Dr. Nicolas Athanassiou
- Gender: Male
- Experience: 35 years
- Graduation year: 1986
- Sole propriator: No
- NPI: 1750449831
Dr. Nicolas Athanassiou M.D.
Anesthesiologist
He is located at 1500 Citywest Boulevard Suite 300 in Houston, TX 77042. Can help patients with the following: General Anesthesia, Pain Medication Management, Regional Anesthesia, Sedation. His National Provider Identifier (NPI) number is 1750449831. Appointment can be made via the phone number (713) 620-4000. He is affiliated with 2 practices and 2 hospitals.
Conditions treated
Dr. Nicolas Athanassiou, being an anesthesiologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Nicolas Athanassiou.
- General Anesthesia
- Pain Medication Management
- Regional Anesthesia
- Sedation
Procedures Performed by Dr. Nicolas Athanassiou
ACA Marketplace (Obamacare/HealthCare.gov) plan networks
Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Nicolas Athanassiou as in-network for the following 2026 plans.
Health plans
Oscar Insurance Company
Network data as of Sep 15, 2026, as reported by the insurer.
Show all 12 plans from Oscar Insurance Company
| Plan | Plan type | Network tier | New patients |
|---|---|---|---|
| Bronze Classic 4700 | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Classic Standard | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Elite + PCP Saver Plus | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Breathe Easy with Enhanced COPD Benefits | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Chronic Care CKM | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Bronze Simple Diabetes | EPO · Expanded Bronze | Preferred | Accepting new patients |
| Gold Classic | EPO · Gold | Preferred | Accepting new patients |
| Gold Classic Standard | EPO · Gold | Preferred | Accepting new patients |
| Gold Elite | EPO · Gold | Preferred | Accepting new patients |
| Silver Classic | EPO · Silver | Preferred | Accepting new patients |
| Silver Classic Standard | EPO · Silver | Preferred | Accepting new patients |
| Silver Simple PCP Saver | EPO · Silver | Preferred | Accepting new patients |
This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Nicolas Athanassiou is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.
Medicare Enrollment
Dr. Nicolas Athanassiou is enrolled to bill Medicare as a Practitioner - Anesthesiology .
Bills through: U S Anesthesia Partners Of Texas, Pa
Based on Medicare's public enrollment records as of Sep 29, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.
Payments received
Drug payment
| Pacira Pharmaceuticals | $163 |
| Medtronic | $145 |
| Grifols | $112 |
Other
| Food and Beverage | $954 |
Studies
Graduated in 1986
Looking for more Anesthesiologists?
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- Gender: Male
- Address: 12222 Merit Drive Suite 600 Dallas, 75251, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Female
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Female
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Female
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
- Gender: Male
- Address: Suite 300 1500 Citywest Boulevard Houston, 77042, TX
Questions & Answers
Does Dr. Nicolas Athanassiou have affiliation with practices?
Dr. Nicolas Athanassiou is affiliated with Greater Houston Anesthesiology PA. For the full list of practices see this list.
Has Dr. Nicolas Athanassiou affiliation with hospitals?
Dr. Nicolas Athanassiou is affiliated with HOUSTON METHODIST WEST HOSPITAL. For the full list of hospitals see this list.
Does Dr. Nicolas Athanassiou accept patients with Oscar Insurance Company?
Yes, Dr. Nicolas Athanassiou is listed in-network for Oscar Insurance Company through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.
Where can you meet with Dr. Nicolas Athanassiou?
Dr. Nicolas Athanassiou's office is located at 1500 Citywest Boulevard Suite 300 in Houston, TX 77042.
What conditions does Dr. Nicolas Athanassiou treat?
Dr. Nicolas Athanassiou provides treatment for General Anesthesia, Pain Medication Management, Regional Anesthesia, Sedation.