Doctor profile · Federal record

Dr. Marc Williams, PA

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

  • NPI 1659542926
  • Accepts Medicare
  • 28 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1600 N Grand Ave Ste 310
Pueblo, CO 810032729
(719) 542-0072
fax (719) 542-9888

Credentials & registration

NPPES · NUCC
NPI registered
March 2008 — 18 yrs on file
Year of graduation
1998 — 28 yrs since
Specialty taxonomy
363AM0700X — NUCC code
State license (1)
Colorado #1095

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659542926. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$603
Transactions
30
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Astellas Pharma US Inc 4 $94.10
ABBVIE INC. 4 $84.29
Novo Nordisk Inc 5 $81.72
PFIZER INC. 2 $43.22
Amgen Inc. 2 $38.29
Sumitomo Pharma America, Inc. 2 $36.64
Lilly USA, LLC 2 $36.07
CeQur Corporation 1 $31.54
Exact Sciences Corporation 2 $29.83
Mylan Specialty L.P. 1 $24.62
AstraZeneca Pharmaceuticals LP 1 $24.38
GlaxoSmithKline, LLC. 1 $22.73
Takeda Pharmaceuticals U.S.A., Inc. 1 $21.50
ITI, Inc. (d/b/a Intra-Cellular Therapies, Inc.) 1 $17.10
Grifols USA, LLC 1 $16.66

By nature of payment

Food and Beverage
$603

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,241
Patients
544
Total drug cost
$17,162
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 135 46 $2,252
Losartan Potassium Generic 131 51 $1,930
Amlodipine Besylate Generic 125 51 $811
Atorvastatin Calcium Generic 119 54 $1,600
Rosuvastatin Calcium Generic 97 42 $1,688
Metformin Hcl Er (Metformin Hcl) Brand 94 39 $1,531
Omeprazole Generic 84 36 $1,172
Lisinopril Generic 67 27 $425
Tamsulosin Hcl Generic 67 26 $1,399
Prednisone Generic 60 45 $172

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc Williams's medical specialty?
Dr. Marc Williams practices Medical Physician Assistant in Pueblo, CO.
Where does Dr. Marc Williams practice?
Dr. Marc Williams practices at 1600 N Grand Ave Ste 310, Pueblo, CO 810032729. Office phone: 7195420072.
What is Dr. Marc Williams's NPI?
Dr. Marc Williams's National Provider Identifier (NPI) is 1659542926, issued by NPPES.
Does Dr. Marc Williams accept Medicare assignment?
Yes. Dr. Marc Williams accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.