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WILLIAM M GAMBRELL III M.D.
NPI 1144257312
Anesthesiology in Fort Collins, CO

Active since June 26, 2006PECOS EnrolledAccepts Medicare Assignment
1236 E ELIZABETH ST STE 1, FORT COLLINS, CO 80524(970) 224-2985(970) 472-9381 Get Directions Write a Review

NPPES record last updated: December 4, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About William M Gambrell Iii M.d. NPPES

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

WILLIAM M GAMBRELL III M.D. (NPI 1144257312) is an individual anesthesiology provider in Fort Collins, Colorado, licensed in Colorado (DR.0039094) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1982).

NPPES Registry Identity

NPI1144257312
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM M GAMBRELL IIICredential: M.D.
Location Address1236 E ELIZABETH ST STE 1Fort Collins, CO 80524-4000
Mailing Address1236 E Elizabeth St Ste 1Fort Collins, CO 80524-4000 · (970) 224-2985 · Fax (970) 472-9381
Phone(970) 224-2985
Fax(970) 472-9381
Sole ProprietorNo
Medical School CMSOtherGraduated 1982
Enumeration DateJune 26, 2006
Last NPPES UpdateDecember 4, 2017
✔ NPI 1144257312 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CO · DR.0039094
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.
1236 E ELIZABETH ST STE 1, Fort Collins, CO 80524
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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

William M Gambrell Iii M.d. 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 ID5193741056
PECOS Enrollment IDI20051019001128
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 William Gambrell reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northern Colorado Anesthesia Professionals PLLC
2.7 mi
Anesthesiology
3702 AUTOMATION WAY STE 103
Fort Collins, CO 80525
  • Reassigned Medicare billing, Colorado enrollment
  • 250 clinicians in this Medicare group
NPI 1851389613 (970) 224-2985
Boulder Valley Anesthesiology, PLLC
40 mi
Anesthesiology
4747 ARAPAHOE AVE
Boulder, CO 80303
  • Reassigned Medicare billing, Colorado enrollment
  • 93 clinicians in this Medicare group
NPI 1962431668 (303) 415-7000

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 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHAD BUTLER CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
MATTHEW R HARLOW CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
MARIE THERESA SCHAPER CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
YU-HSIN CHANG
Music Therapist
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 829-1039
LORREN HUDSON RN, CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
LINDSEY HANYZEWSKI CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
BLAKE JACKMAN PULVER CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985
JEFFREY S THOMPSON CRNA
Nurse Anesthetist, Certified Registered
1236 E ELIZABETH ST STE 1
FORT COLLINS, CO 80524
Larimer County (970) 224-2985

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 William Gambrell's NPI number?

The NPI number for William Gambrell is 1144257312. It was assigned to this individual provider in the NPPES registry on June 26, 2006.

Where is William Gambrell located?

William Gambrell practices at 1236 E Elizabeth St Ste 1, Fort Collins, CO 80524. The listed phone number is (970) 224-2985.

What is William Gambrell's specialty?

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

Is William Gambrell enrolled in Medicare?

Yes. William Gambrell 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 William Gambrell's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Gambrell reassigns Medicare benefits to 2 organizations: Northern Colorado Anesthesia Professionals PLLC (Fort Collins, CO) and Boulder Valley Anesthesiology, PLLC (Boulder, 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 William Gambrell'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 William Gambrell was last updated on December 4, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.