enumerated:** December 13, 2005
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 042-0011142 (Vermont)
- **Sole proprietor:** No
## Practice location
- **Address:** 111 COLCHESTER AVE, DEPT OF ANESTHESIA WP2, Burlington, VT 05401-1473
- **Phone:** (802) 847-2415
## 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): University Of Vermont Medical Center Inc (NPI 1659309615, Burlington, VT); Dartmouth-Hitchcock Clinic (NPI 1548210198, Lebanon, NH); Mary Hitchcock Memorial Hospital (NPI 1023092053, Lebanon, NH) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** April 23, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1003891136) · Data from the CMS NPPES public registry.