DR. DANIEL SANGWON OH M.D.
NPI 1932396611
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Irvine, CA

Q: What is Daniel Oh's NPI number?

The NPI number for Daniel Oh is 1932396611. It was assigned to this individual provider in the NPPES registry on September 26, 2007.

Q: What is Daniel Oh's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Q: When was this NPI record last updated?

The NPPES record for Daniel Oh was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since September 26, 2007PECOS EnrolledAccepts Medicare Assignment

1000 FIVEPOINT, IRVINE, CA 92618(949) 671-4673 Get Directions Write a Review

NPPES record last updated: September 18, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Sep 18, 2025, Oct 18, 2020, May 24, 2018 (3 updates tracked since 2018).

On this page

About Dr. Daniel Sangwon Oh M.d. NPPES

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

DR. DANIEL SANGWON OH M.D. (NPI 1932396611) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Irvine, California, licensed in California (A82679) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2001).

NPPES Registry Identity

NPI1932396611

Entity TypeIndividualMale

Primary Taxonomy208G00000X

Provider Legal NameDR. DANIEL SANGWON OHCredential: M.D.

Location Address1000 FIVEPOINTIrvine, CA 92618-2377

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(949) 671-4673

Sole ProprietorNo

Medical School CMSLoyola University Of Chicago, Stritch School Of MedicineGraduated 2001

Enumeration DateSeptember 26, 2007

Last NPPES UpdateSeptember 18, 20253 updates tracked since enumeration

NPPES CertifiedSeptember 18, 2025

✔ NPI 1932396611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians

Taxonomy Code208G00000X

License✔ Licensed in CA · A82679

Definition

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

1000 FIVEPOINT, Irvine, CA 92618

Open in Google Maps ↗

Secondary Practice Locations 2

Location 12151 N Harbor Blvd Ste 3100Fullerton, CA 92835-3825 · Phone (714) 446-5830 · Fax (714) 992-3037

Location 21500 Duarte RdDuarte, CA 91010-3012 · Phone (800) 826-4673

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. Daniel Sangwon Oh 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 ID7618009218

PECOS Enrollment IDI20100717000022

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

Medicare enrollment records show Daniel Oh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

City Of Hope Medical Foundation

36 mi

Hematology & Oncology

1500 DUARTE RD
Duarte, CA 91010

Reassigned Medicare billing, California enrollment
1,335 clinicians in this Medicare group

NPI 1871886366 (626) 256-4673

Usc Care Medical Group, Inc

39 mi

General Practice

1520 SAN PABLO ST
Los Angeles, CA 90033

Reassigned Medicare billing, California enrollment
2,445 clinicians in this Medicare group

NPI 1902846306 (323) 442-5955

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 3

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 straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

23 services18 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

19 services19 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.

16 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 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

$187.60 typical visit price

range $62.96 – $187.60

Typical copayment $46.90 (range $15.74 – $46.90)

Most-billed visit code 99205

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

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.

DR. ARNOLD KIM MD

Anesthesiology

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (888) 333-4673

DR. AMY RUTH COPELAND MD

Surgery (Surgical Oncology)

1000 FIVEPOINT, BLDG A
IRVINE, CA 92618

Orange County (949) 671-8000

MRS. AMBER HARDY RICKNER NP

Nurse Practitioner (Acute Care)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (949) 671-4673

CAROLYN THOMPSON CHUDY DO

Physical Medicine & Rehabilitation (Sports Medicine)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. NGOC N. LE

Radiology (Vascular & Interventional Radiology)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. ANNIE CHEN MD

Internal Medicine (Pulmonary Disease)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. HOSSEIN MEHDIKHANI KARIMABAD M.D.

Radiology (Diagnostic Radiology)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (847) 342-6842

DR. JUNG WOOK KIM MD

Internal Medicine (Pulmonary Disease)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (888) 333-4673

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 Daniel Oh's NPI number?

The NPI number for Daniel Oh is 1932396611. It was assigned to this individual provider in the NPPES registry on September 26, 2007.

Where is Daniel Oh located?

Daniel Oh practices at 1000 Fivepoint, Irvine, CA 92618. The listed phone number is (949) 671-4673.

What is Daniel Oh's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Daniel Oh enrolled in Medicare?

Yes. Daniel Oh 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 Daniel Oh's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Daniel Oh reassigns Medicare benefits to 2 organizations: City Of Hope Medical Foundation (Duarte, CA) and Usc Care Medical Group, Inc (Los Angeles, CA). 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 Daniel Oh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Daniel Oh was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.