Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ALEXANDER NICHOLAS PREVALLET DO
NPI 1659833556
Internal Medicine - Gastroenterology in San Diego, CA

Q: What is Alexander Prevallet's NPI number?

The NPI number for Alexander Prevallet is 1659833556. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Q: What is Alexander Prevallet's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since April 01, 2019PECOS Enrolled

4077 FIFTH AVE # MER35, SAN DIEGO, CA 92103(619) 688-0770 Get Directions Write a Review

NPPES record last updated: September 18, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 18, 2026, Sep 4, 2024, Sep 16, 2022 and 2 more (5 updates tracked since 2019).

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About Alexander Nicholas Prevallet Do NPPES

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

ALEXANDER NICHOLAS PREVALLET DO (NPI 1659833556) is an individual gastroenterology provider in San Diego, California, licensed in California (20A19716) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1659833556

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameALEXANDER NICHOLAS PREVALLETCredential: DO

Location Address4077 FIFTH AVE # MER35San Diego, CA 92103-2105

Mailing Address4077 Fifth AveSan Diego, CA 92103-2105 · (619) 686-3935

Phone(619) 688-0770

Sole ProprietorNo

Enumeration DateApril 1, 2019

Last NPPES UpdateSeptember 18, 20265 updates tracked since enumeration

NPPES CertifiedSeptember 18, 2026

✔ NPI 1659833556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in CA · 20A19716

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 20A19716 (CA)

Also ListedHospitalistTaxonomy 208M00000X · License 20A19716 (CA)

4077 FIFTH AVE # MER35, San Diego, CA 92103

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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)

Alexander Nicholas Prevallet Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 92103 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

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

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.

DR. PRANAY RAG BONAGIRI DO

Internal Medicine