REESE PRESCOTT ISAACSON - NPI 1154765998 - Internal Medicine in San Pedro, CA

Q: What is Reese Isaacson's NPI number?

The NPI number for Reese Isaacson is 1154765998. It was assigned to this individual provider in the NPPES registry on April 23, 2013.

Q: What is Reese Isaacson's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Reese Isaacson was last updated on July 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 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.

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About Reese Prescott Isaacson NPPES

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

REESE PRESCOTT ISAACSON (NPI 1154765998) is an individual internal medicine provider in San Pedro, California, licensed in California (A134430) and active in the NPI registry since April 2013. He maintains a secondary practice location in Waterbury.

NPPES Registry Identity

NPI1154765998

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameREESE PRESCOTT ISAACSON

Location Address593 W 6TH STSan Pedro, CA 90731-2521

Mailing Address593 W 6th StSan Pedro, CA 90731-2521 · (310) 547-0202

Phone(310) 547-0202

Sole ProprietorYes

Enumeration DateApril 23, 2013

Last NPPES UpdateJuly 2, 20262 updates tracked since enumeration

NPPES CertifiedJuly 2, 2026

✔ NPI 1154765998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CA · A134430

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.

Also ListedHospitalistTaxonomy 208M00000X · License 56916 (CT)

593 W 6TH ST, San Pedro, CA 90731

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Secondary Practice Location 1

Location 164 Robbins StWaterbury, CT 06708-2613 · Phone (203) 573-6232 · Fax (203) 573-6030

Other Identifiers 1

OtherRI3232267556Usc

Other Providers at the Same Location NPPES 19

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

DR. JOHN BAPTIST RUSSO M.D.

Preventive Medicine (Public Health & General Preventive Medicine)