AlanineMicroRNAsMyristoylated Alanine-Rich C Kinase Substrate
Dr. Patrick K. Leung, MD
NPI1871609446
- Medicare services, 2021
- 2,342
- Part D claims, 2022
- 22
- Publications
- 112
- Industry payments
- $296
- Affiliated sites
- 1
- Practice address
- 9 Center Pl, Dundalk, MD 21222
- Practice phone
- Call (661) 326-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kern County Hospital Authority
Dundalk, Maryland
Find Dr. Leung'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 K. Leung is an allergy physician in Dundalk, Maryland
Dr. Leung practices at Kern County Hospital Authority in Dundalk, Maryland.
Dr. Leung's NPI, 1871609446, was assigned on August 23, 2006. Dr. Leung graduated from University of Hong Kong Faculty of Medicine in 1970. Dr. Leung holds California license A331080.
NPI and contact details
- NPI
- 1871609446NPI Registry (opens in a new tab)
- NPI enumeration date
- August 23, 2006
- NPI status
- Active
- Practice phone
- (661) 326-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1970
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Patrick K. Leung practices at Kern County Hospital Authority in Dundalk, Maryland
Dr. Leung's primary practice is Kern County Hospital Authority, at 9 Center Pl, Dundalk, MD 21222 in Baltimore County. The practice phone is (661) 326-2000.
- Kern County Hospital Authority9 Center Pl, Dundalk, MD 21222 · Baltimore CountyPhone(661) 326-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Patrick K. Leung is affiliated with 2 sites of care
Dr. Leung's primary practice is Kern County Hospital Authority in Dundalk, Maryland. Dmand AI also links Dr. Leung to 1 physician office, named with a free account.
Kern County Hospital AuthorityPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Patrick K. Leung's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leung practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kern County Hospital Authority | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every site where Dr. Leung practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Patrick K. Leung is one of 34 allergy physicians in Maryland
Allergy is Dr. Leung's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Leung is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Leung's licenses on file in 2 states: California and Colorado.
Specialties and state licenses
- Allergy, CaliforniaPrimary
- Colorado license
Allergy physicians near Dr. Leung
Counts of allergy physicians 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 K. Leung billed Medicare for 2,342 services in 2021
CMS data shows 2,342 Medicare services from Dr. Leung across 9 procedure codes in 2021. Medicare paid $23,720 for them. Every service was in an office.
Medicare services, 20212,342
Paid by Medicare$23,720
Procedure codes9
Dr. Leung's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Tests and treatments
- 2020: 3,7382021: 2,17242%
- Office and hospital visits
- 2020: 2122021: 17020%
Dr. Leung compared with the Maryland median for allergy physicians, 2021
- Dr. Leung
- Maryland median
- Medicare services
- 2,342vs 1,83628% above
- Part D claims
- 22vs 18288% below
Medians across 26 allergy physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Leung's most billed Medicare procedure codes, 2021
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. Leung?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leung and other allergy physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Patrick K. Leung's patients have a median age of 34
Across all payers, Dmand AI patient panel data puts Dr. Leung's median patient age at 34, with 63% women.
Dr. Leung's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 34
Patient panel by sex, all payers
- Women63%
- Men37%
Source: Dmand AI Patient Panel Data
Dr. Patrick K. Leung wrote 22 Medicare Part D claims in 2022
In 2022, Dr. Leung wrote 22 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $603 in total drug cost. In 2021, CMS named 631 claims across 14 drugs.
Part D claims, 202222
Drugs named by CMS1
Total drug cost$603
Dr. Leung's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 6312022: 2297%
Drugs named by CMS: 1 in 2022, 14 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
Find allergy physicians like Dr. Leung by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Patrick K. Leung has 112 publications on record
Dmand AI links 112 papers to Dr. Leung, published from 2006 to 2021. 2018 was the busiest year, with 10. The most frequent topics are Liver Cirrhosis, Biliary, Autoantibodies and Disease Models, Animal. Dr. Leung has published most often in Hepatology. Dr. Leung's most frequent co-authors are Merrill E. Gershwin, William McKee Ridgway, MD and Christopher L. Bowlus, MD.
