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

HALEY MAREK AMENSON MD
NPI 1841878709
Anesthesiology - Pediatric Anesthesiology in Aurora, CO

Q: What is Haley Amenson's NPI number?

The NPI number for Haley Amenson is 1841878709. It was assigned to this individual provider in the NPPES registry on March 31, 2021. The provider is also known as Haley Gilbertson Marek MD.

Q: What is Haley Amenson's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Q: When was this NPI record last updated?

The NPPES record for Haley Amenson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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 March 31, 2021PECOS Enrolled

13123 E 16TH AVE, AURORA, CO 80045(720) 777-1234 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Aug 4, 2025, Mar 31, 2021 (3 updates tracked since 2021).

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About Haley Marek Amenson Md NPPES

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

HALEY MAREK AMENSON MD (NPI 1841878709) is an individual pediatric anesthesiology provider in Aurora, Colorado, licensed in Colorado (DR.0075705) and active in the NPI registry since March 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1841878709

Entity TypeIndividualFemale

Primary Taxonomy207LP3000X

Provider Legal NameHALEY MAREK AMENSONCredential: MD

Location Address13123 E 16TH AVEAurora, CO 80045-7106

Mailing AddressPo Box 110429Aurora, CO 80042-0429

Phone(720) 777-1234

Sole ProprietorNo

Enumeration DateMarch 31, 2021

Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration

NPPES CertifiedJuly 13, 2026

✔ NPI 1841878709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pediatric AnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207LP3000X

License✔ Licensed in CO · DR.0075705

Definition

An anesthesiologist who has had additional skill and experience in and is primarily concerned with the anesthesia, sedation, and pain management needs of infants and children. A pediatric anesthesiologist generally provides services including the evaluation of complex medical problems in infants and children when surgery is necessary, planning and care for children before and after surgery, pain control, anesthesia and sedation for any procedures out of the operating room such as MRI, CT scan, and radiation therapy.

Also ListedAnesthesiologyTaxonomy 207L00000X · License DR.0075705 (CO)

13123 E 16TH AVE, Aurora, CO 80045

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Other Names 1

Former Name (1)Haley Gilbertson Marek Md

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Haley Marek Amenson 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

$72.20 typical visit price

range $18.88 – $142.79

Typical copayment $18.05 (range $4.72 – $35.69)

Most-billed visit code 99213

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 Haley Amenson's NPI number?

The NPI number for Haley Amenson is 1841878709. It was assigned to this individual provider in the NPPES registry on March 31, 2021. The provider is also known as Haley Gilbertson Marek MD.

Where is Haley Amenson located?

Haley Amenson practices at 13123 E 16th Ave, Aurora, CO 80045. The listed phone number is (720) 777-1234.

What is Haley Amenson's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pediatric Anesthesiology, with taxonomy code 207LP3000X.

Is Haley Amenson enrolled in Medicare?

Yes. Haley Amenson is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Haley Amenson was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days 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.