Where to find Theodoros Voloyiannis, M.D.
- Houston location main office
7400 Fannin St Ste 1295, Houston, TX 77054 - Webster location
400 W Medical Center Blvd Ste 205, Webster, TX 77598
About Dr. Voloyiannis
Theodoros Voloyiannis, M.D. practices colorectal surgery (proctology) in Houston, TX. Theodoros is also listed as specializing in colon & rectal surgery. According to Medicare claims data, Theodoros cared for 311 Medicare patients across 333 services. The services billed most often include diagnostic exam of rectum and lower large bowel using an endoscope, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more. The provider's National Provider Identifier (NPI) is 1891911228.
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
- (832) 377-3770
- Email not available
Practice Locations
7400 FANNIN ST STE 1295
Houston, TX 77054
400 W Medical Center Blvd Ste 205
Webster, TX 77598
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
Most searched conditions
Anorectal conditions
Anorectal disorders
Bowel disorders
- Bowel Blockage in Babies
- Chronic diarrhea
- Constipation From Pain Medicine
- Difficulty Emptying Bowels
- Severely Enlarged Colon
- Twisted Bowel
Bowel symptoms
Cancer
Colon conditions
Digestive emergencies
Infections
Infections & cysts
Inflammatory bowel disease
Inflammatory conditions
Ostomy & surgical complications
Pain
Pelvic disorders
Pelvic floor & structure
Skin conditions
Tumors & growths
Vascular & inflammatory
Procedures & services
Most searched procedures
Abdominal surgery
Anorectal procedures
Bowel management
Cancer screening
Cancer surgery
Diagnostic tests
Diagnostics
Digestive health
Endoscopy & minimally invasive
Excision & drainage
Fistula procedures
Hemorrhoid treatments
Inflammatory bowel surgery
Injections & pain relief
Minimally invasive surgery
Ostomy surgery
Pelvic floor & prolapse
Pelvic therapy
Reconstructive surgery
Therapy & rehabilitation
Procedures Most Often Billed to Medicare
333 services · 311 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of rectum and lower large bowel using an endoscope | Procedure | 45300 |
71 | More often than most peers in Colorectal Surgery (Proctology) |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
24 | Less often than most peers in Colorectal Surgery (Proctology) |
| Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery | Procedure | 45384 |
18 | As often as other peers in Colorectal Surgery (Proctology) |
| Partial removal of large bowel and reattachment to rectum using an endoscope | Procedure | 44207 |
13 | As often as other peers in Colorectal Surgery (Proctology) |
| Tying of multiple internal hemorrhoid groups | Procedure | 46946 |
11 | Too few peers to compare |
| Injection of agent into vein to assess blood flow of skin graft or flap | Procedure | 15860 |
11 | Less often than most peers in Colorectal Surgery (Proctology) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
54 | As often as other peers in Colorectal Surgery (Proctology) |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
38 | More often than most peers in Colorectal Surgery (Proctology) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 | As often as other peers in Colorectal Surgery (Proctology) |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
26 | As often as other peers in Colorectal Surgery (Proctology) |
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.
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 surgery specialists in Houston 8
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1998 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of rectum and lower large bowel using an endoscope 7
Providers in TX who bill this service to Medicare most often.
Common questions
What is Theodoros Voloyiannis's specialty?
Theodoros Voloyiannis is a colorectal surgery (proctology) in Houston, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Theodoros Voloyiannis?
Theodoros Voloyiannis is listed at 7400 Fannin St Ste 1295, Houston, TX 77054. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Theodoros Voloyiannis?
The number on file is (832) 377-3770. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Theodoros Voloyiannis's NPI number?
Theodoros Voloyiannis's National Provider Identifier is 1891911228. 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 Theodoros Voloyiannis's education?
Theodoros Voloyiannis attended Other, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Theodoros Voloyiannis been practicing?
Theodoros Voloyiannis has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What is Theodoros Voloyiannis known for?
According to Medicare billing data, Theodoros Voloyiannis performs procedures including diagnostic exam of rectum and lower large bowel using an endoscope, diagnostic exam of anus using an endoscope and removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Theodoros Voloyiannis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Theodoros Voloyiannis. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.