Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ammar Hasan, MD

Individual provider Internal Medicine Physician · NPI 1215596523

Ammar Hasan, MD practises Internal Medicine in Kingwood, Texas. Qualified in 2016, 10 years ago. Practices with Hospital Medicine Services of Tx, PLLC, a 372-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Texas.

Years since qualifying
10
Licensed in
IL, TX
In the registry since
2019
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

22999 Highway 59 N
Kingwood, TX 77339-4412
Phone: (281) 348-3322
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 20201 Crawford Ave, Olympia Fields, IL 60461-1010 — (708) 855-7297

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence T4639 (TX)
Internal Medicine Physician Taxonomy 207R00000X · Licence 036161038 (IL)
Hospitalist Physician Taxonomy 208M00000X · Licence 036161038 (IL)

Record details

NPI number1215596523
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 10, 2019
Last updated in NPPESJune 21, 2023
Certification dateJune 21, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Hospital Medicine Services Of Tx, Pllc — 372 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients200
Services billed 517 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $189 2 payments · a meal or drink at a meeting or visit, not a fee
Education $125 1 payment · educational material or training, not a fee
Gift $9 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Hca Houston Healthcare Kingwood Hospital · Kingwood, TX

Colleagues at Hospital Medicine Services of Tx, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 372 clinicians in the practice; 12 are shown here.

Other providers in Kingwood