ISAIAH MARK HORTON MD
NPI 1053803940
Internal Medicine in Redlands, CA
About Isaiah Mark Horton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ISAIAH MARK HORTON MD (NPI 1053803940) is an individual internal medicine provider in Redlands, California, licensed in California (A200368) and active in the NPI registry since June 2018. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Isaiah Mark Horton Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92373 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Isaiah Horton's NPI number?
The NPI number for Isaiah Horton is 1053803940. It was assigned to this individual provider in the NPPES registry on June 5, 2018.
Where is Isaiah Horton located?
Isaiah Horton practices at 245 Terracina Blvd Ste 105, Redlands, CA 92373. The listed phone number is (909) 335-4102.
What is Isaiah Horton's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Isaiah Horton enrolled in Medicare?
Yes. Isaiah Horton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Isaiah Horton was last updated on December 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months 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.
# Isaiah Mark Horton, MD · NPI 1053803940
Internal Medicine physician in Redlands, California. Individual provider, active in the CMS NPPES registry since June 5, 2018.
## Identity
- **NPI:** 1053803940 (Entity type: Individual)
- **Enumerated:** June 5, 2018
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A200368 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 245 TERRACINA BLVD STE 105, Redlands, CA 92373-4879
- **Phone:** (909) 335-4102
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Loma Linda University School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** December 17, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1053803940) · Data from the CMS NPPES public registry.