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GUY T ALONSO MD
NPI 1700012432
Pediatrics - Pediatric Endocrinology in Aurora, CO

Active since June 09, 2009PECOS Enrolled
13123 E 16TH AVE, THE CHILDREN'S HOSPITAL, AURORA, CO 80045(720) 777-1234 Get Directions Write a Review

NPPES record last updated: April 17, 2013. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Guy T Alonso Md NPPES

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

GUY T ALONSO MD (NPI 1700012432) is an individual pediatric endocrinology provider in Aurora, Colorado, licensed in Colorado (DR.0052283) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1700012432
Entity TypeIndividualMale
Primary Taxonomy2080P0205X
Provider Legal NameGUY T ALONSOCredential: MD
Location Address13123 E 16TH AVE, THE CHILDREN'S HOSPITALAurora, CO 80045-7106
Mailing AddressPo Box 110429, University Physicians, Inc.Aurora, CO 80042-0429 · (303) 493-7000
Phone(720) 777-1234
Sole ProprietorNo
Enumeration DateJune 9, 2009
Last NPPES UpdateApril 17, 2013
✔ NPI 1700012432 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric EndocrinologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0205X
Licenses✔ Licensed in CO · DR.0052283✔ Licensed in TX · N2372
Definition
A pediatrician who provides expert care to infants, children and adolescents who have diseases that result from an abnormality in the endocrine glands (glands which secrete hormones). These diseases include diabetes mellitus, growth failure, unusual size for age, early or late pubertal development, birth defects, the genital region and disorders of the thyroid, the adrenal and pituitary glands.
13123 E 16TH AVE, Aurora, CO 80045
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Other Identifiers 1

Medicare PIN8L14314TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Guy T Alonso Md 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 80045 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
$132.55 typical visit price
range $58.06 – $174.82
Typical copayment $33.13 (range $14.51 – $43.70)
Most-billed visit code 99204
Established Patient
$102.03 typical visit price
range $18.88 – $142.79
Typical copayment $25.50 (range $4.72 – $35.69)
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.

ERIN TERAVEST PA
Physician Assistant (Surgical)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MELISSA KAY FRAZER AA-C
Anesthesiologist Assistant
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
RACHEL MARIE RANWEILER
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. KATHRYN LYN PEGAN AU.D.
Audiologist
13123 E 16TH AVE, 2ND FLOOR OUTPATIENT PAVILION - AUDIOLOGY
AURORA, CO 80045
Adams County (720) 777-1961
MRS. KRISTEN L HOLDER FNP-C, APRN-BC
Nurse Practitioner (Psychiatric/Mental Health)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. JILL M MARKS RN, APN
Nurse Practitioner (Pediatrics)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-1234
MRS. WENDELYN M BARRETT NNP
Registered Nurse (Neonatal Intensive Care)
13123 E 16TH AVE
AURORA, CO 80045
Adams County (720) 777-6857
DR. TIMOTHY OWEN VANDERKOOY MD
Emergency Medicine (Pediatric Emergency Medicine)
13123 E 16TH AVE, AURORA, CO 80045-7106
AURORA, CO 80045
Adams County (720) 777-1234

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 Guy Alonso's NPI number?

The NPI number for Guy Alonso is 1700012432. It was assigned to this individual provider in the NPPES registry on June 9, 2009.

Where is Guy Alonso located?

Guy Alonso practices at 13123 E 16th Ave The Children's Hospital, Aurora, CO 80045. The listed phone number is (720) 777-1234.

What is Guy Alonso's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Endocrinology, with taxonomy code 2080P0205X.

Is Guy Alonso enrolled in Medicare?

Yes. Guy Alonso is registered in the Medicare PECOS enrollment system.

What insurance does Guy Alonso accept?

Health plans from Medica and UnitedHealthcare list Guy 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 Guy Alonso was last updated on April 17, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.