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DR. CALDON HAJ MD
NPI 1548523657
Internal Medicine in San Diego, CA

Active since June 22, 2012
4052 RAFFEE DR, SAN DIEGO, CA 92117(773) 828-4310 Get Directions Write a Review

NPPES record last updated: January 3, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 3, 2024, Apr 10, 2019, Feb 8, 2019 and 1 more (4 updates tracked since 2019).

About Dr. Caldon Haj Md NPPES

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

DR. CALDON HAJ MD (NPI 1548523657) is an individual internal medicine provider in San Diego, California, licensed in Massachusetts (277622) and active in the NPI registry since June 2012. He maintains 2 additional practice locations.

NPPES Registry Identity

NPI1548523657
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CALDON HAJCredential: MD
Location Address4052 RAFFEE DRSan Diego, CA 92117-4427
Mailing Address4231 Balboa Ave # 3009San Diego, CA 92117-5504 · (773) 828-4310 · Fax (888) 959-3942
Phone(773) 828-4310
Sole ProprietorYes
Enumeration DateJune 22, 2012
Last NPPES UpdateJanuary 3, 20244 updates tracked since enumeration
NPPES CertifiedJanuary 3, 2024
✔ NPI 1548523657 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in MA · 277622✔ Licensed in KS · 04-38083✔ Licensed in CA · A153365
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.
4052 RAFFEE DR, San Diego, CA 92117
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Other Names 1

Former Name (1)Khaldoun Haj Mahmoud Md

Secondary Practice Locations 2

Location 1Coastal Medical Associates, 55 Fogg RoadWeymouth, MA 02190 · Phone (781) 624-8000 · Fax (781) 878-6750
Location 23901 Rainbow Blvd Kumc Gen and Geriatric MedKansas City, KS 66160-0001 · Phone (913) 588-6005 · Fax (913) 588-3877

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AvMed, Blue Cross and Blue Shield of Texas.Insurance ›

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 Caldon Haj's NPI number?

The NPI number for Caldon Haj is 1548523657. It was assigned to this individual provider in the NPPES registry on June 22, 2012. The provider is also known as Khaldoun Haj Mahmoud MD.

Where is Caldon Haj located?

Caldon Haj practices at 4052 Raffee Dr, San Diego, CA 92117. The listed phone number is (773) 828-4310.

What is Caldon Haj's specialty?

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

What insurance does Caldon Haj accept?

Health plans from AvMed and Blue Cross and Blue Shield of Texas list Caldon Haj as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Caldon Haj was last updated on January 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.