Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mrs. Hafsa Hassan Siddiqui, MD

Individual provider Infectious Disease Physician · NPI 1447446935

Mrs. Hafsa Hassan Siddiqui, MD is registered under Infectious Disease in Huntsville, Alabama. Qualified in 1999, 27 years ago. Practices with Alabama Infectious Disease Center PC, a 3-clinician group and accepts Medicare assignment. Licensed in Alabama and Utah.

Years since qualifying
27
Licensed in
AL, UT
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

420 Lowell Dr SE Ste 301
Huntsville, AL 35801-3754 Not confirmed with CMS for 16 years — call before visiting
Phone: (256) 265-7955
Fax: (256) 265-7954
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 28544 (AL)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 5836739-1205 (UT)

Record details

NPI number1447446935
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 19, 2007
Last updated in NPPESJanuary 21, 2010

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Alabama Infectious Disease Center P.C. — 3 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 patients444
Services billed 2,622 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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 $1,440 76 payments · a meal or drink at a meeting or visit, not a fee
Education $59 14 payments · educational material or training, not a fee

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. Those with a page here are linked.

Colleagues at Alabama Infectious Disease Center PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Huntsville