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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.

DR. ROBERT NIIHARA MD
NPI 1831889237
Internal Medicine in Loma Linda, CA

Active since May 09, 2023PECOS Enrolled
11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE C, LOMA LINDA, CA 92354(909) 558-4074 Get Directions Write a Review

NPPES record last updated: July 14, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 14, 2026, May 9, 2023 (2 updates tracked since 2023).

About Dr. Robert Niihara Md NPPES

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

DR. ROBERT NIIHARA MD (NPI 1831889237) is an individual internal medicine provider in Loma Linda, California, licensed in California (A203676) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2023).

NPPES Registry Identity

NPI1831889237
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. ROBERT NIIHARACredential: MD
Location Address11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE CLoma Linda, CA 92354-2804
Mailing Address11234 Anderson Street, Gme Office Westerly Suite CLoma Linda, CA 92354-2804 · (909) 558-4074
Phone(909) 558-4074
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2023
Enumeration DateMay 9, 2023
Last NPPES UpdateJuly 14, 20262 updates tracked since enumeration
NPPES CertifiedJuly 14, 2026
✔ NPI 1831889237 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 · A203676
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.
11234 ANDERSON STREET, Loma Linda, CA 92354
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert Niihara Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9739676230
PECOS Enrollment IDI20260528004671
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92354 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

KAREN RACHEL STUDER M.D.
Preventive Medicine (Public Health & General Preventive Medicine)
11234 ANDERSON STREET, GRADUATE MEDICAL EDUCATION OFFICE CP 21005
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4000
ABHISHEK JAY DHARAN MD
Student in an Organized Health Care Education/Training Program
11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE C
LOMA LINDA, CA 92354
San Bernardino County (909) 558-6491
RACHEL ELIZABETH GELFOND DAVIDGE D.O.
Pediatrics
11234 ANDERSON STREET, LOMA LINDA UNIVERSITY HEALTH, GENERAL PEDIATRICS
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4174
DR. KRISTINA KYLE M.D.
Emergency Medicine
11234 ANDERSON STREET, LOMA LINDA UNIVERSITY HEALTH - EMERGENCY MEDICINE
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4085
DOUGLAS WANG
Internal Medicine
11234 ANDERSON STREET, GME OFFICE WESTERLY SUITE C
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4174
FARAH SHAKER ABED ABUAZZAM
Student in an Organized Health Care Education/Training Program
11234 ANDERSON STREET
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4911
DR. JOSHUA STUART MACLAUGHLAN MD
Radiology (Diagnostic Radiology)
11234 ANDERSON STREET
LOMA LINDA, CA 92354
San Bernardino County (909) 558-7814
YURI JIN
Emergency Medicine
11234 ANDERSON STREET, EMERGENCY MEDICINE
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4085

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 Robert Niihara's NPI number?

The NPI number for Robert Niihara is 1831889237. It was assigned to this individual provider in the NPPES registry on May 9, 2023.

Where is Robert Niihara located?

Robert Niihara practices at 11234 Anderson Street Gme Office Westerly Suite C, Loma Linda, CA 92354. The listed phone number is (909) 558-4074.

What is Robert Niihara's specialty?

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

Is Robert Niihara enrolled in Medicare?

Yes. Robert Niihara is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Robert Niihara was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.