Clin Exp Rheumatol
Dr. Douglas Lienesch, MD
- Medicare services, 2024
- 797
- Medicare patients, 2024
- 529
- Part D claims, 2024
- 2,976
- Publications
- 4
- Hospital affiliations
- 5
- Practice address
- 4735 Ogletown Stanton Rd, Newark, DE 19713
- Practice phone
- Call (302) 428-2522
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CCHS Rheumatology
Newark, Delaware
Find Dr. Lienesch's professional email, personal email and mobile number
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Dr. Douglas Lienesch is a rheumatologist in Newark, Delaware
Dr. Lienesch practices at CCHS Rheumatology in Newark, Delaware.
Dr. Lienesch's NPI, 1124129747, was assigned on September 26, 2006. Dr. Lienesch holds Delaware license C1-0013313.
- NPI
- 1124129747NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5890746499
- NPI enumeration date
- September 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (302) 428-2522
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Douglas Lienesch practices at CCHS Rheumatology in Newark, Delaware
Dr. Lienesch's primary practice is CCHS Rheumatology, at 4735 Ogletown Stanton Rd, Newark, DE 19713 in New Castle County. The practice phone is (302) 428-2522.
- CCHS Rheumatology4735 Ogletown Stanton Rd, Newark, DE 19713 · New Castle CountyPhone(302) 428-2522
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Douglas Lienesch is affiliated with 7 sites of care and 2 medical groups
Dr. Lienesch's primary practice is CCHS Rheumatology in Newark, Delaware. Dr. Lienesch is also affiliated with Christiana Hospital. The medical group on file is ChristianaCare. Dmand AI also links Dr. Lienesch to 4 more hospitals, 1 group practice or clinic and 1 medical group, each 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. Douglas Lienesch's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lienesch practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CCHS Rheumatology | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Douglas Lienesch is one of 18 rheumatologists in Delaware
Rheumatology is Dr. Lienesch's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Lienesch is board certified in rheumatology by the American Board of Internal Medicine. Dmand AI has Dr. Lienesch's licenses on file in 2 states: Delaware and Pennsylvania.
Specialties and state licenses
- Rheumatology, DelawarePrimary
- Pennsylvania license
Rheumatologists near Dr. Lienesch
Counts of rheumatologists 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. Douglas Lienesch billed Medicare for 797 services in 2024
CMS data shows 797 Medicare services from Dr. Lienesch across 8 procedure codes in 2024, for 529 Medicare patients. Medicare paid $62,550 for them.
Dr. Lienesch's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6382024: 79725%
- Surgery
- 2023: 162024: 0100%
Where Dr. Lienesch's Medicare services took place, 2024
- In an office11114%
- In a facility68686%
Dr. Lienesch compared with the Delaware median for rheumatologists, 2024
- Dr. Lienesch
- Delaware median
- Medicare services
- 797vs 81,84099% below
- Medicare patients
- 529vs 529Close to median
- Part D claims
- 2,761vs 1,1712.4 times
Medians across 19 rheumatologists in Delaware with Dmand AI profiles that report each measure.
Dr. Lienesch'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. Lienesch and other rheumatologists in Delaware.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Douglas Lienesch treated 529 Medicare patients in 2024, average age 73
CMS counts 529 Medicare patients who saw Dr. Lienesch in 2024. The largest group is 65 to 74, with 244 patients. 75% of them have arthritis, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Lienesch's median patient age at 68, with 77% women.
Dr. Lienesch's Medicare patients by age, 2024
Dr. Lienesch's Medicare patients by sex, 2024
- Women41078%
- Men11922%
Chronic conditions among Dr. Lienesch's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure73%
- Osteoporosis41%
- Diabetes30%
- Anxiety29%
- Mood disorders29%
- Chronic kidney disease27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lienesch's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women77%
- Men21%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Douglas Lienesch wrote 2,976 Medicare Part D claims in 2024
In 2024, Dr. Lienesch wrote 2,976 Medicare Part D claims for 479 patients. 86% of them were for generic drugs. CMS names the drug for 2,761 of them, across 50 drugs with 11 or more claims each, at $2,000,897 in total drug cost. In 2023, CMS named 2,147 claims across 40 drugs.
Dr. Lienesch's Part D claims by kind of drug, 2024
- Generic2,565 claims86%
- Brand-name397 claims13%
- Other14 claims0%
Dr. Lienesch'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.
