1. Home
  2. Directory
  3. Colorado
  4. Greenwood Village
  5. Anesthesiology
  6. NPI Profile

DR. AARON J HANSEN MD
NPI 1447289822
Anesthesiology in Greenwood Village, CO

Active since June 30, 2006PECOS EnrolledAccepts Medicare Assignment
96.08/100
CMS Quality Rating
8000 E MAPLEWOOD AVE STE 200, GREENWOOD VILLAGE, CO 80111(303) 438-3999(720) 439-9500 Get Directions Write a Review

NPPES record last updated: July 31, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 31, 2024, Dec 26, 2019 (2 updates tracked since 2019).

About Dr. Aaron J Hansen Md NPPES

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

DR. AARON J HANSEN MD (NPI 1447289822) is an individual anesthesiology provider in Greenwood Village, Colorado, licensed in Colorado (44605) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Spartanburg Medical Center, and maintains a secondary practice location in Greenville.

NPPES Registry Identity

NPI1447289822
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. AARON J HANSENCredential: MD
Location Address8000 E MAPLEWOOD AVE STE 200Greenwood Village, CO 80111-4727
Mailing Address8000 E Maplewood Ave Ste 200Greenwood Village, CO 80111-4727 · (303) 438-3999 · Fax (720) 439-9500
Phone(303) 438-3999
Fax(720) 439-9500
Sole ProprietorNo
Medical School CMSSanford School Of Medicine Of University Of South DakotaGraduated 2002
Enumeration DateJune 30, 2006
Last NPPES UpdateJuly 31, 20242 updates tracked since enumeration
NPPES CertifiedJuly 31, 2024
✔ NPI 1447289822 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in CO · 44605✔ Licensed in SC · 86796
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
8000 E MAPLEWOOD AVE STE 200, Greenwood Village, CO 80111
Open in Google Maps ↗

Secondary Practice Location 1

Location 17 Independence Pt Ste 300Greenville, SC 29615-4569 · Phone (864) 522-3700 · Fax (864) 522-3705

Other Identifiers 1

Medicaid02906848CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include First Choice Next, Oscar Insurance Company.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

Dr. Aaron J Hansen 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 ID547264921
PECOS Enrollment IDI20211102001555
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 Aaron Hansen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ghs Partners In Health, Inc.
1,253 mi
Urology
135 PROFESSIONAL PARK DR
Seneca, SC 29678
  • Reassigned Medicare billing, South Carolina enrollment
  • Medicare enrollment name: Prisma Health University Medical Group
  • 3,281 clinicians in this Medicare group
NPI 1457730814 (864) 882-5306
Spartanburg Medical Center
1,270 mi
Family Medicine
135 BOTANICAL CIR
Travelers Rest, SC 29690
  • Reassigned Medicare billing, South Carolina enrollment
  • Also billed through NPI 1639273386 (South Carolina), NPI 1427096528 (South Carolina)
  • 754 clinicians in this Medicare group
NPI 1477938777 (864) 849-9210

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

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
65 services65 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
55 services55 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
25 services25 patients
Anesthesia for other closed procedure on chest 00520
Anesthesia for a closed chest procedure involves the use of medications to block sensation, ensuring you don't feel pain during the procedure. It can be general (you're asleep) or regional (part of your body is numbed). This helps maintain comfort and safety.
20 services20 patients
Anesthesia for extensive surgery on spine 00670
Anesthesia for extensive spine surgery involves medication to block pain and make you unconscious during the procedure. It ensures comfort and prevents movement. Two types may be used: general (you sleep) or regional (numbs a large area). The choice depends on the surgery specifics and your health.
18 services18 patients
Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447
This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.
16 services16 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Spartanburg Medical Center

Acute Care Hospitals · Spartanburg, SC
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number420007
Location101 E Wood StSpartanburg, SC 29303 · Spartanburg County
Emergency services Birthing friendly

Cherokee Medical Center

Acute Care Hospitals · Gaffney, SC
2/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number420043
Location1530 N Limestone StGaffney, SC 29340 · Cherokee County
Emergency services

Pelham Medical Center

Acute Care Hospitals · Greer, SC
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number420103
Location250 Westmoreland RoadGreer, SC 29651 · Greenville County
Emergency services

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

96.08/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality92.17
Promoting Interoperability100
Improvement Activities40

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.

LAURA KATHERINE KNOBLAUCH CAA
Anesthesiologist Assistant
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
MISS BAYLEE M WHITE CAA
Anesthesiologist Assistant
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
JAYME M FILIPOWICZ
Anesthesiologist Assistant
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
DR. BRUCE R. BAIRD MD
Anesthesiology
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
AMBER PRESLIER AA
Anesthesiologist Assistant
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 785-4700
DR. ROBERT CARTER JONES MD
Anesthesiology
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
DAVID KALANTAROV CAA
Anesthesiologist Assistant
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999
JACOB MATTHEW ENTIN M.D.
Anesthesiology
8000 E MAPLEWOOD AVE STE 200
GREENWOOD VILLAGE, CO 80111
Arapahoe County (303) 438-3999

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 Aaron Hansen's NPI number?

The NPI number for Aaron Hansen is 1447289822. It was assigned to this individual provider in the NPPES registry on June 30, 2006.

Where is Aaron Hansen located?

Aaron Hansen practices at 8000 E Maplewood Ave Ste 200, Greenwood Village, CO 80111. The listed phone number is (303) 438-3999.

What is Aaron Hansen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Aaron Hansen enrolled in Medicare?

Yes. Aaron Hansen 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 Aaron Hansen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Hansen reassigns Medicare benefits to 2 organizations: Ghs Partners In Health, Inc. (Seneca, SC) and Spartanburg Medical Center (Travelers Rest, SC). 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 Aaron Hansen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aaron Hansen accept?

Health plans from First Choice Next and Oscar Insurance Company list Aaron Hansen 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.

Is Aaron Hansen affiliated with any hospitals?

According to CMS data, Aaron Hansen is affiliated with Spartanburg Medical Center, Cherokee Medical Center and Pelham Medical Center.

When was this NPI record last updated?

The NPPES record for Aaron Hansen was last updated on July 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.