KIM C MACKEY MD
NPI 1285603431
Obstetrics & Gynecology in Marshfield, WI

Active since March 17, 2006PECOS EnrolledAccepts Medicare Assignment
1000 N OAK AVE, MARSHFIELD, WI 54449(715) 387-5511 Get Directions Write a Review

NPPES record last updated: May 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 29, 2026, Apr 16, 2026, Feb 1, 2021 and 2 more (5 updates tracked since 2020).

About Kim C Mackey Md NPPES

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

KIM C MACKEY MD (NPI 1285603431) is an individual obstetrics & gynecology provider in Marshfield, Wisconsin, licensed in Wisconsin (43887) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1995).

NPPES Registry Identity

NPI1285603431
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameKIM C MACKEYCredential: MD
Location Address1000 N OAK AVEMarshfield, WI 54449-5703
Mailing Address1700 Tuttle StBaraboo, WI 53913-3319 · (608) 355-3800 · Fax (608) 355-7001
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateMarch 17, 2006
Last NPPES UpdateMay 29, 20265 updates tracked since enumeration
NPPES CertifiedMay 29, 2026
✔ NPI 1285603431 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in WI · 43887✔ Licensed in FL · ME180291✔ Licensed in WA · MD61604924
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedHospitalistTaxonomy 208M00000X · License MD61604924 (WA)
1000 N OAK AVE, Marshfield, WI 54449

Secondary Practice Locations 2

Location 122 Roulston RdWindham, NH 03087-1209 · Phone (608) 575-4519
Location 2400 S 43rd StRenton, WA 98055-5714 · Phone (425) 690-1000

Other Identifiers 2

Medicaid1285603431WI
Medicaid2298975WA

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

Kim C Mackey 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.

PECOS PAC ID4981598604
PECOS Enrollment IDI20241010004178, I20250430000312, I20251029003127
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

18

Medicare enrollment records show Kim Mackey reassigns Medicare billing to 18 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
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
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
Clinic/Center
806 2ND ST
Chetek, WI 54728
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,616 clinicians in this Medicare group
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
Family Medicine
180 GATEWAY DR
Waupun, WI 53963
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,447 clinicians in this Medicare group
Allergy & Immunology
1211 FISH HATCHERY RD
Madison, WI 53715
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,377 clinicians in this Medicare group
Optometrist
1509 IHM ST
Lancaster, WI 53813
  • Reassigned Medicare billing, Wisconsin enrollment
  • 175 clinicians in this Medicare group
Internal Medicine
W180N8000 TOWN HALL RD
Menomonee Falls, WI 53051
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,294 clinicians in this Medicare group
Multi-Specialty
16830 198TH AVE NW, CENTRACARE CLINIC - BIG LAKE
Big Lake, MN 55309
  • Reassigned Medicare billing, Minnesota enrollment
  • 1,051 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 4

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
37 services27 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
35 services24 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
23 services23 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.69 typical visit price
range $53.90 – $163.24
Typical copayment $30.92 (range $13.47 – $40.81)
Most-billed visit code 99204
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Obstetrics & Gynecology
1000 N OAK AVE
MARSHFIELD, WI 54449
Nurse Practitioner
1000 N OAK AVE
MARSHFIELD, WI 54449
Dietitian, Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Student in an Organized Health Care Education/Training Program
1000 N OAK AVE
MARSHFIELD, WI 54449
Physician Assistant
1000 N OAK AVE
MARSHFIELD, WI 54449
Nurse Anesthetist, Certified Registered
1000 N OAK AVE
MARSHFIELD, WI 54449
Internal Medicine
1000 N OAK AVE
MARSHFIELD, WI 54449
Radiology (Vascular & Interventional Radiology)
1000 N OAK AVE
MARSHFIELD, WI 54449

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 Kim Mackey's NPI number?

The NPI number for Kim Mackey is 1285603431. It was assigned to this individual provider in the NPPES registry on March 17, 2006.

Where is Kim Mackey located?

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

What is Kim Mackey's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Kim Mackey enrolled in Medicare?

Yes. Kim Mackey 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 Kim Mackey's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kim Mackey reassigns Medicare benefits to 18 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 13 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 Kim Mackey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Kim Mackey accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, CareSource, CareSource (Common Ground Healthcare) and Dean Health Plan and 5 other insurers list Kim Mackey 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 Kim Mackey was last updated on May 29, 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.