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DR. HEATHER L KUDUK M.D.
NPI 1649582727
Anesthesiology in Marshfield, WI

Active since July 06, 2010PECOS EnrolledAccepts Medicare Assignment
88.97/100
CMS Quality Rating
1000 N OAK AVE, MARSHFIELD, WI 54449(715) 387-5511 Get Directions Write a Review

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

Record update history: Oct 12, 2023, Mar 17, 2018, Nov 6, 2017 (3 updates tracked since 2017).

About Dr. Heather L Kuduk M.d. NPPES

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

DR. HEATHER L KUDUK M.D. (NPI 1649582727) is an individual anesthesiology provider in Marshfield, Wisconsin, licensed in Wisconsin (68173) and active in the NPI registry since July 2010. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Southern Illinois University School Of Medicine (2010).

NPPES Registry Identity

NPI1649582727
Entity TypeIndividualFemale
Primary Taxonomy207L00000X
Provider Legal NameDR. HEATHER L KUDUKCredential: M.D.
Location Address1000 N OAK AVEMarshfield, WI 54449-5703
Mailing Address900 Illinois AveStevens Point, WI 54481-3114 · (715) 346-5000
Phone(715) 387-5511
Sole ProprietorNo
Medical School CMSSouthern Illinois University School Of MedicineGraduated 2010
Enumeration DateJuly 6, 2010
Last NPPES UpdateJune 10, 20263 updates tracked since enumeration
NPPES CertifiedJune 10, 2026
✔ NPI 1649582727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in WI · 68173✔ Licensed in WI · 68173-20✔ Licensed in IL · 036.135293
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.
1000 N OAK AVE, Marshfield, WI 54449
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Other Names 1

Former Name (1)Dr. Heather L Gray Md

Secondary Practice Locations 2

Location 18600 State Route 91 Ste 250Peoria, IL 61615-7831 · Phone (309) 692-5393
Location 2900 Illinois AveStevens Point, WI 54481-3114 · Phone (715) 346-5000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.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

Dr. Heather L Kuduk 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 ID4486871621
PECOS Enrollment IDI20171128000819
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

7

Medicare enrollment records show Heather Kuduk reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Marshfield Clinic Inc
Same address
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
NPI 1952347981 (715) 387-5511
Mchs Hospitals Inc
Same address
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1952890873 (Wisconsin)
  • 2,476 clinicians in this Medicare group
NPI 1093221434 (715) 387-5511
Memorial Hospital, Inc
22 mi
Clinical Medical Laboratory
216 SUNSET PL, MEMORIAL HOSPITAL, INC
Neillsville, WI 54456
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1346239373 (Wisconsin)
  • 1,283 clinicians in this Medicare group
NPI 1679746747 (715) 743-3101
Lakeview Medical Center Inc Of Rice Lake
85 mi
Clinic/Center
806 2ND ST
Chetek, WI 54728
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,616 clinicians in this Medicare group
NPI 1659008605 (715) 924-2000
Flambeau Hospital Inc
89 mi
Clinic/Center
98 SHERRY AVE
Park Falls, WI 54552
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1700963048 (Wisconsin)
  • 1,351 clinicians in this Medicare group
NPI 1194317966 (715) 762-2484
Beaver Dam Community Hospitals Inc
102 mi
Family Medicine
180 GATEWAY DR
Waupun, WI 53963
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,447 clinicians in this Medicare group
NPI 1629374780 (920) 345-1306
Osms Anesthesia LLC
110 mi
Anesthesiology
2223 LIME KILN RD STE 1
Green Bay, WI 54311
  • Reassigned Medicare billing, Wisconsin enrollment
  • 43 clinicians in this Medicare group
NPI 1447017983 (920) 430-8113

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 6

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.

Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
46 services36 patients
Anesthesia for procedure for total knee joint replacement 01402
Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.
32 services32 patients
Anesthesia for total hip replacement 01214
Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.
19 services19 patients
Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415
This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.
17 services17 patients
Anesthesia for other procedure or exam of knee joint using an endoscope 01400
Anesthesia for a knee joint procedure or exam using an endoscope involves administering medication to numb the area or put you in a sleep-like state. This ensures you don't feel pain during the procedure. The endoscope, a thin tube with a camera, allows the doctor to view the knee joint internally without making large incisions.
16 services16 patients
Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 01810
Anesthesia for procedures on the forearm, wrist, and hand involves administering medication to block sensation in these areas. This helps ensure comfort and painlessness during surgeries or treatments involving nerves, muscles, tendons, and tissue in these regions.
14 services13 patients

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.

88.97/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality85.89
Promoting Interoperability100
Improvement Activities40
Cost69.92

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.

ALISON RAE SAMPSON D.O.
Obstetrics & Gynecology
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5161
TAMARA L. LEAHY NP
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (800) 782-8581
SAMANTHA ELAINE MOORE RD, CD, CDCES
Dietitian, Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-7464
ROBERT BUNDY
Student in an Organized Health Care Education/Training Program
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5511
EUGENE H. LARSON PA
Physician Assistant
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5245
JAMES SKIBBA CRNA
Nurse Anesthetist, Certified Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-7179
KENNETH E ENGELHART MD
Internal Medicine
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 387-5704
KRISTIN M GERNDT MD
Radiology (Vascular & Interventional Radiology)
1000 N OAK AVE
MARSHFIELD, WI 54449
Wood County (715) 389-3474

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 Heather Kuduk's NPI number?

The NPI number for Heather Kuduk is 1649582727. It was assigned to this individual provider in the NPPES registry on July 6, 2010. The provider is also known as Dr. Heather L Gray MD.

Where is Heather Kuduk located?

Heather Kuduk practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-5511.

What is Heather Kuduk's specialty?

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

Is Heather Kuduk enrolled in Medicare?

Yes. Heather Kuduk 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 Heather Kuduk's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Heather Kuduk reassigns Medicare benefits to 7 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI), Flambeau Hospital Inc (Park Falls, WI) 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 Heather Kuduk's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Heather Kuduk accept?

Health plans from Sanford Health Plan list Heather Kuduk 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.

When was this NPI record last updated?

The NPPES record for Heather Kuduk was last updated on June 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.