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

KAREN LO
NPI 1275228876
Internal Medicine in Anaheim, CA

Active since April 10, 2023
3440 E LA PALMA AVE, ANAHEIM, CA 92806(833) 574-2273 Get Directions Write a Review

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

Record update history: Sep 16, 2026, Apr 10, 2023 (2 updates tracked since 2023).

About Karen Lo NPPES

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

KAREN LO (NPI 1275228876) is an individual internal medicine provider in Anaheim, California, licensed in California (A198455) and active in the NPI registry since April 2023.

NPPES Registry Identity

NPI1275228876
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameKAREN LO
Location Address3440 E LA PALMA AVEAnaheim, CA 92806-2020
Mailing Address3440 E La Palma AveAnaheim, CA 92806-2020
Sole ProprietorYes
Enumeration DateApril 10, 2023
Last NPPES UpdateSeptember 16, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 16, 2026
✔ NPI 1275228876 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A198455
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.
3440 E LA PALMA AVE, Anaheim, CA 92806

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.

Pathology (Anatomic Pathology & Clinical Pathology)
3440 E LA PALMA AVE, KAISER ANAHEIM, DEPT OF PATHOLOGY
ANAHEIM, CA 92806
Technician, Other
3440 E LA PALMA AVE
ANAHEIM, CA 92806
Respiratory Therapist, Registered
3440 E LA PALMA AVE
ANAHEIM, CA 92806
Nurse Anesthetist, Certified Registered
3440 E LA PALMA AVE
ANAHEIM, CA 92806
Radiology (Diagnostic Radiology)
3440 E LA PALMA AVE, AMC DEPARTMENT OF RADIOLOGY
ANAHEIM, CA 92806
Dietitian, Registered
3440 E LA PALMA AVE
ANAHEIM, CA 92806
Technician, Other
3440 E LA PALMA AVE
ANAHEIM, CA 92806
Nurse Practitioner
3440 E LA PALMA AVE
ANAHEIM, CA 92806

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 Karen Lo's NPI number?

The NPI number for Karen Lo is 1275228876. It was assigned to this individual provider in the NPPES registry on April 10, 2023.

Where is Karen Lo located?

Karen Lo practices at 3440 E La Palma Ave, Anaheim, CA 92806. The listed phone number is (833) 574-2273.

What is Karen Lo's specialty?

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

When was this NPI record last updated?

The NPPES record for Karen Lo was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.