1. Home
  2. Directory
  3. California
  4. Torrance
  5. Internal Medicine
  6. NPI Profile

ACHIEVE MEDICAL GROUP
NPI 1376844043
Internal Medicine in Torrance, CA

Active since November 10, 2010CLIA 05D2018635 · Waiver
23000 CRENSHAW BLVD, SUITE 208, TORRANCE, CA 90505(310) 326-1147(310) 326-1148 Get Directions Write a Review

NPPES record last updated: February 1, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Achieve Medical Group NPPES

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

ACHIEVE MEDICAL GROUP (NPI 1376844043) is a healthcare organization registered as an internal medicine in Torrance, California and active in the NPI registry since November 2010. The organization holds a CLIA Waiver certificate valid through January 1, 2028 and lists Karen Eunkyung Oh, Dr/physician, as its authorized official.

NPPES Registry Identity

NPI1376844043
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameOH AND NEAL MEDICAL CORPORATION
Location Address23000 CRENSHAW BLVD, SUITE 208Torrance, CA 90505-3052
Mailing Address23000 Crenshaw Blvd, Suite 208Torrance, CA 90505-3052 · (310) 326-1147 · Fax (310) 326-1148
Phone(310) 326-1147
Fax(310) 326-1148
Organization SubpartNo
Authorized OfficialKaren Eunkyung OhDr/physician · (310) 326-1147
Enumeration DateNovember 10, 2010
Last NPPES UpdateFebruary 1, 2023
NPPES CertifiedJanuary 20, 2023
✔ NPI 1376844043 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
23000 CRENSHAW BLVD, Torrance, CA 90505
Open in Google Maps ↗

Other Names 1

Doing Business AsAchieve Medical Group

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Achieve Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Achieve Medical Group, which bills Medicare for the services this clinician delivers.

Clinician (1)

Karen Oh, D.O.
Internal Medicine
NPI 1902006588
23000 CRENSHAW BLVD. SUITE #208
Torrance, CA 90505
(310) 326-1147
✔ PECOS✔ Accepts MedicareSame address

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2018635

Achieve Medical Group · Torrance, CA
Active · expires Jan 1, 2028
CLIA Number05D2018635
Laboratory TypePhysician Office
Certificate Effective DateJanuary 2, 2026
Certificate Expiration DateJanuary 1, 2028
Laboratory DirectorKaren E. Oh
Laboratory Phone(310) 326-1147
Laboratory LocationAchieve Medical Group23000 Crenshaw Blvd Ste 208, Torrance, CA 90505
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Oh And Neal Medical Corporation's NPI number?

The NPI number for Oh And Neal Medical Corporation is 1376844043. It was assigned to this organization in the NPPES registry on November 10, 2010. The provider is doing business as Achieve Medical Group.

Where is Oh And Neal Medical Corporation located?

Oh And Neal Medical Corporation is located at 23000 Crenshaw Blvd Suite 208, Torrance, CA 90505. The listed phone number is (310) 326-1147.

What is Oh And Neal Medical Corporation's specialty?

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

Is Oh And Neal Medical Corporation enrolled in Medicare?

Yes. Oh And Neal Medical Corporation is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oh And Neal Medical Corporation?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Oh And Neal Medical Corporation. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Oh And Neal Medical Corporation hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2018635) is associated with this NPI, valid through January 1, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Oh And Neal Medical Corporation was last updated on February 1, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.