Doctor profile · Federal record

Dr. William Summers, MD

Internal Medicine Physician (CMS: Internal Medicine) · Infectious Disease Physician · Infectious Disease Physician · Saint Louis, MO

  • NPI 1265471650
  • Accepts Medicare
  • 27 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
3915 Watson RD Ste 202
Saint Louis, MO 631091251
(314) 244-3818
fax (888) 464-1108
Additional location
6188 MacKenzie Valley CT
Saint Louis, MO 631233477
(314) 686-9714

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
May 31, 2024
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
Missouri #2007010580 · Tennessee #39419
Medicaid (5)
MS #09016197 · TN #3327876 · MO #204589808 · TN #3721649 · MS #09752214

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265471650. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
563
Distinct HCPCS
8
Medicare allowed
$59,704
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 310 94 $124
81002 Urinalysis, manual test 67 50 $3
99205 New patient office or other outpatient visit, 60-74 minutes 46 46 $215
99215 Established patient office or other outpatient visit, 40-54 minutes 39 33 $175
99213 Established patient office or other outpatient visit, 20-29 minutes 33 24 $88
90686 Influenza vaccine, quadrivalent, preservative free, 0.5 ml dosage 27 27 $22
G0008 Administration of influenza virus vaccine 27 27 $30
36415 Insertion of needle into vein for collection of blood sample 14 14 $8

In context: peer comparison

Among 216 peers in this city , average services per provider: 171. This provider delivers 3.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$6,125
Transactions
69
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Gilead Sciences, Inc. 27 $5,493.37
ViiV Healthcare Company 18 $209.36
AstraZeneca Pharmaceuticals LP 9 $161.89
Novo Nordisk Inc 6 $107.69
GlaxoSmithKline, LLC. 3 $46.62
Abbott Laboratories 1 $27.99
EMD Serono, Inc. 1 $16.21
Lundbeck LLC 1 $15.76
Lilly USA, LLC 1 $15.74
ABBVIE INC. 1 $15.53
Antares Pharma, Inc. 1 $14.57

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$4,960
Food and Beverage
$1,165

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,503
Patients
579
Total drug cost
$3,402,172
Drug Type Claims Patients Total cost
Biktarvy (Bictegrav/Emtricit/Tenofov Ala) Brand 819 110 $3,358,808
Rosuvastatin Calcium Generic 277 47 $5,349
Alprazolam Generic 251 37 $1,694
Amlodipine Besylate Generic 247 45 $1,817
Omeprazole Generic 233 42 $3,123
Atorvastatin Calcium Generic 232 51 $2,211
Tamsulosin Hcl Generic 210 33 $3,159
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 203 35 $5,253
Gabapentin Generic 188 30 $2,890
Escitalopram Oxalate Generic 172 27 $2,254

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Summers's medical specialty?
Dr. William Summers practices Internal Medicine Physician in Saint Louis, MO.
Where does Dr. William Summers practice?
Dr. William Summers practices at 3915 Watson RD Ste 202, Saint Louis, MO 631091251. Office phone: 3142443818.
What is Dr. William Summers's NPI?
Dr. William Summers's National Provider Identifier (NPI) is 1265471650, issued by NPPES.
Does Dr. William Summers accept Medicare assignment?
Yes. Dr. William Summers accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Summers commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Urinalysis, manual test (HCPCS 81002); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.