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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.

MONROE SEIBERLING JR. M.D.
NPI 1740237783
Internal Medicine in Redlands, CA

Active since May 27, 2006
2 W FERN AVE, REDLANDS, CA 92373(909) 793-3311(909) 796-4158 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Monroe Seiberling Jr. M.d. NPPES

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

MONROE SEIBERLING JR. M.D. (NPI 1740237783) is an individual internal medicine provider in Redlands, California, licensed in California (G18877) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1740237783
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMONROE SEIBERLING JR.Credential: M.D.
Location Address2 W FERN AVERedlands, CA 92373-5916
Mailing AddressPo Box 2200Redlands, CA 92373-0722 · (909) 793-3311 · Fax (909) 796-4158
Phone(909) 793-3311
Fax(909) 796-4158
Sole ProprietorNo
Enumeration DateMay 27, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1740237783 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G18877
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.
2 W FERN AVE, Redlands, CA 92373
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Other Identifiers 1

Medicaid00G188770CA

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.

CYNTHIA L PACHECO AGACNP
Nurse Practitioner (Acute Care)
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311
MRS. LISA C ANDERSON N.P.
Nurse Practitioner
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311
MR. LUIS A SANCHEZ DO
Anesthesiology
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311
MADISON TUCKER ZAGURSKI PA-C
Physician Assistant (Medical)
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 792-2605
DR. BRADLEY BASINGER M.D.
Surgery
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311
JOHN W MORTENSEN M.D.
Radiology (Diagnostic Radiology)
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311
NARMISHA VIJAY PATEL M.D
Hospitalist
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 583-2741
DR. KEVIN JAN CHAN MD
Hospitalist
2 W FERN AVE
REDLANDS, CA 92373
San Bernardino County (909) 793-3311

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 Monroe Seiberling's NPI number?

The NPI number for Monroe Seiberling is 1740237783. It was assigned to this individual provider in the NPPES registry on May 27, 2006.

Where is Monroe Seiberling located?

Monroe Seiberling practices at 2 W Fern Ave, Redlands, CA 92373. The listed phone number is (909) 793-3311.

What is Monroe Seiberling's specialty?

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

When was this NPI record last updated?

The NPPES record for Monroe Seiberling 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 35 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.