Doctor profile · Federal record

Dr. Othon Wiltz, M.D.

Colon & Rectal Surgery Physician (CMS: Colorectal Surgery (Proctology)) · Colon & Rectal Surgery Physician · Fairfax, VA

  • NPI 1174525869
  • 41 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3620 Joseph Siewick Dr Ste 406
Fairfax, VA 220331761
(703) 359-8640
fax (703) 591-6105
Mailing address
3620 Joseph Siewick Dr, Suite 406
Fairfax, VA 22033

Credentials & registration

NPPES · NUCC
NPI registered
August 2005 — 21 yrs on file
Profile last updated
July 25, 2017
Year of graduation
1985 — 41 yrs since
Specialty taxonomy
208C00000X — NUCC code
State licenses (2)
Virginia #0101240155 · Puerto Rico #11687
Medicaid
VA #1174525869

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1174525869. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
81
Distinct HCPCS
4
Medicare allowed
$11,924
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 36 20 $137
99204 New patient office or other outpatient visit, 45-59 minutes 17 17 $195
99214 Established patient office or other outpatient visit, 30-39 minutes 15 11 $112
99204 New patient office or other outpatient visit, 45-59 minutes 13 13 $154

In context: peer comparison

Among 3 peers in Fairfax Colon & Rectal Surgery Physician, average services per provider: 37. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$23
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Takeda Pharmaceuticals U.S.A., INC. 1 $23.12

By nature of payment

Food and Beverage
$23

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
12
Patients
11
Total drug cost
$22
Drug Type Claims Patients Total cost
Tramadol Hcl Generic 12 11 $22

Frequently asked questions

Auto-generated from federal data
What is Dr. Othon Wiltz's medical specialty?
Dr. Othon Wiltz practices Colon & Rectal Surgery Physician in Fairfax, VA.
Where does Dr. Othon Wiltz practice?
Dr. Othon Wiltz practices at 3620 Joseph Siewick Dr Ste 406, Fairfax, VA 220331761. Office phone: 7033598640.
What is Dr. Othon Wiltz's NPI?
Dr. Othon Wiltz's National Provider Identifier (NPI) is 1174525869, issued by NPPES.
Does Dr. Othon Wiltz accept Medicare assignment?
Dr. Othon Wiltz does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Othon Wiltz commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.