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IASSON YI MD
NPI 1598394181
Anesthesiology - Pain Medicine in Englewood, CO

Active since April 06, 2020PECOS EnrolledAccepts Medicare Assignment
45 INVERNESS DR E STE 350, ENGLEWOOD, CO 80112(720) 870-7446 Get Directions Write a Review

NPPES record last updated: May 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 7, 2026, Sep 10, 2021, Apr 6, 2020 (3 updates tracked since 2020).

About Iasson Yi Md NPPES

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

IASSON YI MD (NPI 1598394181) is an individual pain medicine provider in Englewood, Colorado, licensed in Colorado (DR.0075826) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Howard University College Of Medicine (2020).

NPPES Registry Identity

NPI1598394181
Entity TypeIndividualMale
Primary Taxonomy207LP2900X
Provider Legal NameIASSON YICredential: MD
Location Address45 INVERNESS DR E STE 350Englewood, CO 80112-5412
Mailing Address145 Inverness Dr E Ste 350Englewood, CO 80112-5173 · (801) 581-3622
Phone(720) 870-7446
Sole ProprietorNo
Medical School CMSHoward University College Of MedicineGraduated 2020
Enumeration DateApril 6, 2020
Last NPPES UpdateMay 7, 20263 updates tracked since enumeration
NPPES CertifiedMay 7, 2026
✔ NPI 1598394181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207LP2900X
License✔ Licensed in CO · DR.0075826
Definition
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.
Also ListedAnesthesiologyTaxonomy 207L00000X · License 12420135-1205 (UT)
45 INVERNESS DR E STE 350, Englewood, CO 80112
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Secondary Practice Locations 2

Location 18101 E Lowry Blvd Ste 120Denver, CO 80230-7195 · Phone (303) 909-4157
Location 230 N 1900 E Rm 3C444Salt Lake City, UT 84132-0002 · Phone (801) 581-3622

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

Iasson Yi 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 ID4981009933
PECOS Enrollment IDI20250822001574
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

3

Medicare enrollment records show Iasson Yi reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Advanced Pain And Anesthesia Services, PC
0.8 mi
Pain Medicine
145 INVERNESS DR E STE 350
Englewood, CO 80112
  • Reassigned Medicare billing, Colorado enrollment
  • 5 clinicians in this Medicare group
NPI 1336175546 (720) 870-7446
Orthopedic Centers Of Colorado, LLC
10 mi
Orthopaedic Surgery
8101 E LOWRY BLVD STE 120
Denver, CO 80230
  • Reassigned Medicare billing, Colorado enrollment
  • 395 clinicians in this Medicare group
NPI 1801339502 (303) 806-1998
Hospitalist Medicine Physicians Of Colorado - Denver PC
13 mi
Anesthesiology
1375 E 19TH AVE
Denver, CO 80218
  • Reassigned Medicare billing, Colorado enrollment
  • 160 clinicians in this Medicare group
NPI 1588453575 (303) 812-6400

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

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 Iasson Yi's NPI number?

The NPI number for Iasson Yi is 1598394181. It was assigned to this individual provider in the NPPES registry on April 6, 2020.

Where is Iasson Yi located?

Iasson Yi practices at 45 Inverness Dr E Ste 350, Englewood, CO 80112. The listed phone number is (720) 870-7446.

What is Iasson Yi's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Is Iasson Yi enrolled in Medicare?

Yes. Iasson Yi 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 Iasson Yi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Iasson Yi reassigns Medicare benefits to 3 organizations: Advanced Pain And Anesthesia Services, PC (Englewood, CO), Orthopedic Centers Of Colorado, LLC (Denver, CO) and Hospitalist Medicine Physicians Of Colorado - Denver PC (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 Iasson Yi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Iasson Yi was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.