John Steven Irons, M.D.
Allergy & Immunology Physician · Bethesda, MD
John Steven Irons, M.D. is an allergy & immunology physician with a practice address in Bethesda, Maryland, and NPI 1932210366, issued on Aug 31, 2006. Check the license (Maryland D0044417, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- John Steven Irons
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- D0044417 MD
Self-reported in NPPES; status is on the state search - Practice location
- 10401 Old Georgetown RD, Bethesda, MD 20814
- Phone
- (301) 564-4090
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (301) 564-1610
- Medicare enrollment
- Enrolled (PECOS I20080730000106); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 108 in Maryland → Look up another NPI →
Also registered at 10401 Old Georgetown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Arden Edwards, M.D.Dermatology Physician1295994051
- Francis Fishburne, PH.D.Clinical Neuropsychologist1073704847
Verify John Steven Irons in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0044417Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
135 Medicare Part D claims for 25 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Azelastine Hcl25 claims
- Montelukast Sodium19 claims
- Albuterol Sulfate Hfa16 claims
- Fluticasone-Salmeterol15 claims
- Fluticasone Propionate14 claims
- Levocetirizine Dihydrochloride12 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.
Bills Medicare through one group practice
- Privia Medical Group, LLCBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Steven Irons among 108 allergy & immunology physician records in Maryland
John Steven Irons, M.D. is one of 108 allergy & immunology physician records with a practice address in Maryland. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated1970 · median 2000 among the 49 with a school on file
- Record last updated2007 · 60% 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 Maryland 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 Maryland
There are 108 allergy & immunology physician records in Maryland.
All 108 in Maryland → Every provider in Bethesda → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Martin Evans, D.O.Bethesda, MD 208141194087312
- John Kehrl, M.D.Bethesda, MD 208141104175413
- Gordon Raphael, M.D.Bethesda, MD 208141619003167
- Brandon Schornack, DOBethesda, MD 208141225497738
- Carla Ward, MDChevy Chase, MD 208151275557274
- Alexandra Worobec, MDBethesda, MD 208161245946813
- Gina Dapul-Hidalgo, M.D.Rockville, MD 208501952592818
- Jordana Goldman, M.D.Rockville, MD 208501659803252
Common questions
What is John Steven Irons, M.D.'s NPI number?
John Steven Irons, M.D.'s National Provider Identifier (NPI) is 1932210366, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Steven Irons, M.D. located?
The NPPES record lists a practice address at 10401 Old Georgetown RD, Bethesda, MD, 20814. Phone: (301) 564-4090. Providers update this record themselves, so call before visiting.
How can I verify John Steven Irons, M.D.'s license?
NPPES lists Maryland license number D0044417, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Steven Irons, M.D. prescribe under Medicare Part D?
In 2024, John Steven Irons, M.D. had 135 Medicare Part D claims for 25 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.