1. Home
  2. Directory
  3. Missouri
  4. Chesterfield
  5. Allergy Immunology
  6. NPI Profile

MR. HASSAN A AHMAD M.D
NPI 1194138024
Allergy & Immunology in Chesterfield, MO

Active since June 09, 2014PECOS EnrolledAccepts Medicare Assignment
226 S WOODS MILL RD STE 47W, CHESTERFIELD, MO 63017(314) 205-6600(314) 590-5941 Get Directions Write a Review

NPPES record last updated: July 28, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 28, 2021, May 8, 2020, Nov 13, 2018 and 1 more (4 updates tracked since 2018).

About Mr. Hassan A Ahmad M.d NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. HASSAN A AHMAD M.D (NPI 1194138024) is an individual allergy & immunology provider in Chesterfield, Missouri, licensed in Texas (S5537) and active in the NPI registry since June 2014. He is enrolled in Medicare PECOS, is affiliated with St Lukes Hospital, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2014).

NPPES Registry Identity

NPI1194138024
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameMR. HASSAN A AHMADCredential: M.D
Location Address226 S WOODS MILL RD STE 47WChesterfield, MO 63017-3663
Mailing Address226 S Woods Mill Rd Ste 47wChesterfield, MO 63017-3663 · (314) 205-6600 · Fax (314) 590-5941
Phone(314) 205-6600
Fax(314) 590-5941
Sole ProprietorNo
Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2014
Enumeration DateJune 9, 2014
Last NPPES UpdateJuly 28, 20214 updates tracked since enumeration
NPPES CertifiedJuly 28, 2021
✔ NPI 1194138024 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in TX · S5537
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
226 S WOODS MILL RD STE 47W, Chesterfield, MO 63017
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Hassan A Ahmad M.d is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6103040993
PECOS Enrollment IDI20210726000659
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
1,819 services35 patients
Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
240 services11 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
156 services89 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
83 services83 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
25 services21 patients
Telephone medical discussion with physician, 5-10 minutes 99441
A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.
21 services19 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Lukes Hospital

Acute Care Hospitals · Chesterfield, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260179
Location232 S Woods Mill RdChesterfield, MO 63017 · St. Louis County
Emergency services Birthing friendly

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Hassan Ahmad's NPI number?

The NPI number for Hassan Ahmad is 1194138024. It was assigned to this individual provider in the NPPES registry on June 9, 2014.

Where is Hassan Ahmad located?

Hassan Ahmad practices at 226 S Woods Mill Rd Ste 47W, Chesterfield, MO 63017. The listed phone number is (314) 205-6600.

What is Hassan Ahmad's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Hassan Ahmad enrolled in Medicare?

Yes. Hassan Ahmad is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Hassan Ahmad accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 5 other insurers list Hassan Ahmad as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Hassan Ahmad affiliated with any hospitals?

According to CMS data, Hassan Ahmad is affiliated with St Lukes Hospital.

When was this NPI record last updated?

The NPPES record for Hassan Ahmad was last updated on July 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.