Doctor profile · Federal record

Dr. William Marr, PA-C

Medical Physician Assistant (CMS: Physician Assistant) · Physician Assistant · Durango, CO

  • NPI 1992801179
  • Accepts Medicare
  • 30 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
810 E 3Rd St Unit 201
Durango, CO 813015759
(970) 764-1790
fax (970) 375-7927
Additional location
1209 Highway 35 N
Rockport, TX 783824808
(361) 729-9811
fax (361) 729-9819
Mailing address
Po Box 802793
Kansas City, MO 641802793

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
March 4, 2025
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
363AM0700X — NUCC code
State licenses (2)
Colorado #PA.0008209 · Texas #PA01678

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992801179. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
501
Distinct HCPCS
10
Medicare allowed
$46,192
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 180 104 $104
99213 Established patient office or other outpatient visit, 20-29 minutes 88 67 $74
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 60 60 $105
G0008 Administration of influenza virus vaccine 40 40 $30
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 33 33 $283
G0009 Administration of pneumococcal vaccine 31 31 $30
90694 Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage 23 23 $76
90674 Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free 19 19 $33
99212 Established patient office or other outpatient visit, 10-19 minutes 14 14 $46
G0444 Annual depression screening, 5 to 15 minutes 13 13 $15

In context: peer comparison

Among 5 peers in Durango Medical Physician Assistant, average services per provider: 55. This provider delivers 9.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$17
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Amgen INC. 1 $16.54

By nature of payment

Food and Beverage
$17

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,798
Patients
1,297
Total drug cost
$32,695
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 547 192 $5,615
Lisinopril Generic 414 138 $2,429
Amlodipine Besylate Generic 397 120 $1,320
Levothyroxine Sodium Generic 353 102 $3,778
Losartan Potassium Generic 226 78 $2,467
Metoprolol Succinate Generic 217 73 $3,169
Gabapentin Generic 209 78 $4,193
Rosuvastatin Calcium Generic 197 77 $2,700
Omeprazole Generic 196 63 $1,581
Metformin Hcl Generic 194 62 $1,024

Frequently asked questions

Auto-generated from federal data
What is Dr. William Marr's medical specialty?
Dr. William Marr practices Medical Physician Assistant in Durango, CO.
Where does Dr. William Marr practice?
Dr. William Marr practices at 810 E 3Rd St Unit 201, Durango, CO 813015759. Office phone: 9707641790.
What is Dr. William Marr's NPI?
Dr. William Marr's National Provider Identifier (NPI) is 1992801179, issued by NPPES.
Does Dr. William Marr accept Medicare assignment?
Yes. Dr. William Marr accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Marr commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.