Doctor profile · Federal record

Dr. Donald Kastens, MD

Gastroenterology Physician (CMS: Gastroenterology) · Oklahoma City, OK

  • NPI 1659349801
  • Accepts Medicare
  • MIPS 71.7 / 100 · 2023
  • 45 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
825 Ne 10Th St, Oupb 2300
Oklahoma City, OK 731045417
(405) 271-8478
Mailing address
920 Sl Young Blvd, Wp1345
Oklahoma City, OK 731045033

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
January 18, 2011
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Oklahoma #13770

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1659349801. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
466
Distinct HCPCS
10
Medicare allowed
$44,392
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 78 54 $76
G0500 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 78 58 $5
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 54 27 $150
45380 Biopsy of large bowel using a flexible endoscope 41 41 $96
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 39 38 $72
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 36 36 $125
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 30 30 $217
99213 Established patient office or other outpatient visit, 20-29 minutes 29 24 $63
99214 Established patient office or other outpatient visit, 30-39 minutes 25 24 $91
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 17 15 $115

In context: peer comparison

Among 31 peers in this city , average services per provider: 48. This provider delivers 9.7× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$118
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Madrigal Pharmaceuticals 1 $117.92

By nature of payment

Food and Beverage
$118

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
177
Patients
102
Total drug cost
$9,039
Drug Type Claims Patients Total cost
Gavilyte-C (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 53 52 $940
Omeprazole Generic 45 0 $2,814
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 18 18 $1,415
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 17 17 $292
Pantoprazole Sodium Generic 17 0 $254
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 15 15 $327
Lubiprostone Generic 12 0 $2,997

Frequently asked questions

Auto-generated from federal data
What is Dr. Donald Kastens's medical specialty?
Dr. Donald Kastens practices Gastroenterology Physician in Oklahoma City, OK.
Where does Dr. Donald Kastens practice?
Dr. Donald Kastens practices at 825 Ne 10Th St, Oklahoma City, OK 731045417. Office phone: 4052718478.
What is Dr. Donald Kastens's NPI?
Dr. Donald Kastens's National Provider Identifier (NPI) is 1659349801, issued by NPPES.
Does Dr. Donald Kastens accept Medicare assignment?
Yes. Dr. Donald Kastens accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Donald Kastens commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); 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); Insertion of guide wire with dilation of esophagus using a flexible endoscope (HCPCS 43248). Source: CMS Medicare Physician & Other Practitioners file.