IAN NIGEL MONK MD
NPI 1790247492
Internal Medicine - Gastroenterology in Janesville, WI
About Ian Nigel Monk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IAN NIGEL MONK MD (NPI 1790247492) is an individual gastroenterology provider in Janesville, Wisconsin, licensed in Wisconsin (87998-20) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and maintains a secondary practice location in Rockford.
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
Ian Nigel Monk 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 Reassignment
Medicare enrollment records show Ian Monk reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Stony Brook, NY 11794
- Reassigned Medicare billing, New York enrollment
- 44 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Suny/Stony Brook University Hospital
Acute Care Hospitals · Stony Brook, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53548 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.
JANESVILLE, WI 53548
JANESVILLE, WI 53548
JANESVILLE, WI 53548
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 Ian Monk's NPI number?
The NPI number for Ian Monk is 1790247492. It was assigned to this individual provider in the NPPES registry on April 2, 2019.
Where is Ian Monk located?
Ian Monk practices at 1000 Mineral Point Ave, Janesville, WI 53548. The listed phone number is (608) 756-6807.
What is Ian Monk's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Ian Monk enrolled in Medicare?
Yes. Ian Monk 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 organization bills Medicare for Ian Monk's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ian Monk reassigns Medicare benefits to Stony Brook Internists, University Faculty Practice Corporation (Stony Brook, NY). The 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 Ian Monk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ian Monk accept?
Health plans from Anthem Blue Cross and Blue Shield, MercyCare and MercyCare Health Plans list Ian Monk 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 Ian Monk affiliated with any hospitals?
According to CMS data, Ian Monk is affiliated with Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Ian Monk was last updated on August 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Ian Nigel Monk, MD · NPI 1790247492
Gastroenterology physician in Janesville, Wisconsin. Individual provider, active in the CMS NPPES registry since April 2, 2019.
## Identity
- **NPI:** 1790247492 (Entity type: Individual)
- **Enumerated:** April 2, 2019
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 87998-20 (Wisconsin)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 MINERAL POINT AVE, Janesville, WI 53548-2982
- **Phone:** (608) 756-6807
## 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:** Stony Brook Internists, University Faculty Practice Corporation (NPI 1265471809, Stony Brook, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wayne State University School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** August 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1790247492) · Data from the CMS NPPES public registry.