Lars E Helgeson, MD – Anesthesiology Physician

Key facts

NPI: 1528049210
Entity type: Individual (NPI type 1)
Primary specialty: Anesthesiology Physician 207L00000X
License: 038162 (CT)
Practice address: 20 York St
Ynhh Tompkins Building - 3Rd Floor
New Haven, CT 06510-3220
Phone: (203) 785-2802
Fax: (203) 785-6664
NPI assigned: Nov 9, 2005
Sex: Male
Sole proprietor: No

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Resource Anesthesiology Associates of CT PC Anesthesiology Physician · Torrington, CT · NPI 1447233176

Medicare reassignment Care Compare group NPD ANESTHESIOLOGY · CT
Yale University Anesthesiology Physician · New Haven, CT · NPI 1205822236

Medicare reassignment NPD ANESTHESIOLOGY · CT
Billings Clinic Emergency Care Clinic/Center · Billings, MT · NPI 1326104845

Medicare reassignment NPD MT
Yale University Durable Medical Equipment & Medical Supplies · Fairfield, CT · NPI 1548066962

NPD
Billings Cinic General Acute Care Hospital · Bozeman, MT · NPI 1215660840

NPD
Billings Clinic General Practice Physician · Billings, MT · NPI 1376598714

NPD
Yale University Health Service Clinic/Center · New Haven, CT · NPI 1093862740

NPD (past)

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

The Charlotte Hungerford Hospital General Acute Care Hospital · Torrington, CT · NPI 1629075734

Care Compare affiliation Hospital

Medicare Care Compare profile

Specialty: Anesthesiology
Education: Other, 1988
Medicare assignment: Accepts the Medicare-approved amount as payment in full
Group practices: Resource Anesthesiology Associates of CT PC (28 clinicians)

Practice addresses (Care Compare)

540 Litchfield St
Torrington, CT 06790-6679
Phone (860) 496-6666

Hospital & facility affiliations

Charlotte Hungerford Hospital Hospital · Torrington, CT · CCN 070011

Merit-based Incentive Payment System (MIPS)

Final score: 84.1 of 100 (group)
Quality: 74.19
Improvement activities: 40
Cost: 73.55

Medicare participation

Medicare fee-for-service enrollment: Enrolled (2 enrollments) in CT, MT
Eligible to order & refer: Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment ID	State	Provider type	PAC ID	Details
I20100817001075	CT	Practitioner - Anesthesiology	6901930619	Reassigns benefits to 2 organizations
I20240627003149	MT	Practitioner - Anesthesiology	6901930619	Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD): Yes
Credentials: Doctor of Medicine

State licenses

License	State	Type	Specialty
038162	CT	MD	Anesthesiology Physician

Practice roles

Organization	Specialty	Status	New patients
Billings Cinic		Current since Jun 10, 2024	Accepting new patients
Billings Clinic		Current	Accepting new patients
Yale University		Current since Nov 1, 1999	Accepting new patients
Resource Anesthesiology Associates of CT PC	Anesthesiology	Current since Sep 15, 2021	Accepting new patients
Billings Clinic		Current since Jun 10, 2024	Accepting new patients
Yale University	Anesthesiology	Current since Nov 1, 1999	Accepting new patients
Yale University		Past	Accepting new patients

Locations

800 Howard Ave
New Haven, CT 06519
Phone (203) 785-2140

20 York St
Bldg 3RD
New Haven, CT 06510
Phone (203) 785-2802

300 George St
Fl 6
New Haven, CT 06511
Phone (203) 785-6610

540 Litchfield St
Torrington, CT 06790
Phone (860) 496-6361

539 Danbury Rd
Wilton, CT 06897
Phone (203) 834-7700

2800 10th Ave N
Billings, MT 59101
Phone (406) 248-3290

Specialties & licenses

Specialty (taxonomy)	Code	License	State	Primary
Anesthesiology Physician	207L00000X	038162	CT	Yes

Addresses

Primary practice location

20 York St
Ynhh Tompkins Building - 3Rd Floor
New Haven, CT 06510-3220

Mailing address

PO Box 9805
New Haven, CT 06536-0805

Other identifiers

Identifier	Type	State	Issuer
001381623	Medicaid	CT

Other providers in New Haven, CT

All providers in New Haven, CT · Anesthesiology Physician in Connecticut

Sources for this page

NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Record last updated by the provider on Jul 7, 2008. Information in NPPES is self-reported and not verified by CMS.
NUCC Health Care Provider Taxonomy: specialty names.
Medicare Fee-For-Service Public Provider Enrollment (CMS/PECOS): enrollments, PAC IDs and benefit reassignments.
Order and Referring (CMS).
Medicare Care Compare provider data (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.