Papers112
Years published2006 to 2021
Dr. Leung's papers by year, 2012 to 2021
Topics Dr. Leung writes about most
- Liver Cirrhosis, Biliary
- Autoantibodies
- Disease Models, Animal
- Autoantigens
- Cholangitis
- Autoimmune Diseases
- Mitochondria
- Liver
Dr. Leung's most frequent co-authors
- Merrill E. Gershwin29 shared papers
- William McKee Ridgway, MD14 shared papers
- Christopher L. Bowlus, MD12 shared papers
Recent publications by Dr. Leung
AutoimmunityBile Duct NeoplasmsCD4-Positive T-Lymphocytes
AutoimmunityCytokinesDisease Models, Animal
Autoimmune DiseasesCells, CulturedDisease Models, Animal
AutoantibodiesConnective Tissue DiseasesEnvironmental Exposure
See who Dr. Leung researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leung works with, so you can find a warm path to the right allergy physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Patrick K. Leung received $296 in industry payments from 2016 to 2021
CMS Open Payments shows 8 general payments to Dr. Leung from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 87% of the total. AstraZeneca Pharmaceuticals LP paid the most, $135.
General payments to Dr. Leung by program year, 2016 to 2021
General payments to Dr. Leung by kind, 2016 to 2021
$296in total
- Food and beverage$25887%
- Education$3813%
Companies that paid Dr. Leung the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Patrick K. Leung graduated from University of Hong Kong Faculty of Medicine
Dr. Leung graduated from University of Hong Kong Faculty of Medicine in 1970.
- Medical school
- Board certified in allergy & immunology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Sources for Dr. Patrick K. Leung'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. Patrick K. Leung
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 K. Leung's NPI number?
Dr. Patrick K. Leung's NPI number is 1871609446. It was assigned on August 23, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Patrick K. Leung?
Dr. Patrick K. Leung is an allergy physician in Dundalk, Maryland. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).
Where does Dr. Patrick K. Leung practice?
Dr. Leung practices at 9 Center Pl, Dundalk, MD 21222. Dr. Leung's primary practice is Kern County Hospital Authority in Dundalk, Maryland. Dmand AI also links Dr. Leung to 1 physician office.
What is Dr. Patrick K. Leung's office phone number?
The practice phone on file for Dr. Leung is (661) 326-2000.
What is Dr. Patrick K. Leung's medical license number?
Dr. Leung holds California license A331080, one of the licenses on file in 2 states.
Which states has Dr. Patrick K. Leung been licensed in?
Dmand AI has state licenses on file for Dr. Leung in California (1978 to 2026) and Colorado (1976 to 1989).
Does Dr. Patrick K. Leung accept Medicare?
Yes. CMS data shows Dr. Leung billed Medicare for 2,342 services in 2021.
Is Dr. Patrick K. Leung board certified?
Yes. Dr. Leung is board certified in allergy & immunology by the American Board of Allergy and Immunology.
What services does Dr. Patrick K. Leung bill to Medicare?
In 2021, Dr. Leung's most billed Medicare services were allergy test or treatment (95004), allergy test or treatment (95117) and allergy test or treatment (95165).
Where did Dr. Patrick K. Leung go to medical school?
Dr. Leung graduated from University of Hong Kong Faculty of Medicine in 1970.
Show 5 more questionsShow fewer questions
What drugs does Dr. Patrick K. Leung prescribe most?
In 2022 Medicare Part D data, Dr. Leung's most prescribed drugs by claims were Fluticasone Propionate.
Has Dr. Patrick K. Leung received payments from drug or device companies?
CMS Open Payments shows $296 in general payments to Dr. Leung from 6 companies from 2016 to 2021. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Patrick K. Leung been practicing?
Dr. Leung graduated from medical school in 1970, 56 years ago.
Does Dr. Patrick K. Leung do research?
Dmand AI links 112 publications to Dr. Leung, published from 2006 to 2021.
Who does Dr. Patrick K. Leung publish with?
Dr. Leung's most frequent co-authors are Merrill E. Gershwin (29 shared papers), William McKee Ridgway, MD (14 shared papers) and Christopher L. Bowlus, MD (12 shared papers).
Selling to allergy practices?
See allergy physicians in Maryland by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card