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RYAN FIFER WELCH
NPI 1811877939
Anesthesiologist Assistant in Denver, CO

Active since September 08, 2025Accepts Medicare Assignment
1719 E 19TH AVE, DENVER, CO 80218(720) 754-6000 Get Directions Write a Review

NPPES record last updated: September 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ryan Fifer Welch NPPES

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

RYAN FIFER WELCH (NPI 1811877939) is an individual anesthesiologist assistant in Denver, Colorado, licensed in Colorado (ANT.0000313) and active in the NPI registry since September 2025. He is a graduate of Other (2025).

NPPES Registry Identity

NPI1811877939
Entity TypeIndividualMale
Primary Taxonomy367H00000X
Provider Legal NameRYAN FIFER WELCH
Location Address1719 E 19TH AVEDenver, CO 80218-1235
Mailing AddressPo Box 8225Jackson, WY 83002-8225 · (307) 203-0657
Phone(720) 754-6000
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateSeptember 8, 2025
NPPES CertifiedSeptember 8, 2025
✔ NPI 1811877939 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
License✔ Licensed in CO · ANT.0000313
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.

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

Ryan Fifer Welch 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 ID5294232013
PECOS Enrollment IDI20251008001764

Medicare Billing Reassignment

Medicare enrollment records show Ryan Welch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Us Anesthesia Partners Of Colorado Inc.
Anesthesiology
8000 E MAPLEWOOD AVE STE 120
Greenwood Village, CO 80111
  • Reassigned Medicare billing, Colorado enrollment
  • 971 clinicians in this Medicare group
NPI 1922365782 (303) 438-3999

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

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.

DR. LISA MARIE GRISS MD
Pediatrics
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 754-4400
MARIAH MEEKS RN
Registered Nurse (Critical Care Medicine)
1719 E 19TH AVE
DENVER, CO 80218
Denver County (720) 754-6000
ALAN J. COMO
Emergency Medicine
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 839-7111
KATHRYN BRECHT MS, NNP-BC
Nurse Practitioner (Neonatal)
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 839-6000
OBSTETRIX MEDICAL GROUP OF COLORADO, P.C.
Pediatrics (Pediatric Cardiology)
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 839-6000
DANIEL W LAWLER
Anesthesiology
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 869-2429
DR. HEATHER EMILY JOHNSON MD
Hospitalist
1719 E 19TH AVE
DENVER, CO 80218
Denver County (713) 500-6526
DR. JULIA WAIKEE WONG DO
Hospitalist
1719 E 19TH AVE
DENVER, CO 80218
Denver County (303) 338-4545

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 Ryan Welch's NPI number?

The NPI number for Ryan Welch is 1811877939. It was assigned to this individual provider in the NPPES registry on September 8, 2025.

Where is Ryan Welch located?

Ryan Welch practices at 1719 E 19th Ave, Denver, CO 80218. The listed phone number is (720) 754-6000.

What is Ryan Welch's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Ryan Welch enrolled in Medicare?

Yes. Ryan Welch 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 organization bills Medicare for Ryan Welch's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ryan Welch reassigns Medicare benefits to Us Anesthesia Partners Of Colorado Inc. (Greenwood Village, CO). The 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 Ryan Welch'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 Ryan Welch was last updated on September 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.