1. Home
  2. Directory
  3. Colorado
  4. Aurora
  5. Obstetrics Gynecology
  6. NPI Profile

GILLIAN CHOP MD
NPI 1316567282
Obstetrics & Gynecology - Maternal & Fetal Medicine in Aurora, CO

Active since April 21, 2020PECOS EnrolledAccepts Medicare Assignment
1635 AURORA CT, AURORA, CO 80045(720) 848-0000 Get Directions Write a Review

NPPES record last updated: February 4, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Feb 4, 2025, Jun 9, 2024, Aug 23, 2023 and 1 more (4 updates tracked since 2020).

About Gillian Chop Md NPPES

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

GILLIAN CHOP MD (NPI 1316567282) is an individual maternal & fetal medicine provider in Aurora, Colorado, licensed in Colorado (DR.0073015) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Denver, and is a graduate of Wayne State University School Of Medicine (2020).

NPPES Registry Identity

NPI1316567282
Entity TypeIndividualFemale
Primary Taxonomy207VM0101X
Provider Legal NameGILLIAN CHOPCredential: MD
Location Address1635 AURORA CTAurora, CO 80045-2541
Mailing AddressPo Box 110429Aurora, CO 80042-0429
Phone(720) 848-0000
Sole ProprietorNo
Medical School CMSWayne State University School Of MedicineGraduated 2020
Enumeration DateApril 21, 2020
Last NPPES UpdateFebruary 4, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 4, 2025
✔ NPI 1316567282 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Maternal & Fetal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207VM0101X
License✔ Licensed in CO · DR.0073015
Definition
An obstetrician/gynecologist who cares for, or provides consultation on, patients with complications of pregnancy. This specialist has advanced knowledge of the obstetrical, medical and surgical complications of pregnancy and their effect on both the mother and the fetus. The specialist also possesses expertise in the most current diagnostic and treatment modalities used in the care of patients with complicated pregnancies.
Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License 0101274885 (VA), DR0073015 (CO)
1635 AURORA CT, Aurora, CO 80045
Open in Google Maps ↗

Secondary Practice Location 1

Location 1777 Bannock StDenver, CO 80204-4597 · Phone (303) 602-2717

Accepted Insurance

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

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gillian Chop Md 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 ID9234571746
PECOS Enrollment IDI20240530000139
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Gillian Chop reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Physicians Incorporated
0.1 mi
Internal Medicine
12605 E 16TH AVE, UNIVERSITY OF COLORADO HOSPITAL
Aurora, CO 80045
  • Reassigned Medicare billing, Colorado enrollment
  • 4,283 clinicians in this Medicare group
NPI 1962461889 (303) 493-7000
Denver Health And Hospital Authority
8.1 mi
General Practice
777 BANNOCK ST
Denver, CO 80204
  • Reassigned Medicare billing, Colorado enrollment
  • 2,259 clinicians in this Medicare group
NPI 1477569838 (303) 436-6000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

CATHERINE ELIZABETH CALLINAN MD
Obstetrics & Gynecology
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
RUI ZHENG-PYWELL MD
Colon & Rectal Surgery
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
ANNA NGUYEN PA-C
Physician Assistant (Surgical)
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
JENNIFER SKRENTA PA
Physician Assistant (Surgical)
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0833
JORDAN ALEECE FLETCHER MD
Obstetrics & Gynecology
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-1060
KARA LEIGH MOTLEY MD
Obstetrics & Gynecology
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000
DR. STEVEN DAWSON JR. MD
Student in an Organized Health Care Education/Training Program
1635 AURORA CT
AURORA, CO 80045
Adams County (303) 724-4620
DR. TESS LAURYNN SCHULTZ DO
Psychiatry & Neurology (Pain Medicine)
1635 AURORA CT
AURORA, CO 80045
Adams County (720) 848-0000

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 Gillian Chop's NPI number?

The NPI number for Gillian Chop is 1316567282. It was assigned to this individual provider in the NPPES registry on April 21, 2020.

Where is Gillian Chop located?

Gillian Chop practices at 1635 Aurora Ct, Aurora, CO 80045. The listed phone number is (720) 848-0000.

What is Gillian Chop's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.

Is Gillian Chop enrolled in Medicare?

Yes. Gillian Chop 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.

Which organizations bill Medicare for Gillian Chop's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gillian Chop reassigns Medicare benefits to 2 organizations: University Physicians Incorporated (Aurora, CO) and Denver Health And Hospital Authority (Denver, CO). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gillian Chop's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gillian Chop accept?

Health plans from Select Health and UnitedHealthcare list Gillian Chop 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 Gillian Chop was last updated on February 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 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.