Doctor profile · Federal record

Dr. Mafaza Khan, MD

Internal Medicine Physician (CMS: Internal Medicine) · Saint Louis, MO

  • NPI 1275161796
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
615 S New Ballas RD
Saint Louis, MO 631418221
(314) 251-6339
Additional location
10010 Kennerly RD
Saint Louis, MO 631282106
(314) 525-1328
Additional location
1400 US Highway 61
Festus, MO 630284100
(636) 933-5337
Show 1 more location
Additional location
901 E 5Th St
Washington, MO 630903127
(636) 239-8231
Mailing address
621 S New Ballas RD Ste 112A
Saint Louis, MO 631418252

Credentials & registration

NPPES · NUCC
NPI registered
March 2020 — 6 yrs on file
Profile last updated
September 11, 2023
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Missouri #2023010200

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1275161796. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
212
Distinct HCPCS
4
Medicare allowed
$21,069
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 108 59 $77
99239 Hospital discharge day management, more than 30 minutes 46 45 $111
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 41 23 $116
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 17 17 $169

In context: peer comparison

Among 216 peers in Saint Louis Internal Medicine Physician, average services per provider: 171. This provider delivers 1.2× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
29
Patients
0
Total drug cost
$308
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 17 0 $251
Warfarin Sodium Generic 12 0 $56

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mafaza Khan's medical specialty?
Dr. Mafaza Khan practices Internal Medicine Physician in Saint Louis, MO.
Where does Dr. Mafaza Khan practice?
Dr. Mafaza Khan practices at 615 S New Ballas RD, Saint Louis, MO 631418221. Office phone: 3142516339.
What is Dr. Mafaza Khan's NPI?
Dr. Mafaza Khan's National Provider Identifier (NPI) is 1275161796, issued by NPPES.
Does Dr. Mafaza Khan accept Medicare assignment?
Yes. Dr. Mafaza Khan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mafaza Khan commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.