Dr. Iwona Dziewa, DO
- Medicare services, 2024
- 1,433
- Medicare patients, 2024
- 186
- Part D claims, 2024
- 475
- Publications
- 2
- Industry payments
- $474
- Practice address
- 3680 Hill Blvd, Jefferson Valley, NY 10535
- Practice phone
- Call (914) 241-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Caremount Medical
Jefferson Valley, New York
Find Dr. Dziewa's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Iwona Dziewa is an allergist and immunologist in Jefferson Valley, New York
Dr. Dziewa practices at Caremount Medical in Jefferson Valley, New York.
Dr. Dziewa's NPI, 1083091789, was assigned on May 1, 2015. Dr. Dziewa graduated from NYIT College Of Osteopathic Medicine in 2011. Dr. Dziewa holds New York license 309855.
- NPI
- 1083091789NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830442532
- NPI enumeration date
- May 1, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (914) 241-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Iwona Dziewa practices at Caremount Medical in Jefferson Valley, New York
Dr. Dziewa's primary practice is Caremount Medical, at 3680 Hill Blvd, Jefferson Valley, NY 10535 in Westchester County. The practice phone is (914) 241-1050.
- Caremount Medical3680 Hill Blvd, Jefferson Valley, NY 10535 · Westchester CountyPhone(914) 241-1050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Iwona Dziewa is affiliated with 2 sites of care and 1 medical group
Dr. Dziewa's primary practice is Caremount Medical in Jefferson Valley, New York. The medical group on file is CareMount Medical. Dmand AI also links Dr. Dziewa to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Iwona Dziewa's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dziewa practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Caremount Medical | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Iwona Dziewa is one of 250 allergists and immunologists in New York
Allergy and immunology is Dr. Dziewa's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dmand AI has Dr. Dziewa's licenses on file in 2 states: New York and Pennsylvania.
Specialties and state licenses
- Allergy and immunology, New YorkPrimary
- Pennsylvania license
Allergists and immunologists near Dr. Dziewa
Counts of allergists and immunologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Iwona Dziewa billed Medicare for 1,433 services in 2024
CMS data shows 1,433 Medicare services from Dr. Dziewa across 10 procedure codes in 2024, for 186 Medicare patients. Medicare paid $28,773 for them. Every service was in an office.
Dr. Dziewa's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,0862024: 1,23314%
- Office and hospital visits
- 2023: 972024: 18086%
- Surgery
- 2023: 02024: 20
Dr. Dziewa compared with the New York median for allergists and immunologists, 2024
- Dr. Dziewa
- New York median
- Medicare services
- 1,433vs 1,01741% above
- Medicare patients
- 186vs 9792% above
- Part D claims
- 367vs 22265% above
Medians across 249 allergists and immunologists in New York with Dmand AI profiles that report each measure.
Dr. Dziewa's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dziewa and other allergists and immunologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Iwona Dziewa treated 186 Medicare patients in 2024, average age 72
CMS counts 186 Medicare patients who saw Dr. Dziewa in 2024. The largest group is 65 to 74, with 94 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Dziewa's median patient age at 40, with 56% women.
Dr. Dziewa's Medicare patients by age, 2024
Dr. Dziewa's Medicare patients by sex, 2024
- Women11763%
- Men6937%
Chronic conditions among Dr. Dziewa's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis47%
- Asthma30%
- Ischemic heart disease26%
- Diabetes22%
- Osteoporosis20%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Dziewa's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women56%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Iwona Dziewa wrote 475 Medicare Part D claims in 2024
In 2024, Dr. Dziewa wrote 475 Medicare Part D claims for 122 patients. 61% of them were for generic drugs. CMS names the drug for 367 of them, across 15 drugs with 11 or more claims each, at $312,633 in total drug cost. In 2023, CMS named 139 claims across 7 drugs.
Dr. Dziewa's Part D claims by kind of drug, 2024
- Generic289 claims61%
- Brand-name186 claims39%
Dr. Dziewa's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1392024: 367164%
Drugs named by CMS: 15 in 2024, 7 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Iwona Dziewa offers telehealth to Medicare patients
Dr. Dziewa accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dziewa as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Iwona Dziewa has 2 publications on record
Dmand AI links 2 papers to Dr. Dziewa, published from 2020 to 2021. Dr. Dziewa's most frequent co-author is Timothy J. Craig, DO.
Dr. Dziewa's most frequent co-authors
Recent publications by Dr. Dziewa
See who Dr. Dziewa researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Dziewa works with, so you can find a warm path to the right allergists and immunologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Iwona Dziewa received $474 in industry payments from 2019 to 2025
CMS Open Payments shows 22 general payments to Dr. Dziewa from 10 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $162.
General payments to Dr. Dziewa by program year, 2019 to 2025
Companies that paid Dr. Dziewa the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Iwona Dziewa graduated from NYIT College Of Osteopathic Medicine
Dr. Dziewa graduated from NYIT College Of Osteopathic Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Iwona Dziewa's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Iwona Dziewa
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Iwona Dziewa's NPI number?
Dr. Iwona Dziewa's NPI number is 1083091789. It was assigned on May 1, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Iwona Dziewa?
Dr. Iwona Dziewa is an allergist and immunologist in Jefferson Valley, New York. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Iwona Dziewa practice?
Dr. Dziewa practices at 3680 Hill Blvd, Jefferson Valley, NY 10535. Dr. Dziewa's primary practice is Caremount Medical in Jefferson Valley, New York. Dmand AI also links Dr. Dziewa to 1 group practice or clinic.
What is Dr. Iwona Dziewa's office phone number?
The practice phone on file for Dr. Dziewa is (914) 241-1050.
What is Dr. Iwona Dziewa's medical license number?
Dr. Dziewa holds New York license 309855, one of the licenses on file in 2 states.
Which states has Dr. Iwona Dziewa been licensed in?
Dmand AI has state licenses on file for Dr. Dziewa in New York and Pennsylvania.
What medical group is Dr. Iwona Dziewa part of?
Dr. Dziewa is linked to CareMount Medical.
Does Dr. Iwona Dziewa accept Medicare?
Yes. CMS data shows Dr. Dziewa billed Medicare for 1,433 services in 2024, and Dr. Dziewa accepts Medicare assignment.
Does Dr. Iwona Dziewa offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Dziewa as offering telehealth services.
How many Medicare patients does Dr. Iwona Dziewa see?
CMS counts 186 Medicare patients who saw Dr. Dziewa in 2024, with an average age of 72.
Show 7 more questionsShow fewer questions
What services does Dr. Iwona Dziewa bill to Medicare?
In 2024, Dr. Dziewa's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Iwona Dziewa go to medical school?
Dr. Dziewa graduated from NYIT College Of Osteopathic Medicine in 2011.
What drugs does Dr. Iwona Dziewa prescribe most?
In 2024 Medicare Part D data, Dr. Dziewa's most prescribed drugs by claims were Azelastine HCl, Fluticasone Propionate and Montelukast Sodium.
Has Dr. Iwona Dziewa received payments from drug or device companies?
CMS Open Payments shows $474 in general payments to Dr. Dziewa from 10 companies from 2019 to 2025. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Iwona Dziewa been practicing?
Dr. Dziewa graduated from medical school in 2011, 15 years ago.
Does Dr. Iwona Dziewa do research?
Dmand AI links 2 publications to Dr. Dziewa, published from 2020 to 2021.
Who does Dr. Iwona Dziewa publish with?
Dr. Dziewa's most frequent co-authors are Timothy J. Craig, DO (1 shared paper).
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