IVAN LESYUK MD/DO
NPI 1790978484
Anesthesiology in Lawrence, MA
About Ivan Lesyuk Md/do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IVAN LESYUK MD/DO (NPI 1790978484) is an individual anesthesiology provider in Lawrence, Massachusetts, licensed in Massachusetts (247311) and active in the NPI registry since August 2007. He is enrolled in Medicare PECOS, is affiliated with Lawrence General Hospital, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
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
Ivan Lesyuk Md/do 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
7Medicare enrollment records show Ivan Lesyuk reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lowell, MA 01854
- Reassigned Medicare billing, Massachusetts enrollment
- 123 clinicians in this Medicare group
Lowell, MA 01851
- Reassigned Medicare billing, Massachusetts enrollment
- Medicare enrollment name: Integrated Gastroenterology Consultants, P.C.
- 70 clinicians in this Medicare group
Lowell, MA 01851
- Reassigned Medicare billing, Massachusetts enrollment
- 60 clinicians in this Medicare group
Stoneham, MA 02180
- Reassigned Medicare billing, Massachusetts enrollment
- Also billed through NPI 1730113325 (Massachusetts)
- 65 clinicians in this Medicare group
Acton, MA 01720
- Reassigned Medicare billing, Massachusetts enrollment
- 125 clinicians in this Medicare group
Concord, MA 01742
- Reassigned Medicare billing, Massachusetts enrollment
- 72 clinicians in this Medicare group
Fall River, MA 02720
- Reassigned Medicare billing, Massachusetts enrollment
- 192 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 3
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.
Lawrence General Hospital
Acute Care Hospitals · Lawrence, MAHoly Family Hospital
Acute Care Hospitals · Methuen, MAOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAWRENCE, MA 01841
LAWRENCE, MA 01841
LAWRENCE, MA 01841
LAWRENCE, MA 01841
LAWRENCE, MA 01841
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 Ivan Lesyuk's NPI number?
The NPI number for Ivan Lesyuk is 1790978484. It was assigned to this individual provider in the NPPES registry on August 25, 2007.
Where is Ivan Lesyuk located?
Ivan Lesyuk practices at 1 General St, Lawrence, MA 01841. The listed phone number is (978) 683-4000.
What is Ivan Lesyuk's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Ivan Lesyuk enrolled in Medicare?
Yes. Ivan Lesyuk 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 Ivan Lesyuk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ivan Lesyuk reassigns Medicare benefits to 7 organizations: Lowell Anesthesiology Service, Inc. (Lowell, MA), Integrated Gastroenterology Consultants, PC (Lowell, MA), Lowell Anesthesia Associates PLLC (Lowell, MA), Dha Endoscopy LLC (Stoneham, MA), Gbaa Holdings, PLLC (Acton, MA) and 2 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 Ivan Lesyuk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ivan Lesyuk accept?
Health plans from Taro Health list Ivan Lesyuk 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 Ivan Lesyuk affiliated with any hospitals?
According to CMS data, Ivan Lesyuk is affiliated with Lawrence General Hospital and Holy Family Hospital.
When was this NPI record last updated?
The NPPES record for Ivan Lesyuk was last updated on June 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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.
# Ivan Lesyuk, MD/DO · NPI 1790978484
Anesthesiology physician in Lawrence, Massachusetts. Individual provider, active in the CMS NPPES registry since August 25, 2007.
## Identity
- **NPI:** 1790978484 (Entity type: Individual)
- **Enumerated:** August 25, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 247311 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 GENERAL ST, Lawrence, MA 01841-2961
- **Phone:** (978) 683-4000
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Lowell Anesthesiology Service, Inc. (NPI 1114927282, Lowell, MA); Integrated Gastroenterology Consultants, PC (NPI 1477553287, Lowell, MA); Lowell Anesthesia Associates PLLC (NPI 1063938934, Lowell, MA); Dha Endoscopy LLC (NPI 1851921555, Stoneham, MA); Gbaa Holdings, PLLC (NPI 1790299592, Acton, MA); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** June 3, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1790978484) · Data from the CMS NPPES public registry.