What is Theodoros Voloyiannis's specialty?

Theodoros Voloyiannis (NPI 1891911228) is a Medicare-billing provider whose primary specialty is Colorectal Surgery (Proctology) in Houston, TX.

Where does Theodoros Voloyiannis practice?

Theodoros Voloyiannis practices in Houston, TX, based on the location reported in the CMS Medicare provider datasets for NPI 1891911228.

How much does Medicare pay Theodoros Voloyiannis?

Theodoros Voloyiannis (NPI 1891911228) received approximately $121K in total Medicare Part B payments, serving 161 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1891911228

Theodoros VoloyiannisM.D.

Colorectal Surgery (Proctology)Houston, TXI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

311

Unique beneficiaries

—

Total services

333

Distinct HCPCS

Medicare payment

$52K

Peer benchmark

Total Medicare services vs. 159 Colorectal Surgery (Proctology) providers in TX — top quintile (cohort median 395).

PRESCRIBING · PART D · 2024

Total Rx claims

357

Beneficiaries

—

Total drug cost

$12K

Distinct drugs

Brand share

47.3%

Top prescribed drugs

Metronidazole98 claims

Hydrocodone/Acetaminophen77 claims

Neomycin Sulfate72 claims

Sod Picosulf/Mag Ox/Citric Ac50 claims

Sodium, Potassium,mag Sulfates29 claims

QUALITY · MIPS · 2024

Final MIPS score

85.1

Quality

67.5

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.43%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$6K

Payment records

By payment type

Travel and Lodging$2K

Consulting Fee$2K

Food and Beverage$1K

Honoraria$1K

Top paying entities

Travel and Lodging$2K

Consulting Fee$2K

Food and Beverage$1K

Honoraria$1K

REFERRAL NETWORK

Where Theodoros Voloyiannis's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Quest Diagnostics Clinical Laboratories Inc Clinical Laboratory · Houston, TX	28	67
Hyung Kim Anesthesiology · Houston, TX	12	26
Joyce Perkins Certified Registered Nurse Anesthetist (CRNA) · Houston, TX	12	34
SALEH, GEORGES	11	26

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events