Drug classes CMS tracks in Dr. Lienesch's Part D claims, 2024
- Opioids3%83 of 2,976 claims
- Antibiotics1%19 of 2,976 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 2,1472024: 2,76129%
Drugs named by CMS: 50 in 2024, 40 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. Douglas Lienesch offers telehealth to Medicare patients
Dr. Lienesch accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lienesch as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Douglas Lienesch has 4 publications on record
Dmand AI links 4 papers to Dr. Lienesch. The most frequent topics are Arthritis, Rheumatoid and Cryoglobulinemia. Dr. Lienesch's most frequent co-authors are Rohit Aggarwal, MD and Jeremy Scott Tilstra, MD, PhD.
Topics Dr. Lienesch writes about most
- Arthritis, Rheumatoid
- Cryoglobulinemia
Dr. Lienesch's most frequent co-authors
Recent publications by Dr. Lienesch
Dermatol Clin
J Clin Rheumatol
Rheumatology (Oxford)
See who Dr. Lienesch researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lienesch works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Douglas Lienesch received $871 in industry payments from 2016 to 2025
CMS Open Payments shows 22 general payments to Dr. Lienesch from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 71% of the total. Amgen Inc. paid the most, $285.
General payments to Dr. Lienesch by program year, 2016 to 2025
General payments to Dr. Lienesch by kind, 2016 to 2025
- Food and beverage$61671%
- Consulting fees$20023%
- Education$556%
Companies that paid Dr. Lienesch 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. Douglas Lienesch is board certified in rheumatology
- Board certified in rheumatology
Source: Dmand AI Professional Profile Data
Sources for Dr. Douglas Lienesch'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. Douglas Lienesch
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. Douglas Lienesch's NPI number?
Dr. Douglas Lienesch's NPI number is 1124129747. It was assigned on September 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Douglas Lienesch?
Dr. Douglas Lienesch is a rheumatologist in Newark, Delaware. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Douglas Lienesch practice?
Dr. Lienesch practices at 4735 Ogletown Stanton Rd, Newark, DE 19713. Dr. Lienesch's primary practice is CCHS Rheumatology in Newark, Delaware. Dmand AI also links Dr. Lienesch to 4 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Douglas Lienesch's office phone number?
The practice phone on file for Dr. Lienesch is (302) 428-2522.
What is Dr. Douglas Lienesch's medical license number?
Dr. Lienesch holds Delaware license C1-0013313, one of the licenses on file in 2 states.
Which states has Dr. Douglas Lienesch been licensed in?
Dmand AI has state licenses on file for Dr. Lienesch in Delaware and Pennsylvania.
Which hospitals is Dr. Douglas Lienesch affiliated with?
Dr. Lienesch is affiliated with Christiana Hospital. Dmand AI links Dr. Lienesch to 4 more hospitals.
What medical group is Dr. Douglas Lienesch part of?
Dr. Lienesch is linked to ChristianaCare. Dmand AI links Dr. Lienesch to 1 more medical group.
Does Dr. Douglas Lienesch accept Medicare?
Yes. CMS data shows Dr. Lienesch billed Medicare for 797 services in 2024, and Dr. Lienesch accepts Medicare assignment.
Does Dr. Douglas Lienesch offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lienesch as offering telehealth services.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Douglas Lienesch see?
CMS counts 529 Medicare patients who saw Dr. Lienesch in 2024, with an average age of 73.
Is Dr. Douglas Lienesch board certified?
Yes. Dr. Lienesch is board certified in rheumatology by the American Board of Internal Medicine.
What services does Dr. Douglas Lienesch bill to Medicare?
In 2024, Dr. Lienesch's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99204).
What drugs does Dr. Douglas Lienesch prescribe most?
In 2024 Medicare Part D data, Dr. Lienesch's most prescribed drugs by claims were Hydroxychloroquine Sulfate, Prednisone and Methotrexate.
Has Dr. Douglas Lienesch received payments from drug or device companies?
CMS Open Payments shows $871 in general payments to Dr. Lienesch from 7 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. Douglas Lienesch been practicing?
Dr. Lienesch graduated from medical school in 1989, 37 years ago.
Does Dr. Douglas Lienesch do research?
Dmand AI links 4 publications to Dr. Lienesch.
Who does Dr. Douglas Lienesch publish with?
Dr. Lienesch's most frequent co-authors are Rohit Aggarwal, MD (1 shared paper) and Jeremy Scott Tilstra, MD, PhD (1 shared paper).
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