CHARLES ABREU MD
NPI 1942837323
Hospitalist in Riverside, CA

Active since March 25, 2020PECOS EnrolledAccepts Medicare Assignment
4234 RIVERWALK PKWY STE 230, RIVERSIDE, CA 92505(951) 781-3672(951) 781-0365 Get Directions Write a Review

NPPES record last updated: May 16, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 16, 2026, Mar 28, 2023, Mar 25, 2020 (3 updates tracked since 2020).

About Charles Abreu Md NPPES

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

CHARLES ABREU MD (NPI 1942837323) is an individual hospitalist provider in Riverside, California, licensed in Ohio (35.147514) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Riverside Methodist Hospital, and maintains a secondary practice location in Columbus.

NPPES Registry Identity

NPI1942837323
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameCHARLES ABREUCredential: MD
Location Address4234 RIVERWALK PKWY STE 230Riverside, CA 92505-3312
Mailing Address4234 Riverwalk Pkwy Ste 230Riverside, CA 92505-3312 · (951) 781-3672 · Fax (951) 781-0365
Fax(951) 781-0365
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 2020
Enumeration DateMarch 25, 2020
Last NPPES UpdateMay 16, 20263 updates tracked since enumeration
NPPES CertifiedMay 16, 2026
NPI 1942837323 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in OH · 35.147514
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License 35.147514 (OH)
4234 RIVERWALK PKWY STE 230, Riverside, CA 92505

Secondary Practice Location 1

Location 15100 W Broad StColumbus, OH 43228-1607 · Phone (614) 544-4691 · Fax (614) 544-0052

Accepted Insurance

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

Charles Abreu 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.

PECOS PAC ID547691099
PECOS Enrollment IDI20240102002305
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.

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Riverside Methodist Hospital

Acute Care Hospitals · Columbus, OH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number360006
Location3535 Olentangy River RdColumbus, OH 43214 · Franklin County
Emergency services Birthing friendly

Doctors Hospital

Acute Care Hospitals · Columbus, OH
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number360152
Location5100 West Broad StreetColumbus, OH 43228 · Franklin County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92505 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.

Psychiatry & Neurology (Neurocritical Care)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Nurse Practitioner (Gerontology)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Nurse Anesthetist, Certified Registered
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Internal Medicine (Critical Care Medicine)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Internal Medicine (Pulmonary Disease)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Internal Medicine (Pulmonary Disease)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Internal Medicine (Critical Care Medicine)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505
Internal Medicine (Critical Care Medicine)
4234 RIVERWALK PKWY STE 230
RIVERSIDE, CA 92505

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 Charles Abreu's NPI number?

The NPI number for Charles Abreu is 1942837323. It was assigned to this individual provider in the NPPES registry on March 25, 2020.

Where is Charles Abreu located?

Charles Abreu practices at 4234 Riverwalk Pkwy Ste 230, Riverside, CA 92505. The listed phone number is (951) 781-3672.

What is Charles Abreu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Charles Abreu enrolled in Medicare?

Yes. Charles Abreu 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.

What insurance does Charles Abreu accept?

Health plans from CareSource list Charles Abreu 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.

Is Charles Abreu affiliated with any hospitals?

According to CMS data, Charles Abreu is affiliated with Riverside Methodist Hospital and Doctors Hospital.

When was this NPI record last updated?

The NPPES record for Charles Abreu was last updated on May 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.