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Internal Medicine Providers in San Bernardino, CA

Browse 58 Internal Medicine providers listed in NPPES with a practice address in San Bernardino, California.

58 Healthcare Providers

How San Bernardino compares with the U.S.

San Bernardino has 26 clinicians in Internal Medicine per 100,000 residents, about 59% of the U.S. rate of 44.

That is 58 active clinicians in Internal Medicine with a practice address in San Bernardino, for a population of 222,724.

The California rate is 45 per 100,000 residents.

What these numbers mean

Clinicians per 100,000 residents compares places of different sizes. We count active clinicians who list a practice address in the area in the federal NPI registry (NPPES) and divide by the number of people who live there, according to the U.S. Census Bureau. The U.S. rate is the same calculation for the whole country.

A higher number does not mean it is easier to get an appointment, that wait times are shorter, or that care is better. It also does not show how many clinicians are accepting new patients or which insurance plans they take. A lower number does not by itself mean there is a shortage.

City counts use the city name in each clinician's practice address. That postal city can cover a larger or smaller area than the city limits the Census Bureau uses for population, and many clinicians list only one address even if they work in several places.

98% of clinicians in Internal Medicine in San Bernardino listed in the CMS Medicare file (45 of 46) accept Medicare assignment. That is similar to the California share of 96%.

What is Medicare assignment?

A clinician who accepts Medicare assignment agrees to take the Medicare-approved amount as full payment for services that Original Medicare covers. You usually still pay your deductible and coinsurance. This comes from the CMS Doctors and Clinicians file and applies to Original Medicare only. Medicare Advantage plans have their own provider networks. It does not show whether a clinician is taking new patients.

Some clinicians are listed as "may accept assignment," which means they can decide case by case. Clinicians without an assignment flag, or who are not in the CMS file, are not counted as accepting assignment. That does not mean they refuse Medicare. Ask the office before your visit.

22% of clinicians in Internal Medicine in San Bernardino listed in the CMS Medicare file (10 of 46) have a CMS telehealth indicator, meaning their recent Medicare claims include telehealth services. That is lower than the California share of 38%.

About the telehealth indicator

The telehealth indicator comes from CMS. It marks clinicians whose recent paid Medicare claims include services delivered by telehealth. It means a clinician has provided some services by telehealth, not that every visit can be done online. A clinician without the indicator may still offer telehealth, for example to patients who are not on Medicare. Ask the office which visits can be done by video or phone.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026. Medicare assignment and telehealth indicators: CMS Doctors and Clinicians National Downloadable File. Population: U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates, Table B01003 (Total Population).

Internal Medicine Medicare (PECOS) Enrollment & Ordering Eligibility

Medicare enrollment and order/referring eligibility listed by CMS for Internal Medicine practitioners in San Bernardino, CA

Source: CMS PECOS
PECOS Enrolled Specialists 52 In San Bernardino, CA
Part B Lab & Imaging Eligible 52 Diagnostic Referrals
DME Ordering Eligible 52 Durable Medical Equipment
Home Health Agency Referrals 52 HHA Ordering Eligible
Showing 1โ€“20 of 58 providers
With recent CMS data first, then Aโ€“Z

Dr. Molara Nnenna Alexis , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1134380751
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Dr. Susan Aminzai , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1700 N Waterman Ave, San Bernardino, CA 924045105
Phone: 9098838611
NPI Identifier 1619471091
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Dr. Shuang Bai , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
399 E Highland Ave, Suite 502, San Bernardino, CA 924043808
Phone: 9098833838
NPI Identifier 1154346799
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Dr. Shameela Begum , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 0000000000
NPI Identifier 1508432196
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Dr. David Alfonso Bolivar , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
598 N F St, San Bernardino, CA 924103110
Phone: 9098888152
NPI Identifier 1801830609
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Dr. Samuel Antonio Bolivar , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
555 N D St, Suite 130, San Bernardino, CA 924011305
Phone: 9098888154
NPI Identifier 1144251067
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Dr. Carina D Buhay , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1700 N Waterman Ave, San Bernardino, CA 924045115
Phone: 9098838611
NPI Identifier 1639143530
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Dr. Brian Michael Bush , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1255893285
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Dr. Roberto Contreras , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
685 Carnegie Dr, Suite 230, San Bernardino, CA 924083502
Phone: 9098900407
NPI Identifier 1316173404
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Dr. Peter Csapoczi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1700 N Waterman Ave, San Bernardino, CA 924045115
Phone: 9098838611
NPI Identifier 1841357118
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Dr. Hai Ngoc Dao , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1700 N Waterman Ave, San Bernardino, CA 924045115
Phone: 9098838611
NPI Identifier 1033312202
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Dr. Magdi Sabri Elsaadi , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
2015 N Waterman Ave Ste A, San Bernardino, CA 924044810
Phone: 9095570135
NPI Identifier 1902876683
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Dr. Justin A. Fu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1447447818
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Dr. Cesia Garrido , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
250 S G St, San Bernardino, CA 924103320
Phone: 9093827100
NPI Identifier 1376120790
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Dr. Abdullah Khan Ghoury , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1972715381
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Dr. Wilson Gomer , MD

Internal Medicine

Active NPI Status
1800 N Western Ave, #103, San Bernardino, CA 92411
Phone: 9098877427
NPI Identifier 1184656928
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Dr. Alaa Hajal , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1669829032
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Dr. John Hoang , DO

Internal Medicine

Active NPI Status Accepts Medicare Assignment
2101 N Waterman Ave, San Bernardino, CA 924044836
Phone: 9098814520
NPI Identifier 1265651632
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Dr. Tu Hoang , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1881 Commercenter E, Suite 120, San Bernardino, CA 924083456
Phone: 9093889222
NPI Identifier 1588696223
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Dr. Ousama Ismael , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1869 N Waterman Ave Ste 200, San Bernardino, CA 924044830
Phone: 9098810030
NPI Identifier 1740451079
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Frequently Asked Questions about Internal Medicine in San Bernardino

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the California licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.