1. Home
  2. Directory
  3. Wisconsin
  4. Eau Claire
  5. Internal Medicine
  6. NPI Profile

HUMAYUN A KHAN MD
NPI 1982705505
Internal Medicine in Eau Claire, WI

Active since September 26, 2006PECOS EnrolledAccepts Medicare Assignment
78.85/100
CMS Quality Rating
733 W CLAIREMONT AVE, EAU CLAIRE, WI 54701(715) 838-5222 Get Directions Write a Review

NPPES record last updated: August 25, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Humayun A Khan Md NPPES

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

HUMAYUN A KHAN MD (NPI 1982705505) is an individual internal medicine provider in Eau Claire, Wisconsin, licensed in Wisconsin (34238) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Marshfield Medical Center, and maintains a secondary practice location in Eau Claire.

NPPES Registry Identity

NPI1982705505
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameHUMAYUN A KHANCredential: MD
Location Address733 W CLAIREMONT AVEEau Claire, WI 54701-6101
Mailing AddressPo Box 860912Minneapolis, MN 55486-0912 · (715) 838-5222
Phone(715) 838-5222
Sole ProprietorNo
Medical School CMSOtherGraduated 1986
Enumeration DateSeptember 26, 2006
Last NPPES UpdateAugust 25, 2026
NPPES CertifiedAugust 25, 2026
✔ NPI 1982705505 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in WI · 34238
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedEmergency MedicineTaxonomy 207P00000X · License 34238 (WI)
733 W CLAIREMONT AVE, Eau Claire, WI 54701
Open in Google Maps ↗

Secondary Practice Location 1

Location 12116 Craig RoadEau Claire, WI 54701 · Phone (715) 858-4700

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Sanford Health Plan, Security 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

Humayun A Khan 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 ID3476610593
PECOS Enrollment IDI20100323000488
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

3

Medicare enrollment records show Humayun Khan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mayo Clinic Health System-Northwest Wisconsin Region, Inc.
Same address
Multi-Specialty
733 W CLAIREMONT AVE
Eau Claire, WI 54701
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,248 clinicians in this Medicare group
NPI 1235588831 (715) 838-5222
Mchs Hospitals Inc
0.6 mi
Clinic/Center
2310 CRAIG RD
Eau Claire, WI 54701
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,476 clinicians in this Medicare group
NPI 1316416035 (715) 858-8100
Marshfield Clinic Inc
66 mi
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

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 7

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
186 services59 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
154 services58 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
86 services83 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
46 services45 patients
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016
An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.
43 services43 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
40 services15 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Marshfield Medical Center

Acute Care Hospitals · Marshfield, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520037
Location611 St Joseph AveMarshfield, WI 54449 · Wood County
Emergency services Birthing friendly

Marshfield Medical Center - Eau Claire

Acute Care Hospitals · Eau Claire, WI
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520210
Location2310 Craig RdEau Claire, WI 54701 · Eau Claire County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54701 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
$95.41 typical visit price
range $17.40 – $133.76
Typical copayment $23.85 (range $4.35 – $33.44)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

78.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality66.68
Promoting Interoperability99
Improvement Activities40
Cost54.87

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Wheelchair accessory, manual swingaway, retractable or removable mounting hardware for joystick, other control interface or positioning accessory E1028
DME-Wheelchairs · category DD021N
1 supplier12 claims12 services$9.87 avg. paid by Medicare
Power wheelchair, group 2 standard, captains chair, patient weight capacity up to and including 300 pounds K0823
DME-Wheelchairs · category DD009N
1 supplier12 claims12 services$148.91 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

KRISTI K FECIK PHARM D
Pharmacist
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5000
HOPE C. ST JEAN CNP
Nurse Practitioner
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-3311
ANDREW E FLOREN MD
Preventive Medicine (Occupational Medicine)
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5222
NAMRATA MEHTA MD
Family Medicine
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5222
NOEL ELIZABETH KROEPLIN PA-C
Physician Assistant
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5222
MAYO CLINIC HEALTH SYSTEM - PHARMACY & HOME MEDICAL, INC
Durable Medical Equipment & Medical Supplies
733 W CLAIREMONT AVE, SUITE PHM # 1
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5000
MARK ALAN SWANSON APRN-FNP
Nurse Practitioner
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5222
JEFFREY J GROSHENS MD
Family Medicine
733 W CLAIREMONT AVE
EAU CLAIRE, WI 54701
Eau Claire County (715) 838-5222

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 Humayun Khan's NPI number?

The NPI number for Humayun Khan is 1982705505. It was assigned to this individual provider in the NPPES registry on September 26, 2006.

Where is Humayun Khan located?

Humayun Khan practices at 733 W Clairemont Ave, Eau Claire, WI 54701. The listed phone number is (715) 838-5222.

What is Humayun Khan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Humayun Khan enrolled in Medicare?

Yes. Humayun Khan 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 Humayun Khan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Humayun Khan reassigns Medicare benefits to 3 organizations: Mayo Clinic Health System-Northwest Wisconsin Region, Inc. (Eau Claire, WI), Mchs Hospitals Inc (Eau Claire, WI) and Marshfield Clinic Inc (Marshfield, WI). 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 Humayun Khan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Humayun Khan accept?

Health plans from Anthem Blue Cross and Blue Shield, Sanford Health Plan and Security Health Plan list Humayun Khan 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 Humayun Khan affiliated with any hospitals?

According to CMS data, Humayun Khan is affiliated with Marshfield Medical Center and Marshfield Medical Center - Eau Claire.

When was this NPI record last updated?

The NPPES record for Humayun Khan was last updated on August 25, 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.