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WOIHWAN KIM MD
NPI 1427589845
Colon & Rectal Surgery in Katy, TX

Active since March 27, 2017PECOS EnrolledAccepts Medicare Assignment
23920 KATY FWY STE 580, KATY, TX 77494(713) 486-4730(281) 395-5054 Get Directions Write a Review

NPPES record last updated: August 30, 2024. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jul 2, 2024, Feb 22, 2023, Mar 27, 2017 (3 updates tracked since 2017).

About Woihwan Kim Md NPPES

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

WOIHWAN KIM MD (NPI 1427589845) is an individual colon & rectal surgery provider in Katy, Texas, licensed in Texas (V0002) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS, is affiliated with Memorial Hermann Memorial City Hospital, and is a graduate of University Of Louisville School Of Medicine (2017).

NPPES Registry Identity

NPI1427589845
Entity TypeIndividualMale
Primary Taxonomy208C00000X
Provider Legal NameWOIHWAN KIMCredential: MD
Location Address23920 KATY FWY STE 580Katy, TX 77494-0883
Mailing Address23920 Katy Fwy Ste 580Katy, TX 77494-0883 · (713) 486-4730 · Fax (281) 395-5054
Phone(713) 486-4730
Fax(281) 395-5054
Sole ProprietorNo
Medical School CMSUniversity Of Louisville School Of MedicineGraduated 2017
Enumeration DateMarch 27, 2017
Last NPPES UpdateAugust 30, 20243 updates tracked since enumeration
NPPES CertifiedAugust 30, 2024
✔ NPI 1427589845 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyColon & Rectal SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208C00000X
License✔ Licensed in TX · V0002
Definition
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
23920 KATY FWY STE 580, Katy, TX 77494
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.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

Woihwan Kim 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 ID1951648443
PECOS Enrollment IDI20240905001139
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 Reassignment

Medicare enrollment records show Woihwan Kim reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ut Physicians
24 mi
Anesthesiology
6410 FANNIN ST, 1500
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 3,111 clinicians in this Medicare group
NPI 1033157821 (832) 325-7325

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 3

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

Memorial Hermann Memorial City Hospital

Acute Care Hospitals · Houston, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450610
Location921 GessnerHouston, TX 77024 · Harris County
Emergency services Birthing friendly

Memorial Hermann Katy Hospital

Acute Care Hospitals · Katy, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450847
Location23900 Katy FreewayKaty, TX 77494 · Fort Bend County
Emergency services Birthing friendly

Memorial Hermann Sugar Land Hospital

Acute Care Hospitals · Sugar Land, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450848
Location17500 W Grand Parkway SouthSugar Land, TX 77479 · Fort Bend County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77494 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
$84.92 typical visit price
range $54.84 – $166.88
Typical copayment $21.23 (range $13.71 – $41.72)
Most-billed visit code 99203
Established Patient
$68.55 typical visit price
range $17.52 – $136.11
Typical copayment $17.13 (range $4.38 – $34.02)
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.

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 Woihwan Kim's NPI number?

The NPI number for Woihwan Kim is 1427589845. It was assigned to this individual provider in the NPPES registry on March 27, 2017.

Where is Woihwan Kim located?

Woihwan Kim practices at 23920 Katy Fwy Ste 580, Katy, TX 77494. The listed phone number is (713) 486-4730.

What is Woihwan Kim's specialty?

The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.

Is Woihwan Kim enrolled in Medicare?

Yes. Woihwan Kim 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 Woihwan Kim's services?

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

What insurance does Woihwan Kim accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 5 other insurers list Woihwan Kim 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 Woihwan Kim affiliated with any hospitals?

According to CMS data, Woihwan Kim is affiliated with Memorial Hermann Memorial City Hospital, Memorial Hermann Katy Hospital and Memorial Hermann Sugar Land Hospital.

When was this NPI record last updated?

The NPPES record for Woihwan Kim was last updated on August 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.