Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SI YUAN KHOR MD
NPI 1174133615
Internal Medicine - Nephrology in Tulsa, OK

Q: What is Si Yuan Khor's NPI number?

The NPI number for Si Yuan Khor is 1174133615. It was assigned to this individual provider in the NPPES registry on August 7, 2020.

Q: What is Si Yuan Khor's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Si Yuan Khor was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.

Active since August 07, 2020PECOS Enrolled

6465 S YALE AVE STE 804, TULSA, OK 74136(918) 502-3555 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 27, 2026, Jul 11, 2025, Aug 12, 2020 and 1 more (4 updates tracked since 2020).

On this page

About Si Yuan Khor Md NPPES

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

SI YUAN KHOR MD (NPI 1174133615) is an individual nephrology provider in Tulsa, Oklahoma, licensed in Oklahoma (46585) and active in the NPI registry since August 2020. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1174133615

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameSI YUAN KHORCredential: MD

Location Address6465 S YALE AVE STE 804Tulsa, OK 74136-7810

Mailing Address4640 S Aspen Ave Apt 3311Broken Arrow, OK 74011-2164 · (918) 494-2200

Phone(918) 502-3555

Sole ProprietorNo

Enumeration DateAugust 7, 2020

Last NPPES UpdateJuly 27, 20264 updates tracked since enumeration

NPPES CertifiedJuly 27, 2026

✔ NPI 1174133615 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

Licenses✔ Licensed in OK · 46585✔ Licensed in MN · 79234

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Also ListedInternal MedicineTaxonomy 207R00000X · License 4351046215 (MI)

6465 S YALE AVE STE 804, Tulsa, OK 74136

Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Si Yuan Khor Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74136 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

$123.06 typical visit price

range $53.00 – $162.61

Typical copayment $30.76 (range $13.25 – $40.65)

Most-billed visit code 99204

Established Patient

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

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.

Other Providers at the Same Location NPPES 7

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MARY KATHERINE RANCHHOD APRN - CNP

Nurse Practitioner (Acute Care)