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DR. NATHAN J HAHN M.D.
NPI 1124283114
Anesthesiology in Loves Park, IL

Active since July 19, 2008PECOS EnrolledAccepts Medicare Assignment
88.09/100
CMS Quality Rating
2202 HARLEM RD, SUITE 200, LOVES PARK, IL 61111(815) 877-4848(815) 654-5342 Get Directions Write a Review

NPPES record last updated: November 10, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Nathan J Hahn M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. NATHAN J HAHN M.D. (NPI 1124283114) is an individual anesthesiology provider in Loves Park, Illinois, licensed in Illinois (036-130010) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Northwest Health - Porter, and is a graduate of University Of Michigan Medical School (2008).

NPPES Registry Identity

NPI1124283114
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. NATHAN J HAHNCredential: M.D.
Location Address2202 HARLEM RD, SUITE 200Loves Park, IL 61111-2754
Mailing Address2202 Harlem Rd, Suite 200Loves Park, IL 61111-2754 · (815) 877-4848 · Fax (815) 654-5342
Phone(815) 877-4848
Fax(815) 654-5342
Sole ProprietorNo
Medical School CMSUniversity Of Michigan Medical SchoolGraduated 2008
Enumeration DateJuly 19, 2008
Last NPPES UpdateNovember 10, 2016
✔ NPI 1124283114 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in IL · 036-130010
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2202 HARLEM RD, Loves Park, IL 61111
Open in Google Maps ↗

Other Identifiers 2

Medicaid036130010IL
Medicare PIN610900002

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. Nathan J Hahn M.d. 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.

PECOS PAC ID2163678616
PECOS Enrollment IDI20250205000573
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Nathan Hahn reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rockford Anesthesiologists Associated, L.L.C.
Same address
Anesthesiology
2202 HARLEM RD
Loves Park, IL 61111
  • Reassigned Medicare billing, Illinois enrollment
  • Medicare enrollment name: Rockford Anesthesiologists Associated LLC
  • 32 clinicians in this Medicare group
NPI 1639128598 (815) 877-4848
Porter County Anesthesia Associates PC
118 mi
Anesthesiology
85 E US HIGHWAY 6
Valparaiso, IN 46383
  • Reassigned Medicare billing, Indiana enrollment
  • 55 clinicians in this Medicare group
NPI 1215974936 (219) 983-5743

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.

Northwest Health - Porter

Acute Care Hospitals · Valparaiso, IN
3/5 CMS rating
OwnershipProprietary
CMS Certification Number150035
Location85 East Us Hwy 6Valparaiso, IN 46383 · Porter County
Emergency services Birthing friendly

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.

88.09/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85
Improvement Activities40

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.

KATHLEEN M. SCHROEDER C.R.N.A.
Nurse Anesthetist, Certified Registered
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
DR. VINCENT J. QUINLAN M.D.
Anesthesiology
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
KELLY N. CARROLL CRNA
Nurse Anesthetist, Certified Registered
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
RITA K. BRAMLEY RN
Nurse Anesthetist, Certified Registered
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
DR. LENNEY G. KIZHAKEPUNNUR M.D.
Anesthesiology
2202 HARLEM RD, SUITE 200
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
DANIEL B CLAUNCH CRNA
Nurse Anesthetist, Certified Registered
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
DR. LISA P SOLOMON D.O.
Anesthesiology
2202 HARLEM RD, SUITE 200
LOVES PARK, IL 61111
Winnebago County (815) 877-4848
DR. STEVEN A. GUNDERSON D.O.
Anesthesiology
2202 HARLEM RD
LOVES PARK, IL 61111
Winnebago County (815) 877-4848

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 Nathan Hahn's NPI number?

The NPI number for Nathan Hahn is 1124283114. It was assigned to this individual provider in the NPPES registry on July 19, 2008.

Where is Nathan Hahn located?

Nathan Hahn practices at 2202 Harlem Rd Suite 200, Loves Park, IL 61111. The listed phone number is (815) 877-4848.

What is Nathan Hahn's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Nathan Hahn enrolled in Medicare?

Yes. Nathan Hahn 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 Nathan Hahn's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Hahn reassigns Medicare benefits to 2 organizations: Rockford Anesthesiologists Associated, L.L.C. (Loves Park, IL) and Porter County Anesthesia Associates PC (Valparaiso, IN). 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 Nathan Hahn's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Nathan Hahn affiliated with any hospitals?

According to CMS data, Nathan Hahn is affiliated with Northwest Health - Porter.

When was this NPI record last updated?

The NPPES record for Nathan Hahn was last updated on November 10, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.