ALLISON LONG MD
NPI 1639225238
Anesthesiology in Denver, CO
About Allison Long Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON LONG MD (NPI 1639225238) is an individual anesthesiology provider in Denver, Colorado, licensed in Colorado (48022) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (2005).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
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
Allison Long 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.
Medicare Billing Reassignment
Medicare enrollment records show Allison Long reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Glenwood Springs, CO 81601
- Reassigned Medicare billing, Colorado enrollment
- 32 clinicians in this Medicare group
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 5
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.
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.
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.
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
DENVER, CO 80262
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 Allison Long's NPI number?
The NPI number for Allison Long is 1639225238. It was assigned to this individual provider in the NPPES registry on January 26, 2007.
Where is Allison Long located?
Allison Long practices at University Of Colorado School Of Medicine 4200 E. 9th Ave., Denver, CO 80262. The listed phone number is (303) 493-7000.
What is Allison Long's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Allison Long enrolled in Medicare?
Yes. Allison Long 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 Allison Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Long reassigns Medicare benefits to Glenwood Anesthesia Professionals, PC (Glenwood Springs, 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 Allison Long'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 Allison Long was last updated on April 20, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Allison Long, MD · NPI 1639225238
Anesthesiology physician in Denver, Colorado. Individual provider, active in the CMS NPPES registry since January 26, 2007.
## Identity
- **NPI:** 1639225238 (Entity type: Individual)
- **Enumerated:** January 26, 2007
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 48022 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, 4200 E. 9TH AVE., Denver, CO 80262-0001
- **Phone:** (303) 493-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Glenwood Anesthesia Professionals, PC (NPI 1013335389, Glenwood Springs, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 2005
## Record status
- **NPPES last updated:** April 20, 2011
- **Other identifiers:** Medicaid 21032050 (CO); Medicare PIN CO305717 (CO); Other 20302 (CO); and 1 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1639225238) · Data from the CMS NPPES public registry.