Doctor profile · Federal record
Dr. Mark Kiefer, MD
Colon & Rectal Surgery Physician (CMS: Colorectal Surgery (Proctology)) · Surgery Physician · Tulsa, OK
- NPI 1992896567
- Accepts Medicare
- MIPS 87.1 / 100 · 2023
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1705 E 19Th St Ste 502
Tulsa, OK 741045416
(918) 748-7800
fax (918) 403-6349
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- October 2, 2020
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 208C00000X — NUCC code
- State license (1)
- Oklahoma #27205
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1992896567. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
554
Distinct HCPCS
10
Medicare allowed
$84,393
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
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 | 88 | 87 | $5 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 77 | 77 | $69 | |
46600 |
Diagnostic exam of anus using an endoscope | 57 | 49 | $110 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 56 | 56 | $239 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 41 | 32 | $84 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 38 | 17 | $76 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 37 | 37 | $158 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 30 | 13 | $48 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 27 | 27 | $106 | |
44207 |
Partial removal of large bowel and reattachment to rectum using an endoscope | 23 | 23 | $968 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 38. This provider delivers 15× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
82
Patients
79
Total drug cost
$602
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 41 | 38 | $421 |
| Neomycin Sulfate | Generic | 24 | 24 | $153 |
| Metronidazole | Generic | 17 | 17 | $28 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Kiefer's medical specialty?
Dr. Mark Kiefer practices Colon & Rectal Surgery Physician in Tulsa, OK.
Where does Dr. Mark Kiefer practice?
Dr. Mark Kiefer practices at 1705 E 19Th St Ste 502, Tulsa, OK 741045416. Office phone: 9187487800.
What is Dr. Mark Kiefer's NPI?
Dr. Mark Kiefer's National Provider Identifier (NPI) is 1992896567, issued by NPPES.
Does Dr. Mark Kiefer accept Medicare assignment?
Yes. Dr. Mark Kiefer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Kiefer commonly perform?
Top Medicare-reported procedures in 2023: 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); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Diagnostic exam of anus using an endoscope (HCPCS 46600). Source: CMS Medicare Physician & Other Practitioners file.