Hassan A. Ahmad, M.D
Allergy & Immunology Physician · Chesterfield, MO
Hassan A. Ahmad, M.D is an allergy & immunology physician with a practice address in Chesterfield, Missouri, and NPI 1194138024, issued on Jun 9, 2014. Check the license on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Hassan A. Ahmad
- Credential
- M.D
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- S5537 TX
Self-reported in NPPES; status is on the state search - Practice location
- 226 S Woods Mill RD Ste 47W, Chesterfield, MO 63017
- Phone
- (314) 205-6600
- Enumerated
- Jun 9, 2014
- Record last updated
- Jul 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 590-5941
- Medicare enrollment
- Enrolled (PECOS I20210726000659); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Kansas City, School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 36 in Missouri → Look up another NPI →
Verify Hassan A. Ahmad in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing ArtsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
725 Medicare Part D claims for 213 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Ipratropium Bromide131 claims
- Azelastine Hcl94 claims
- Hizentra57 claims
- Fluticasone Propionate48 claims
- Epinephrine47 claims
- Famotidine39 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $2,056.51
53 payments; by number, the most common kind was food and beverage; the largest payer was Intuitive Surgical, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Medical Specialists OF St Lukes LLCChesterfield, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hassan A. Ahmad among 36 allergy & immunology physician records in Missouri
Hassan A. Ahmad, M.D is one of 36 allergy & immunology physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 86% of them.
- NPI issued2014 · 86% of these records are older, 6% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2014 · median 2002 among the 23 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in Missouri
There are 36 allergy & immunology physician records in Missouri.
All 36 in Missouri → Every provider in Chesterfield → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Rand Dankner, M.D.Chesterfield, MO 630171649263146
- Stephanie Park, M.D.Chesterfield, MO 630171497838387
- Jacqueline Reiss, M.D.Chesterfield, MO 630171497748909
- Jacquelyn Sturm, M.D.Chesterfield, MO 630171134311087
- Amit Shah, M.D.Festus, MO 630281134246770
- John Marcum, MDSt Clair, MO 630771720113053
- Ravneet Donegan, M.D.Saint Louis, MO 631041497041735
- Ashley Emmert, MDSaint Louis, MO 631091699948745
Common questions
What is Hassan A. Ahmad, M.D's NPI number?
Hassan A. Ahmad, M.D's National Provider Identifier (NPI) is 1194138024, issued on Jun 9, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Hassan A. Ahmad, M.D located?
The NPPES record lists a practice address at 226 S Woods Mill RD Ste 47W, Chesterfield, MO, 63017. Phone: (314) 205-6600. Providers update this record themselves, so call before visiting.
How can I verify Hassan A. Ahmad, M.D's license?
Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Hassan A. Ahmad, M.D prescribe under Medicare Part D?
In 2024, Hassan A. Ahmad, M.D had 725 Medicare Part D claims for 213 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.