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OANH NGUYEN CLARK DO
NPI 1811104938
Emergency Medicine - Hospice and Palliative Medicine in Columbus, OH

Active since May 17, 2007PECOS EnrolledAccepts Medicare Assignment
5156 BAKER RIDGE DR, COLUMBUS, OH 43228(614) 851-1937 Get Directions Write a Review

NPPES record last updated: February 11, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Oanh Nguyen Clark Do NPPES

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

OANH NGUYEN CLARK DO (NPI 1811104938) is an individual hospice and palliative medicine provider in Columbus, Ohio, licensed in Ohio (9000) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2004).

NPPES Registry Identity

NPI1811104938
Entity TypeIndividualFemale
Primary Taxonomy207PH0002X
Provider Legal NameOANH NGUYEN CLARKCredential: DO
Location Address5156 BAKER RIDGE DRColumbus, OH 43228-1794
Mailing Address5156 Baker Ridge DrColumbus, OH 43228-1794 · (614) 851-1937
Phone(614) 851-1937
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateMay 17, 2007
Last NPPES UpdateFebruary 11, 2022
✔ NPI 1811104938 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207PH0002X
License✔ Licensed in OH · 9000
Definition
An emergency medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
5156 BAKER RIDGE DR, Columbus, OH 43228
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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

Oanh Nguyen Clark Do 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 ID9739277815
PECOS Enrollment IDI20081220000128
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 Oanh Clark reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc
2,043 mi
Internal Medicine
7373 WEST LANE
Stockton, CA 95210
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1548343510 (209) 476-2000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 43228 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
$84.72 typical visit price
range $54.34 – $166.65
Typical copayment $21.18 (range $13.58 – $41.66)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.10 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

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 Oanh Clark's NPI number?

The NPI number for Oanh Clark is 1811104938. It was assigned to this individual provider in the NPPES registry on May 17, 2007.

Where is Oanh Clark located?

Oanh Clark practices at 5156 Baker Ridge Dr, Columbus, OH 43228. The listed phone number is (614) 851-1937.

What is Oanh Clark's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207PH0002X.

Is Oanh Clark enrolled in Medicare?

Yes. Oanh Clark 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 Oanh Clark's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Oanh Clark reassigns Medicare benefits to Permanente Medical Group Inc (Stockton, CA). 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 Oanh Clark'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 Oanh Clark was last updated on February 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.