J Allergy Clin Immunol Pract
Dr. Lily C. Pien, MD
- Medicare services, 2024
- 26
- Medicare patients, 2024
- 57
- Part D claims, 2024
- 178
- Publications
- 18
- Hospital affiliations
- 1
- Practice address
- 9500 Euclid Avenue, Cleveland, OH 44195
- Practice phone
- Call (216) 952-9829
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Pien'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. Lily C. Pien is an allergist and immunologist in Cleveland, Ohio
Dr. Pien practices at Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation.
Dr. Pien's NPI, 1225093925, was assigned on April 18, 2006. Dr. Pien graduated from Northwestern University Feinberg Medical School in 1983. Dr. Pien holds Ohio license 35056688P.
- NPI
- 1225093925NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0840202081
- NPI enumeration date
- April 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (216) 952-9829
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Lily C. Pien practices at Cleveland Clinic Main Campus in Cleveland, Ohio
Dr. Pien's primary practice is Cleveland Clinic Main Campus, at 9500 Euclid Avenue, Cleveland, OH 44195 in Cuyahoga County. The practice phone is (216) 952-9829.
- Cleveland Clinic Main Campus9500 Euclid Avenue, Cleveland, OH 44195 · Cuyahoga CountyPhone(216) 952-9829
Source: Dmand AI Affiliation Data
Dr. Lily C. Pien is affiliated with 3 sites of care and 1 medical group
Dr. Pien's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. The medical group on file is Cleveland Clinic. Dmand AI also links Dr. Pien to 2 more clinical labs, each named with a free account. Dr. Pien's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lily C. Pien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Pien practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Clinic Main Campus | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across The Cleveland Clinic Foundation and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Lily C. Pien is one of 119 allergists and immunologists in Ohio
Allergy and immunology is Dr. Pien's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Pien is licensed in Ohio.
Specialties and state licenses
- Allergy and immunology, OhioPrimary
Allergists and immunologists near Dr. Pien
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. Lily C. Pien billed Medicare for 26 services in 2024
CMS data shows 26 Medicare services from Dr. Pien across 2 procedure codes in 2024, all of them office visits, for 57 Medicare patients. Medicare paid $2,064 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Pien's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 382024: 2632%
Dr. Pien compared with the Ohio median for allergists and immunologists, 2024
- Dr. Pien
- Ohio median
- Medicare services
- 26vs 1,36198% below
- Medicare patients
- 57vs 12956% below
- Part D claims
- 84vs 22863% below
Medians across 119 allergists and immunologists in Ohio with Dmand AI profiles that report each measure.
Dr. Pien'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. Pien?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Pien and other allergists and immunologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lily C. Pien treated 57 Medicare patients in 2024, average age 71
CMS counts 57 Medicare patients who saw Dr. Pien in 2024. The largest group is 65 to 74, with 33 patients. 72% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 1.40, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Pien's median patient age at 45, with 73% women.
Dr. Pien's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Pien's Medicare patients by sex, 2024
- Women4172%
- Men1628%
Chronic conditions among Dr. Pien's Medicare patients, 2024
- High blood pressure72%
- High cholesterol70%
- Arthritis51%
- Asthma39%
- Anxiety33%
- Ischemic heart disease30%
- COPD23%
- Depression23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Pien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 45
Patient panel by sex, all payers
- Women73%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lily C. Pien wrote 178 Medicare Part D claims in 2024
In 2024, Dr. Pien wrote 178 Medicare Part D claims for 34 patients. 53% of them were for generic drugs. CMS names the drug for 84 of them, across 5 drugs with 11 or more claims each, at $687,539 in total drug cost. In 2023, CMS named 82 claims across 4 drugs.
Dr. Pien's Part D claims by kind of drug, 2024
- Generic94 claims53%
- Brand-name84 claims47%
Dr. Pien'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: 822024: 842%
Drugs named by CMS: 5 in 2024, 4 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. Lily C. Pien offers telehealth to Medicare patients
Dr. Pien accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Pien as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Lily C. Pien has 18 publications on record
Dmand AI links 18 papers to Dr. Pien, published from 2014 to 2023. 2014 was the busiest year, with 3. The most frequent topics are Anaphylaxis, Drug Hypersensitivity and Education, Medical. Dr. Pien has published most often in Ann Allergy Asthma Immunol. Dr. Pien's most frequent co-authors are Margaret Kuder, Maria Grace Lennox, MD and Susan R. Abouhassan, MD.
