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

MS. KAREN JENNIFER AHN M.S.
NPI 1396723532
Genetic Counselor, MS in Oakland, CA

Active since January 06, 2006
280 W MACARTHUR BLVD, GENETICS DEPARTMENT, OAKLAND, CA 94611(510) 752-5408 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Ms. Karen Jennifer Ahn M.s. NPPES

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

MS. KAREN JENNIFER AHN M.S. (NPI 1396723532) is an individual genetic counselor, ms provider in Oakland, California and active in the NPI registry since January 2006.

NPPES Registry Identity

NPI1396723532
Entity TypeIndividualFemale
Primary Taxonomy170300000X
Provider Legal NameMS. KAREN JENNIFER AHNCredential: M.S.
Location Address280 W MACARTHUR BLVD, GENETICS DEPARTMENTOakland, CA 94611-5642
Mailing Address280 W Macarthur Blvd, Genetics DepartmentOakland, CA 94611-5642 · (510) 752-5408
Phone(510) 752-5408
Sole ProprietorNo
Enumeration DateJanuary 6, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1396723532 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyGenetic Counselor, MSOther Service Providers
Taxonomy Code170300000X
Definition
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.
280 W MACARTHUR BLVD, Oakland, CA 94611
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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.

JESSICA CHANG PHARM.D., APH
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-8859
NORMA MIYEKO MARUBAYASHI HOLLOWAY PHARMD
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6468
DIANA HIROS CRNA
Nurse Anesthetist, Certified Registered
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6238
IVY I. YU MD
Obstetrics & Gynecology
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
THERESE M. HICKEY MD
Anesthesiology
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
JOHN L. JONES MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
ANNETTE CHENEVEY CRNA
Nurse Anesthetist, Certified Registered
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6238
MRS. MICHELE NG PHARM.D.
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6141

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 Ahn's NPI number?

The NPI number for Karen Ahn is 1396723532. It was assigned to this individual provider in the NPPES registry on January 6, 2006.

Where is Karen Ahn located?

Karen Ahn practices at 280 W Macarthur Blvd Genetics Department, Oakland, CA 94611. The listed phone number is (510) 752-5408.

What is Karen Ahn's specialty?

The primary specialty registered for this NPI is Genetic Counselor, MS with taxonomy code 170300000X.

When was this NPI record last updated?

The NPPES record for Karen Ahn was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 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.