DR. AUDUN JOACHIM LIER M.D., M.P.H.
NPI 1083077382
Internal Medicine - Infectious Disease in Northport, NY
About Dr. Audun Joachim Lier M.d., M.p.h. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AUDUN JOACHIM LIER M.D., M.P.H. (NPI 1083077382) is an individual infectious disease provider in Northport, New York, licensed in New York (310054-01) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, is affiliated with Suny/stony Brook University Hospital, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 3
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. Audun Joachim Lier M.d., M.p.h. 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 Audun Lier 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
- 261 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 2
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
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 11768 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Audun Lier's NPI number?
The NPI number for Audun Lier is 1083077382. It was assigned to this individual provider in the NPPES registry on April 4, 2016.
Where is Audun Lier located?
Audun Lier practices at 79 Middleville Rd Rm 111, Northport, NY 11768. The listed phone number is (631) 261-4400.
What is Audun Lier's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Audun Lier enrolled in Medicare?
Yes. Audun Lier 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 Audun Lier's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Audun Lier 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 Audun Lier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Audun Lier affiliated with any hospitals?
According to CMS data, Audun Lier is affiliated with Suny/Stony Brook University Hospital.
When was this NPI record last updated?
The NPPES record for Audun Lier was last updated on July 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Dr. Audun Joachim Lier, M.D., M.P.H. · NPI 1083077382
Infectious Disease physician in Northport, New York. Individual provider, active in the CMS NPPES registry since April 4, 2016.
## Identity
- **NPI:** 1083077382 (Entity type: Individual)
- **Enumerated:** April 4, 2016
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 310054-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 79 MIDDLEVILLE RD RM 111, Northport, NY 11768-2296
- **Phone:** (631) 261-4400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Stony Brook Internists, University Faculty Practice Corporation (NPI 1821035601, Stony Brook, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** July 8, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1083077382) · Data from the CMS NPPES public registry.