CLARK WILLIAM WALKER M.D.
NPI 1508956699
Otolaryngology in Lone Tree, CO

Q: What is Clark Walker's NPI number?

The NPI number for Clark Walker is 1508956699. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Q: What is Clark Walker's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Q: When was this NPI record last updated?

The NPPES record for Clark Walker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 October 13, 2006

0/100

CMS Quality Rating

10099 RIDGEGATE PKWY, SUITE 230, LONE TREE, CO 80124(303) 706-1616(303) 706-0177 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Clark William Walker M.d. NPPES

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

CLARK WILLIAM WALKER M.D. (NPI 1508956699) is an individual otolaryngology provider in Lone Tree, Colorado, licensed in Colorado (43076) and active in the NPI registry since October 2006.

NPPES Registry Identity

NPI1508956699

Entity TypeIndividualMale

Primary Taxonomy207Y00000X

Provider Legal NameCLARK WILLIAM WALKERCredential: M.D.

Location Address10099 RIDGEGATE PKWY, SUITE 230Lone Tree, CO 80124-5531

Mailing Address10099 Ridgegate Pkwy, Suite 230Lone Tree, CO 80124-5531 · (303) 706-1616 · Fax (303) 706-0177

Phone(303) 706-1616

Fax(303) 706-0177

Sole ProprietorNo

Enumeration DateOctober 13, 2006

Last NPPES UpdateJuly 8, 2007

✔ NPI 1508956699 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOtolaryngologyAllopathic & Osteopathic Physicians

Taxonomy Code207Y00000X

License✔ Licensed in CO · 43076

Definition

An otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures of the head and neck. An otolaryngologist diagnoses and provides medical and/or surgical therapy or prevention of diseases, allergies, neoplasms, deformities, disorders and/or injuries of the ears, nose, sinuses, throat, respiratory and upper alimentary systems, face, jaws and the other head and neck systems. Head and neck oncology, facial plastic and reconstructive surgery and the treatment of disorders of hearing and voice are fundamental areas of expertise.

10099 RIDGEGATE PKWY, Lone Tree, CO 80124

Open in Google Maps ↗

Other Identifiers 3

Medicare UPINI24212CO

Medicaid00172766CO

Medicare ID-Type Unspecified800778CO

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Clark William Walker M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

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

Integrated Ear, Nose And Throat, P.C.

0.3 mi

Otolaryngology

9960 SKY RIDGE AVE
Lone Tree, CO 80124

Reassigned Medicare billing, Colorado enrollment
Medicare enrollment name: Integrated Ear Nose And Throat PC
6 clinicians in this Medicare group

NPI 1063624195 (303) 706-1616

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 14

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.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

622 services21 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

348 services17 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

192 services133 patients

Removal of impacted ear wax 69210

Impacted ear wax removal is a safe procedure to clear blockages in the ear canal caused by hardened ear wax. A healthcare professional uses specialized tools or a gentle irrigation method to loosen and remove the wax, improving hearing and alleviating discomfort.

82 services59 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

62 services50 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

60 services53 patients

Comprehensive hearing and speech recognition test 92557

A comprehensive hearing and speech recognition test assesses your ability to hear and understand spoken words. It includes hearing tests to check for issues with sound perception and speech tests to evaluate your word recognition. It's a crucial step in identifying any hearing or speech problems.

56 services53 patients

Test to assess middle ear function 92567

A test to assess middle ear function, also known as an impedance audiometry, helps evaluate how well your middle ear works. It measures the movement of your eardrum in response to changes in air pressure. This can help identify issues like fluid build-up, ear infections, or eardrum perforations.

56 services53 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

55 services55 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

34 services30 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

27 services27 patients

Diagnostic exam of nasal passages using an endoscope 31231

A diagnostic exam of nasal passages using an endoscope is a non-invasive procedure. A small, flexible tube with a light and camera at the end, called an endoscope, is inserted into the nose. This allows the doctor to view the nasal passages and sinuses, helping to identify any issues.

26 services24 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

17 services16 patients

Diagnostic exam of voice box using a flexible endoscope 31575

This procedure involves a doctor examining your voice box using a flexible endoscope, a thin tube with a light and camera. It's inserted through your nose or mouth to visualize your throat area. It helps detect any abnormalities in your voice box, ensuring optimal vocal health.

16 services16 patients

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.

0/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

Improvement Activities

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.

COLORADO ENDOCRINOLOGY, THYROID AND DIABETES CONSULTANTS, P.C.

Internal Medicine (Endocrinology, Diabetes & Metabolism)

10099 RIDGEGATE PKWY, SUITE 480
LONE TREE, CO 80124

Douglas County (303) 790-2400

PHOENIX NEUROMONITORING

Specialist/Technologist, Other

10099 RIDGEGATE PKWY, SUITE 480
LONE TREE, CO 80124

Douglas County (303) 801-8136

JOSEPH LAWRENCE DAVIS

Student in an Organized Health Care Education/Training Program

10099 RIDGEGATE PKWY
LONE TREE, CO 80124

Douglas County (720) 875-2880

TAMMI H. SCHAEFFER, DO PC

Emergency Medicine (Medical Toxicology)

10099 RIDGEGATE PKWY, SUITE 220
LONE TREE, CO 80124

Douglas County (303) 815-1960

SANFORD ELDON AVNER M.D.

Allergy & Immunology

10099 RIDGEGATE PKWY, STE. #400
LONE TREE, CO 80124

Douglas County (303) 706-9923

SOUTHEAST FAMILY PHYSICIANS

Family Medicine

10099 RIDGEGATE PKWY, SUITE 340
LONE TREE, CO 80124

Douglas County (303) 706-0400

DR. CYNTHIA G KRISTENSEN MD

Internal Medicine (Nephrology)

10099 RIDGEGATE PKWY, STE 310
LONE TREE, CO 80124

Douglas County (303) 327-4700

SKY RIDGE SURGERY CENTER LP

Clinic/Center (Ambulatory Surgical)

10099 RIDGEGATE PKWY, SUITE 100
LONE TREE, CO 80124

Douglas County (720) 225-5000

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 Clark Walker's NPI number?

The NPI number for Clark Walker is 1508956699. It was assigned to this individual provider in the NPPES registry on October 13, 2006.

Where is Clark Walker located?

Clark Walker practices at 10099 Ridgegate Pkwy Suite 230, Lone Tree, CO 80124. The listed phone number is (303) 706-1616.

What is Clark Walker's specialty?

The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.

Is Clark Walker enrolled in Medicare?

Yes. Clark Walker is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Clark Walker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clark Walker reassigns Medicare benefits to Integrated Ear, Nose And Throat, P.C. (Lone Tree, 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 Clark Walker'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 Clark Walker was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.