William Marr, PA-C
NPI 1992801179 · Medical Physician Assistant · Durango, CO
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Marr, PA-C is a Medical Physician Assistant provider in Durango, CO (NPI 1992801179).
Provider details
- NPI number
- 1992801179
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- PA01678 (TX)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
322 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 134 | $94 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $68 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 23 | $83 |
| Automated Urinalysis Test81003 | 22 | $2 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 20 | $142 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 67 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 237 | 119 |
| Amlodipine Besylate | 204 | 100 |
| Lisinopril | 168 | 96 |
| Levothyroxine Sodium | 126 | 68 |
| Losartan Potassium | 108 | 56 |
| Rosuvastatin Calcium | 93 | 50 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1209 Highway 35 NRockport, TX 78382-4808Phone: (361) 729-9811Fax: (361) 729-9819
Registry dates
- Enumerated
- 2006-09-15
- Last updated
- 2025-03-04
- Certified
- 2025-03-04
Frequently asked questions
- What is William Marr's NPI number?
- William Marr's National Provider Identifier (NPI) is 1992801179, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Marr's specialty?
- William Marr is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Marr located?
- William Marr's practice location on file with NPPES is 810 E 3rd St Unit 201, Durango, CO 81301-5759.
- What is William Marr's phone number?
- The practice phone number listed in the NPPES registry for William Marr is (970) 764-1790.
- Does William Marr accept Medicare?
- William Marr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Marr's NPI active?
- Yes — William Marr's NPI (1992801179) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.