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

CARYN LUM MD
NPI 1497738884
Internal Medicine - Pulmonary Disease in Oakland, CA

Q: What is Caryn Lum's NPI number?

The NPI number for Caryn Lum is 1497738884. It was assigned to this individual provider in the NPPES registry on November 21, 2005.

Q: What is Caryn Lum's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Caryn Lum 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 45 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.

Active since November 21, 2005

2221 MLK JR WAY, OAKLAND, CA 94612(510) 267-7801 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Caryn Lum Md NPPES

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

CARYN LUM MD (NPI 1497738884) is an individual pulmonary disease provider in Oakland, California, licensed in California (G53574) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1497738884

Entity TypeIndividualFemale

Primary Taxonomy207RP1001X

Provider Legal NameCARYN LUMCredential: MD

Location Address2221 MLK JR WAYOakland, CA 94612-1318

Mailing Address2221 Mlk Jr WayOakland, CA 94612-1318

Phone(510) 267-7801

Sole ProprietorNo

Enumeration DateNovember 21, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1497738884 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in CA · G53574

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

2221 MLK JR WAY, Oakland, CA 94612

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Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MOLLY HACKER RN

Registered Nurse

2221 MLK JR WAY
OAKLAND, CA 94612

Alameda County (510) 301-5594

ALEXIS LUDI

Internal Medicine

2221 MLK JR WAY
OAKLAND, CA 94612

Alameda County (510) 267-7800

MRS. RUTH HOM KNITTEL R.D.

Dietitian, Registered

2221 MLK JR WAY
OAKLAND, CA 94612

Alameda County (510) 267-7921

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 Caryn Lum's NPI number?

The NPI number for Caryn Lum is 1497738884. It was assigned to this individual provider in the NPPES registry on November 21, 2005.

Where is Caryn Lum located?

Caryn Lum practices at 2221 Mlk Jr Way, Oakland, CA 94612. The listed phone number is (510) 267-7801.

What is Caryn Lum's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

When was this NPI record last updated?

The NPPES record for Caryn Lum 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 45 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.