Doctor profile · Federal record

Dr. Nadia Haj-Ismail

Internal Medicine Physician (CMS: General Practice) · Hospitalist Physician · Student in an Organized Health Care Education/Training Program · Houston, TX

  • NPI 1043743727
  • Accepts Medicare
  • MIPS 81.3 / 100 · 2023
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
5656 Kelley St
Houston, TX 770261967
(713) 566-4489
Additional location
6501 Fannin St Ste Nc100
Houston, TX 770302703
(713) 798-2222
fax (713) 798-0111
Mailing address
5656 Kelley St # 4Bi70001
Houston, TX 770261967

Credentials & registration

NPPES · NUCC
NPI registered
April 2017 — 9 yrs on file
Profile last updated
September 17, 2025
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Texas #R9975

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1043743727. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
43
Distinct HCPCS
2
Medicare allowed
$3,750
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 31 16 $78
99239 Hospital discharge day management, more than 30 minutes 12 11 $110

In context: peer comparison

Among 393 peers in this city , average services per provider: 127. This provider delivers 0.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Nadia Haj-Ismail's medical specialty?
Dr. Nadia Haj-Ismail practices Internal Medicine Physician in Houston, TX.
Where does Dr. Nadia Haj-Ismail practice?
Dr. Nadia Haj-Ismail practices at 5656 Kelley St, Houston, TX 770261967. Office phone: 7135664489.
What is Dr. Nadia Haj-Ismail's NPI?
Dr. Nadia Haj-Ismail's National Provider Identifier (NPI) is 1043743727, issued by NPPES.
Does Dr. Nadia Haj-Ismail accept Medicare assignment?
Yes. Dr. Nadia Haj-Ismail accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nadia Haj-Ismail 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). Source: CMS Medicare Physician & Other Practitioners file.