William Lewis Marr, PA-C
Medical Physician Assistant · Durango, CO
William Lewis Marr, PA-C is a medical physician assistant with a practice address in Durango, Colorado, and NPI 1992801179, issued on Sep 15, 2006. Check the license (Colorado PA.0008209, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Lewis Marr
- Credential
- PA-C
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- License numbers
- PA.0008209 CO
PA01678 TX
Self-reported in NPPES; status is on the state search - Practice location
- 810 E 3RD St Unit 201, Durango, CO 81301
- Phone
- (970) 764-1790
- Enumerated
- Sep 15, 2006
- Record last updated
- Mar 4, 2025
- Fax
- (970) 375-7927
- Medicare enrollment
- Enrolled (PECOS I20231111000703); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical physician assistant records → All 1,308 in Colorado → Look up another NPI →
Also registered at 810 E 3RD St Unit 201
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kimberly Ayres, RD LDRegistered Dietitian1669473161
- Charlotte Barry, MDInternal Medicine Physician1518968734
- Micah Helton, M.D.Internal Medicine Physician1194172379
- Shona Jones, NPPrimary Care Nurse Practitioner1417683632
- Holly McCoy, PA-CMedical Physician Assistant1366811366
- Dennis Wales, MDFamily Medicine Physician1376650408
Verify William Lewis Marr in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Colorado board licenses this profession
Search for license PA.0008209Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average medical physician assistant in 2024
3,450 Medicare Part D claims for 721 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 55 claims were for opioids.
Most prescribed
- Atorvastatin Calcium237 claims
- Amlodipine Besylate204 claims
- Lisinopril168 claims
- Levothyroxine Sodium126 claims
- Losartan Potassium108 claims
- Rosuvastatin Calcium93 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $16.54
1 payment: food and beverage; the largest payer was Amgen Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William Lewis Marr among 1,308 medical physician assistant records in Colorado
William Lewis Marr, PA-C is one of 1,308 medical physician assistant records with a practice address in Colorado. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 79% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1996 · median 2014 among the 727 with a school on file
- Record last updated2025 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Physician Assistant providers in Colorado
There are 1,308 medical physician assistant records in Colorado.
All 1,308 in Colorado → Every provider in Durango → Medical Physician Assistant nationwide →
The 8 medical physician assistant records with the nearest ZIP codes
- Nicholas Armano, P.A.Durango, CO 813011588628192
- Stephen Breeding, PA-CDurango, CO 813011164128450
- Patrick Ely, PADurango, CO 813011093124026
- Theresa Gent, PA-CDurango, CO 813011679042410
- Bethany Glotfelty, PA-CDurango, CO 813011356394241
- Erin Hamlin, PADurango, CO 813011275563074
- Maria Housley-Kolter, PADurango, CO 813011588834543
- Kelly Maclaurin, PA-CDurango, CO 813011851842587
Common questions
What is William Lewis Marr, PA-C's NPI number?
William Lewis Marr, PA-C's National Provider Identifier (NPI) is 1992801179, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Lewis Marr, PA-C located?
The NPPES record lists a practice address at 810 E 3RD St Unit 201, Durango, CO, 81301. Phone: (970) 764-1790. Providers update this record themselves, so call before visiting.
How can I verify William Lewis Marr, PA-C's license?
NPPES lists Colorado license number PA.0008209, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.
How much does William Lewis Marr, PA-C prescribe under Medicare Part D?
In 2024, William Lewis Marr, PA-C had 3,450 Medicare Part D claims for 721 beneficiaries; the average among medical physician assistant prescribers was 1,148. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.