Physician Profile

Oscar J. Chastain, MD

Unclaimed Profile

About Dr. Chastain

Oscar J. Chastain, MD is a healthcare provider in Longview, TX specializing in thoracic surgery (cardiothoracic). Oscar trained at Baylor College of Medicine, graduating in 1980. Medicare claims data shows Oscar provided 197 services to 195 patients. The services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.

Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.

Education & Training

Specialty

Thoracic Surgery (Cardiothoracic) (Primary)

Credentials & Licensing

TX licenseF6524
NPI1285635409
NPI issued08/10/2005

License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Dr. Chastain specialize in?

Dr. Chastain is a thoracic surgery (cardiothoracic) in Longview, TX. That is the designation recorded for this NPI in the federal registry.

NPI registry

Where is Dr. Chastain located?

Dr. Chastain is listed at 701 E Marshall Ave Suite 504, Longview, TX 75601. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Chastain's phone number?

The number on file is (903) 315-2777. Guide.md cannot book appointments or pass on messages — please call the office directly.

NPI registry

What is the NPI for Dr. Chastain?

Dr. Chastain's National Provider Identifier is 1285635409. 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

Where did Dr. Chastain go to medical school?

Dr. Chastain attended Baylor College of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Chastain have?

Dr. Chastain has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.

CMS public data

What does Dr. Chastain do most often?

According to Medicare billing data, Dr. Chastain performs procedures including removal of blood clot and portion of chest, neck, or brain artery, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Is Dr. Chastain's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chastain. If this is you, claiming it is free.

Guide.md

Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.