Dr. Pien's papers by year, 2014 to 2023
Topics Dr. Pien writes about most
- Anaphylaxis
- Drug Hypersensitivity
- Education, Medical
- Physicians
- Administration, Oral
- Allergens
- Allergy and Immunology
- Anti-Bacterial Agents
Dr. Pien's most frequent co-authors
- Margaret Kuder2 shared papers
- Maria Grace Lennox, MD2 shared papers
- Susan R. Abouhassan, MD1 shared paper
Recent publications by Dr. Pien
Ann Allergy Asthma Immunol
Curr Allergy Asthma Rep
Ann Allergy Asthma Immunol
See who Dr. Pien researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Pien 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. Lily C. Pien received $150 in industry payments from 2018 to 2019
CMS Open Payments shows 2 general payments to Dr. Pien from 2 drug and device companies from 2018 to 2019. Food and beverage make up the largest share, 100% of the total. Phadia US Inc. paid the most, $117.
General payments to Dr. Pien by program year, 2018 to 2019
Companies that paid Dr. Pien the most, 2018 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Lily C. Pien graduated from Northwestern University Feinberg Medical School
Dr. Pien graduated from Northwestern University Feinberg Medical School in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lily C. Pien'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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. Lily C. Pien
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. Lily C. Pien's NPI number?
Dr. Lily C. Pien's NPI number is 1225093925. It was assigned on April 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lily C. Pien?
Dr. Lily C. Pien is an allergist and immunologist in Cleveland, Ohio. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Lily C. Pien practice?
Dr. Pien practices at 9500 Euclid Avenue, Cleveland, OH 44195. Dr. Pien's primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Pien to 2 clinical labs.
What is Dr. Lily C. Pien's office phone number?
The practice phone on file for Dr. Pien is (216) 952-9829.
What is Dr. Lily C. Pien's medical license number?
Dr. Pien holds Ohio license 35056688P.
Which hospitals is Dr. Lily C. Pien affiliated with?
Dr. Pien practices at Cleveland Clinic Main Campus in Cleveland, Ohio.
What medical group is Dr. Lily C. Pien part of?
Dr. Pien is linked to Cleveland Clinic.
Does Dr. Lily C. Pien accept Medicare?
Yes. CMS data shows Dr. Pien billed Medicare for 26 services in 2024, and Dr. Pien accepts Medicare assignment.
Does Dr. Lily C. Pien offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Pien as offering telehealth services.
How many Medicare patients does Dr. Lily C. Pien see?
CMS counts 57 Medicare patients who saw Dr. Pien in 2024, with an average age of 71.
Show 7 more questionsShow fewer questions
What services does Dr. Lily C. Pien bill to Medicare?
In 2024, Dr. Pien's most billed Medicare services were office visit, new patient (99204) and office visit, established patient (99214).
Where did Dr. Lily C. Pien go to medical school?
Dr. Pien graduated from Northwestern University Feinberg Medical School in 1983.
What drugs does Dr. Lily C. Pien prescribe most?
In 2024 Medicare Part D data, Dr. Pien's most prescribed drugs by claims were Montelukast Sodium, Fluticasone Propionate and Spiriva Respimat.
Has Dr. Lily C. Pien received payments from drug or device companies?
CMS Open Payments shows $150 in general payments to Dr. Pien from 2 companies from 2018 to 2019. The largest total came from Phadia US Inc.
How long has Dr. Lily C. Pien been practicing?
Dr. Pien graduated from medical school in 1983, 43 years ago.
Does Dr. Lily C. Pien do research?
Dmand AI links 18 publications to Dr. Pien, published from 2014 to 2023.
Who does Dr. Lily C. Pien publish with?
Dr. Pien's most frequent co-authors are Margaret Kuder (2 shared papers), Maria Grace Lennox, MD (2 shared papers) and Susan R. Abouhassan, MD (1 shared paper).
Selling to allergy and immunology practices?
See allergists and immunologists in Ohio 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