YILIEN ALONSO M.D.
NPI 1457779837
Internal Medicine - Gastroenterology in Scottsdale, AZ

Q: What is Yilien Alonso's NPI number?

The NPI number for Yilien Alonso is 1457779837. It was assigned to this individual provider in the NPPES registry on April 2, 2014.

Q: What is Yilien Alonso's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Yilien Alonso was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.

Active since April 02, 2014PECOS EnrolledAccepts Medicare Assignment

10752 N 89TH PL STE C134, SCOTTSDALE, AZ 85260(480) 860-1990(480) 860-1887 Get Directions Write a Review

NPPES record last updated: June 3, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 3, 2025, Jun 11, 2020 (2 updates tracked since 2020).

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About Yilien Alonso M.d. NPPES

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

YILIEN ALONSO M.D. (NPI 1457779837) is an individual gastroenterology provider in Scottsdale, Arizona, licensed in Arizona (76518) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Florida International Univ, College Of Medicine (2014).

NPPES Registry Identity

NPI1457779837

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameYILIEN ALONSOCredential: M.D.

Location Address10752 N 89TH PL STE C134Scottsdale, AZ 85260-7902

Mailing Address3260 N Hayden Rd Ste 112Scottsdale, AZ 85251-6650 · (602) 264-9100 · Fax (602) 264-9101

Phone(480) 860-1990

Fax(480) 860-1887

Sole ProprietorYes

Medical School CMSFlorida International Univ, College Of MedicineGraduated 2014

Enumeration DateApril 2, 2014

Last NPPES UpdateJune 3, 20252 updates tracked since enumeration

NPPES CertifiedJune 3, 2025

✔ NPI 1457779837 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in AZ · 76518

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.

10752 N 89TH PL STE C134, Scottsdale, AZ 85260

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Oscar Health Plan, Inc., UnitedHealthcare and more.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

Yilien Alonso M.d. 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 ID6204151822

PECOS Enrollment IDI20250612002729

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 85260 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

$127.71 typical visit price

range $55.44 – $168.60

Typical copayment $31.92 (range $13.86 – $42.15)

Most-billed visit code 99204

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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.

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 Yilien Alonso's NPI number?

The NPI number for Yilien Alonso is 1457779837. It was assigned to this individual provider in the NPPES registry on April 2, 2014.

Where is Yilien Alonso located?

Yilien Alonso practices at 10752 N 89th Pl Ste C134, Scottsdale, AZ 85260. The listed phone number is (480) 860-1990.

What is Yilien Alonso's specialty?

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

Is Yilien Alonso enrolled in Medicare?

Yes. Yilien Alonso 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 Yilien Alonso accept?

Health plans from Ambetter from Arizona Complete Health, Oscar Health Plan, Inc., UnitedHealthcare and Wellpoint list Yilien Alonso 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.

When was this NPI record last updated?

The NPPES record for Yilien Alonso was last updated on June 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.