DR. THOMAS DALE JOHNSON M.D. NPI 1639168685

NPI Details

DR. Thomas Dale Johnson, M.D. is a gastroenterology internal medicine in Nevada, IA with 42 years of experience. The provider is an internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs. DR. Thomas Dale Johnson, M.D. NPI is 1639168685. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: UNIVERSITY OF ILLINOIS COLLEGE OF MED (CHI/PEOR/ROCK/CHM-URB)
Graduation Year:1984

The provider's business location address is:

1102 DAKOTA CT
NEVADA, IA
ZIP 50201-966
Phone: (515) 296-2041

The NPI 1639168685 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

• Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS:G0500)
• Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS:45385)
• Follow-up hospital inpatient care per day, typically 25 minutes (HCPCS:99232)
• Insertion of needle into vein for collection of blood sample (HCPCS:36415)
• Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS:G0105)
• Established patient office or other outpatient visit, 20-29 minutes (HCPCS:99213)
• Initial hospital inpatient care per day, typically 50 minutes (HCPCS:99222)
• Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS:43235)
• Biopsy of large bowel using a flexible endoscope (HCPCS:45380)
• Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS:43239)
• Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk (HCPCS:G0121)
• New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)
• Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS:85025)
• Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm (HCPCS:43249)
• Liver function blood test panel (HCPCS:80076)
• Established patient office or other outpatient visit, 30-39 minutes (HCPCS:99214)
• Follow-up hospital inpatient care per day, typically 15 minutes (HCPCS:99231)
• Insertion of guide wire with dilation of esophagus using a flexible endoscope (HCPCS:43248)
• Liver enzyme (sgpt), level (HCPCS:84460)
• Blood test, clotting time (HCPCS:85610)
• Diagnostic exam of large bowel using a flexible endoscope (HCPCS:45378)
• Blood test, comprehensive group of blood chemicals (HCPCS:80053)
• Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS:43255)
• Colonoscopy (HCPCS:NAN13)
• Upper gastrointestinal (GI) endoscopy for acid reflux (HCPCS:NAN12)

The enumeration date for this NPI number is 10/20/2005 and was last updated on 8/7/2025.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

Other Identifiers

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