Doctor profile · Federal record

Dr. Marek Oferczak, M.D.

Hospitalist Physician (CMS: Hospitalist) · Tulsa, OK

  • NPI 1811301062
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1145 S Utica Ave Ste 460
Tulsa, OK 741044041
(918) 579-5749
fax (918) 579-5762
Mailing address
1145 S Utica Ave, Ste 460
Tulsa, OK 741044041

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
June 21, 2019
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
Oklahoma #32811

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1811301062. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
979
Distinct HCPCS
4
Medicare allowed
$140,466
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 274 144 $113
99205 New patient office or other outpatient visit, 60-74 minutes 273 273 $167
99215 Established patient office or other outpatient visit, 40-54 minutes 234 204 $135
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 198 192 $164

In context: peer comparison

Among 49 peers in Tulsa Hospitalist Physician, average services per provider: 163. This provider delivers 6.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Marek Oferczak's medical specialty?
Dr. Marek Oferczak practices Hospitalist Physician in Tulsa, OK.
Where does Dr. Marek Oferczak practice?
Dr. Marek Oferczak practices at 1145 S Utica Ave Ste 460, Tulsa, OK 741044041. Office phone: 9185795749.
What is Dr. Marek Oferczak's NPI?
Dr. Marek Oferczak's National Provider Identifier (NPI) is 1811301062, issued by NPPES.
Does Dr. Marek Oferczak accept Medicare assignment?
Yes. Dr. Marek Oferczak accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marek Oferczak commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.