NATHAN W WILLIAMS
NPI 1346377355
Anesthesiology in Grand Junction, CO

Q: What is Nathan Williams's NPI number?

The NPI number for Nathan Williams is 1346377355. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Q: What is Nathan Williams's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Nathan Williams was last updated on February 17, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.

Active since February 27, 2007PECOS EnrolledAccepts Medicare Assignment

2635 N 7TH ST, GRAND JUNCTION, CO 81501(970) 244-2506 Get Directions Write a Review

NPPES record last updated: February 17, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Nathan W Williams NPPES

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

NATHAN W WILLIAMS (NPI 1346377355) is an individual anesthesiology provider in Grand Junction, Colorado, licensed in Colorado (42424) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Colorado School Of Medicine, Denver (2004).

NPPES Registry Identity

NPI1346377355

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameNATHAN W WILLIAMS

Location Address2635 N 7TH STGrand Junction, CO 81501-8209

Mailing Address1120 Wellington Ave Ste 206Grand Junction, CO 81501-6131 · (970) 243-7245

Phone(970) 244-2506

Sole ProprietorNo

Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 2004

Enumeration DateFebruary 27, 2007

Last NPPES UpdateFebruary 17, 2010

✔ NPI 1346377355 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CO · 42424

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.

2635 N 7TH ST, Grand Junction, CO 81501

Open in Google Maps ↗

Other Identifiers 3

Medicare PINCO305263

Other015303Kaiser-commercial Number

Medicaid02181347CO

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

Nathan W Williams 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 ID8527048628

PECOS Enrollment IDI20040721000046

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

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

Intermountain Medical Group Grand Junction, LLC

Same address

Nephrology

2635 N 7TH ST STE 20
Grand Junction, CO 81501

Reassigned Medicare billing, Colorado enrollment
438 clinicians in this Medicare group

NPI 1285248054 (970) 298-7106

Anesthesia Consultants Of Western Colorado LLC

Same address

Anesthesiology

2635 N 7TH ST
Grand Junction, CO 81501

Reassigned Medicare billing, Colorado enrollment
32 clinicians in this Medicare group

NPI 1437112273 (970) 298-2273

San Juan Anesthesia PLLC

56 mi

Anesthesiology

800 S 3RD ST
Montrose, CO 81401

Reassigned Medicare billing, Colorado enrollment
12 clinicians in this Medicare group

NPI 1255380069 (970) 249-2211

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 6

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.

Insertion of artery tube for blood sampling or infusion through skin 36620

This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.

43 services43 patients

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.

22 services21 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

21 services21 patients

Insertion of tube in pulmonary artery for monitoring 93503

This procedure involves placing a tube into your pulmonary artery, which is a blood vessel in your lungs. The tube helps monitor heart function and blood flow, providing vital information for your treatment. It's typically done under local anesthesia to minimize discomfort.

13 services13 patients

Anesthesia for procedure on heart and large blood vessels 00560

Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.

11 services11 patients

Injection of local anesthetic for abdominal wall pain control on both sides using imaging guidance 64488

This procedure involves injecting a local anesthetic into the abdominal wall to manage pain. It's carried out on both sides of the abdomen using imaging guidance for precision. This helps numb the area, providing relief from discomfort.

11 services11 patients

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.

MURRAY THIESSEN

Physical Therapist