Dr. Patrick Htain Win, MD
- Medicare services, 2024
- 24,015
- Medicare patients, 2024
- 184
- Part D claims, 2024
- 163
- Hospital affiliations
- 1
- Industry payments
- $346,946
- Practice address
- 325 Tamarack Ln, O'Fallon, IL 62269
- Practice phone
- Call (618) 624-2060
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Allergy, Asthma & Immunology Center SC
O'Fallon, Illinois
Find Dr. Win'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. Patrick Htain Win is an allergist and immunologist in O'Fallon, Illinois
Dr. Win practices at Allergy, Asthma & Immunology Center SC in O'Fallon, Illinois.
Dr. Win's NPI, 1346335783, was assigned on October 3, 2006. Dr. Win graduated from University of Missouri, Columbia School of Medicine in 2002. Dr. Win holds Illinois license 36117560.
- NPI
- 1346335783NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294835609
- NPI enumeration date
- October 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 624-2060
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 50
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Patrick Htain Win practices at Allergy, Asthma & Immunology Center SC in O'Fallon, Illinois
Dr. Win's primary practice is Allergy, Asthma & Immunology Center SC, at 325 Tamarack Ln, O'Fallon, IL 62269 in Saint Clair County. The practice phone is (618) 624-2060.
- Allergy, Asthma & Immunology Center SC325 Tamarack Ln, O'Fallon, IL 62269 · Saint Clair CountyPhone(618) 624-2060
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Patrick Htain Win is affiliated with 3 sites of care and 1 medical group
Dr. Win's primary practice is Allergy, Asthma & Immunology Center SC in O'Fallon, Illinois. Dr. Win is also affiliated with Memorial Hospital in Belleville. The medical group on file is Allergy, Asthma & Immunology Center, SC. Dmand AI also links Dr. Win 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. Patrick Htain Win's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Win practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Allergy, Asthma & Immunology Center SC | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Patrick Htain Win is one of 145 allergists and immunologists in Illinois
Allergy and immunology is Dr. Win's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dmand AI has Dr. Win's licenses on file in 2 states: Illinois and Missouri.
Specialties and state licenses
- Allergy and immunology, IllinoisPrimary
- Allergy and immunology (internal medicine), Missouri
Allergists and immunologists near Dr. Win
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. Patrick Htain Win billed Medicare for 24,015 services in 2024
CMS data shows 24,015 Medicare services from Dr. Win across 7 procedure codes in 2024, for 184 Medicare patients. Medicare paid $540,656 for them. Every service was in an office.
Dr. Win's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 15,2252024: 14,3566%
- Tests and treatments
- 2023: 10,5662024: 9,6349%
- Office and hospital visits
- 2023: 1102024: 2577%
Dr. Win compared with the Illinois median for allergists and immunologists, 2024
- Dr. Win
- Illinois median
- Medicare services
- 24,015vs 90526.5 times
- Medicare patients
- 184vs 11659% above
- Part D claims
- 67vs 24673% below
Medians across 130 allergists and immunologists in Illinois with Dmand AI profiles that report each measure.
Dr. Win'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.
Need commercial claims for Dr. Win?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Win and other allergists and immunologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick Htain Win treated 184 Medicare patients in 2024, average age 70
CMS counts 184 Medicare patients who saw Dr. Win in 2024. The largest group is 65 to 74, with 128 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Win's median patient age at 49, with 66% women.
Dr. Win's Medicare patients by age, 2024
Dr. Win's Medicare patients by sex, 2024
- Women12467%
- Men6033%
Chronic conditions among Dr. Win's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Asthma45%
- Diabetes31%
- COPD26%
- Ischemic heart disease26%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Win's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Patrick Htain Win wrote 163 Medicare Part D claims in 2024
In 2024, Dr. Win wrote 163 Medicare Part D claims for 49 patients. CMS names the drug for 67 of them, across 4 drugs with 11 or more claims each, at $128,278 in total drug cost. In 2023, CMS named 182 claims across 10 drugs.
Dr. Win'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: 1822024: 6763%
Drugs named by CMS: 4 in 2024, 10 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
How Dr. Patrick Htain Win takes part in Medicare
Dr. Win accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Patrick Htain Win received $346,946 in industry payments from 2016 to 2025
CMS Open Payments shows 686 general payments to Dr. Win from 29 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 72% of the total. AstraZeneca Pharmaceuticals LP paid the most, $185,531. It also lists 11 research payments totaling $22,075 from 2016 to 2017.
General payments to Dr. Win by program year, 2016 to 2025
General payments to Dr. Win by kind, 2016 to 2025
- Speaker and faculty fees$250,44772%
- Travel and lodging$40,99512%
- Consulting fees$35,65410%
- Food and beverage$19,7826%
- Education$680%
Companies that paid Dr. Win the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick Htain Win graduated from University of Missouri, Columbia School of Medicine
Dr. Win graduated from University of Missouri, Columbia School of Medicine in 2002.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick Htain Win'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) |
| 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. Patrick Htain Win
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. Patrick Htain Win's NPI number?
Dr. Patrick Htain Win's NPI number is 1346335783. It was assigned on October 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick Htain Win?
Dr. Patrick Htain Win is an allergist and immunologist in O'Fallon, Illinois. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Patrick Htain Win practice?
Dr. Win practices at 325 Tamarack Ln, O'Fallon, IL 62269. Dr. Win's primary practice is Allergy, Asthma & Immunology Center SC in O'Fallon, Illinois. Dmand AI also links Dr. Win to 1 group practice or clinic.
What is Dr. Patrick Htain Win's office phone number?
The practice phone on file for Dr. Win is (618) 624-2060.
What is Dr. Patrick Htain Win's medical license number?
Dr. Win holds Illinois license 36117560, one of the licenses on file in 2 states.
Which states has Dr. Patrick Htain Win been licensed in?
Dmand AI has state licenses on file for Dr. Win in Illinois and Missouri.
Which hospitals is Dr. Patrick Htain Win affiliated with?
Dr. Win is affiliated with Memorial Hospital in Belleville.
What medical group is Dr. Patrick Htain Win part of?
Dr. Win is linked to Allergy, Asthma & Immunology Center, SC.
Does Dr. Patrick Htain Win accept Medicare?
Yes. CMS data shows Dr. Win billed Medicare for 24,015 services in 2024, and Dr. Win accepts Medicare assignment.
How many Medicare patients does Dr. Patrick Htain Win see?
CMS counts 184 Medicare patients who saw Dr. Win in 2024, with an average age of 70.
Show 5 more questionsShow fewer questions
What services does Dr. Patrick Htain Win bill to Medicare?
In 2024, Dr. Win's most billed Medicare services were injected or infused drug (J2357), allergy test or treatment (95165) and allergy test or treatment (95117).
Where did Dr. Patrick Htain Win go to medical school?
Dr. Win graduated from University of Missouri, Columbia School of Medicine in 2002.
What drugs does Dr. Patrick Htain Win prescribe most?
In 2024 Medicare Part D data, Dr. Win's most prescribed drugs by claims were Hyqvia, Montelukast Sodium and Breo Ellipta.
Has Dr. Patrick Htain Win received payments from drug or device companies?
CMS Open Payments shows $346,946 in general payments to Dr. Win from 29 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Patrick Htain Win been practicing?
Dr. Win graduated from medical school in 2002, 24 years ago.
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