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Edit this profileAt a glance
- 3620 Joseph Siewick Dr Ste 406, Fairfax, VA 22033
About Dr. Wiltz
Othon Wiltz, M.D. practices colon & rectal surgery in Fairfax, VA. Othon is a 1985 graduate of Columbia University College of Physicians and Surgeons. Medicare claims data shows Othon provided 57 services to 39 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. The provider's National Provider Identifier (NPI) is 1174525869.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (703) 359-8640
- Email not available
Practice Locations
3620 JOSEPH SIEWICK DR STE 406
Fairfax, VA 22033
Conditions Commonly Evaluated or Treated
Within Colon and Rectal Surgery generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Anorectal conditions
Anorectal disorders
Bowel disorders
- Bowel Blockage in Babies
- Constipation From Pain Medicine
- Difficulty Emptying Bowels
- Severely Enlarged Colon
- Twisted Bowel
- Chronic diarrhea
Bowel symptoms
Cancer
Colon conditions
Inflammatory bowel disease
Inflammatory conditions
Ostomy & bowel
Ostomy & surgical complications
Pain
Pelvic disorders
Skin conditions
Most searched conditions
Digestive emergencies
Infections
Infections & cysts
Pelvic floor & structure
Tumors & growths
Vascular & inflammatory
Procedures & services
Abdominal surgery
Anorectal procedures
Bowel management
Cancer surgery
Diagnostic tests
Diagnostics
Digestive
Endoscopy & minimally invasive
Excision & drainage
Fistula procedures
General surgery
Hemorrhoid treatments
Infection & Microbiology Tests
Inflammatory bowel surgery
Injections & pain relief
Minimally invasive surgery
Ostomy & bowel
Ostomy surgery
Pelvic therapy
Reconstructive surgery
Wound care
Most searched procedures
Cancer screening
Digestive health
Pelvic floor & prolapse
Therapy & rehabilitation
Procedures Most Often Billed to Medicare
57 services · 39 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
43 | More often than most peers in Colon & Rectal Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
14 | Less often than most peers in Colon & Rectal Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 6
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other colorectal surgeons in Fairfax 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Columbia University College of Physicians and Surgeons 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at Columbia University College of Physicians and Surgeons 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Othon Wiltz's specialty?
Othon Wiltz is a colorectal surgeon in Fairfax, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
Where can I find Othon Wiltz?
Othon Wiltz is listed at 3620 Joseph Siewick Dr Ste 406, Fairfax, VA 22033. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Othon Wiltz?
The number on file is (703) 359-8640. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Othon Wiltz?
Othon Wiltz's National Provider Identifier is 1174525869. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Othon Wiltz's education?
Othon Wiltz attended Columbia University College of Physicians and Surgeons, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Othon Wiltz have?
Othon Wiltz has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What is Othon Wiltz known for?
According to Medicare billing data, Othon Wiltz the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Othon Wiltz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Othon Wiltz. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.