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William Dierenfeldt in Manhattan, Kansas

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William Dierenfeldt has Gastroenterology as his primary medical specialty. Their primary office is: 1823 College Ave in Manhattan, Kansas. There are 2 additional office locations for William Dierenfeldt that can be viewed towards the end of their profile.

They're a part of the: Cotton O'neil Clinic Revocable Trust medical group which has around 570 members. You can call their office at 785-354-9591 to schedule an appointment. They also accept the Medicare-approved amount as payment in full. They attended University Of Missouri, Kansas City, School Of Medicine and graduated in 1994 (around 30 years of experience). They are not listed as doing telehealth appointments, but this may have changed. It can't hurt to call and check. If anything it may encourage them to make them available if they are not currently.


William T Dierenfeldt Office Phone and Directions

William Dierenfeldt
Cotton O'neil Clinic Revocable Trust
1823 College Ave
Manhattan, Kansas 66502
785-354-9591


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Phone: 785-354-9591


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Healthcare Info for William Dierenfeldt

Medical School: University Of Missouri, Kansas City, School Of Medicine
Graduation Year: 1994
The Primary Medical Specialty for William Dierenfeldt is listed as: Gastroenterology
Approximate Years of Experience: 30
PAC (PECOS ID)#: 6406040146
NPI #: 1477591634
NPI Created On: 06/02/2006
NPI Last Updated Listed as: 07/10/2023
Primary Taxonomy Code: 207RG0100X
License Number:
04-28673
Listed Gender: Male

Insurance, Services, Charges


Forms of insurance accepted by include, but are not limited to:

  • Medica Insurance Company
  • Humana
  • Blue Cross Blue Shield
  • Medicare

They are listed as accepting new patients.

Languages spoken by staff include: English.


Services and Procedures include:

  1. Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope
  2. Biopsy of the esophagus, stomach, and/or upper small bowel using an endoscope
  3. Insertion of guide wire with dilation of esophagus using an endoscope
  4. Balloon dilation of esophagus using an endoscope
  5. Incision of pancreatic outlet muscle using an endoscope
  6. Removal of stone from bile or pancreatic duct using an endoscope
  7. Diagnostic examination of large bowel using an endoscope
  8. Biopsy of large bowel using an endoscope
  9. Removal of polyps or growths of large bowel using an endoscope
  10. Monitoring and recording of gastroesophageal reflux with ph electrode insertion including analysis and interpretation
  11. Measurement of hydrogen in breath to test for gi symptoms
  12. Imaging of digestive tract done from the inside of the digestive tract
  13. New patient office or other outpatient visit, typically 30 minutes
  14. Established patient office or other outpatient visit, typically 15 minutes
  15. Established patient office or other outpatient, visit typically 25 minutes
  16. Initial hospital inpatient care, typically 30 minutes per day
  17. Colorectal cancer screening; colonoscopy on individual at high risk
  18. Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
  19. 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

They took part in the Medicare Physician Quality Reporting System (PQRS).

Additional Office Locations

1. Cotton O'neil Clinic Revocable Trust
1325 Research Park Dr
Manhattan, KS 66502
Group Members: 570

Phone: 785-354-9591

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2. Cotton O'neil Clinic Revocable Trust
901 Sw Garfield Ave
Topeka, KS 66606
Group Members: 570

Phone: 785-354-9591

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Gastroenterology Professionals in Manhattan

1325 Research Park Dr
Manhattan, KS
Cotton O'neil Clinic Revocable Trust

1325 Research Park Dr
Manhattan, KS
Cotton O'neil Clinic Revocable Trust

1133 College Ave
Manhattan, KS
Cotton O'neil Clinic Revocable Trust

1325 Research Park Dr
Manhattan, KS
Cotton O'neil Clinic Revocable Trust

Providers in Cotton O'neil Clinic Revocable Trust

1.Bashar Ababneh

1500 Sw 10th Ave
Topeka Ks 66604-1301
Cotton O'neil Clinic Revocable Trust
Interventional Cardiology

2.Bashar Ababneh

929 Sw Mulvane St
Topeka Ks 66606-1677
Cotton O'neil Clinic Revocable Trust
Interventional Cardiology

3.Hossam Abed

1500 Sw 10th Ave
Topeka Ks 66604-1301
Cotton O'neil Clinic Revocable Trust
Hospitalist

4.Hossam Abed

901 Sw Garfield Ave
Topeka Ks 66606-1670
Cotton O'neil Clinic Revocable Trust
Hospitalist

5.Caroline Abrahamson

1504 Sw 8th Ave
Topeka Ks 66606-1632
Cotton O'neil Clinic Revocable Trust
Qualified Speech Language Pathologist

6.Al Mamon Abu Ghanimah

1500 Sw 10th Ave
Topeka Ks 66604-1301
Cotton O'neil Clinic Revocable Trust
Hospitalist

View all 570 members of Cotton O'neil Clinic Revocable Trust medical group