MR. WILLIAM LEWIS MARR IV PA-C
NPI 1992801179
Physician Assistant - Medical in Durango, CO

Active since September 15, 2006PECOS EnrolledAccepts Medicare Assignment
810 E 3RD ST UNIT 201, DURANGO, CO 81301(970) 764-1790(970) 375-7927 Get Directions Write a Review

NPPES record last updated: March 4, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 4, 2025, Oct 23, 2023, Dec 13, 2021 and 1 more (4 updates tracked since 2020).

About Mr. William Lewis Marr Iv Pa-c NPPES

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

MR. WILLIAM LEWIS MARR IV PA-C (NPI 1992801179) is an individual medical provider in Durango, Colorado, licensed in Colorado (PA.0008209) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Rockport, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1992801179
Entity TypeIndividualMale
Primary Taxonomy363AM0700X
Provider Legal NameMR. WILLIAM LEWIS MARR IVCredential: PA-C
Location Address810 E 3RD ST UNIT 201Durango, CO 81301-5759
Mailing AddressPo Box 802793Kansas City, MO 64180-2793 · (800) 953-0104
Fax(970) 375-7927
Sole ProprietorNo
Medical School CMSOtherGraduated 1996
Enumeration DateSeptember 15, 2006
Last NPPES UpdateMarch 4, 20254 updates tracked since enumeration
NPPES CertifiedMarch 4, 2025
NPI 1992801179 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPhysician Assistant · MedicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AM0700X
License Licensed in CO · PA.0008209
Also ListedPhysician AssistantTaxonomy 363A00000X · License PA01678 (TX)
810 E 3RD ST UNIT 201, Durango, CO 81301

Secondary Practice Location 1

Location 11209 Highway 35 NRockport, TX 78382-4808 · Phone (361) 729-9811 · Fax (361) 729-9819

Other Identifiers 1

OtherPA01678TX · Pa State License

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mr. William Lewis Marr Iv Pa-c 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 ID8325049646
PECOS Enrollment IDI20231111000703
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.

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.

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.
134 services109 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.
107 services88 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
23 services23 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
22 services16 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.
20 services20 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.
16 services16 patients

Referred Medical Equipment & Supplies CMS DME claims 5

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers13 claims32 services$5.36 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
3 suppliers11 claims12 services$1.04 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
1 supplier11 claims11 services$16.91 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier13 claims13 services$94.49 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier12 claims12 services$214.04 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 7

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

Family Medicine
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Internal Medicine
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Physician Assistant (Medical)
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Family Medicine
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Nurse Practitioner (Primary Care)
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Internal Medicine
810 E 3RD ST UNIT 201
DURANGO, CO 81301
Dietitian, Registered
810 E 3RD ST UNIT 201
DURANGO, CO 81301

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 Marr's NPI number?

The NPI number for William Marr is 1992801179. It was assigned to this individual provider in the NPPES registry on September 15, 2006.

Where is William Marr located?

William Marr practices at 810 E 3rd St Unit 201, Durango, CO 81301. The listed phone number is (970) 764-1790.

What is William Marr's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Medical, with taxonomy code 363AM0700X.

Is William Marr enrolled in Medicare?

Yes. William Marr 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.

What insurance does William Marr accept?

Health plans from University of Utah Health Plans list William Marr as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for William Marr was last updated on March 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.