Are you John K. Hamilton, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileJohn K. Hamilton, M.D. is a healthcare provider in Dallas, TX specializing in gastroenterology. John trained at University of Oklahoma College of Medicine, graduating in 1971. Medicare claims data shows John provided 53 services to 38 patients. The services billed most often include insertion of needle into vein for collection of blood sample and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1033179213.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3417 GASTON AVENUE SUITE 790
Dallas, TX 75246
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
53 services · 38 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
27 | As often as other peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
26 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
John K. Hamilton is a gastroenterologist in Dallas, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
John K. Hamilton is listed at 3417 Gaston Avenue Suite 790, Dallas, TX 75246. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (214) 821-5266. Contact the office directly to confirm availability and scheduling.
NPI registry
John K. Hamilton's National Provider Identifier is 1033179213. 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
John K. Hamilton attended University of Oklahoma College of Medicine, graduating in 1971. This comes from the CMS National Downloadable File.
CMS public data
John K. Hamilton has 55 years experience. Calculated from a graduation year of 1971, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, John K. Hamilton performs procedures including insertion of needle into vein for collection of blood sample, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by John K. Hamilton. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.