Dr. David Adrian Lilienstein, MD
- Medicare services, 2024
- 57
- Medicare patients, 2024
- 63
- Part D claims, 2024
- 368
- Hospital affiliations
- 2
- Medical group
- 1
- Practice address
- 4501 Sand Creek Road, Antioch, CA 94531
- Practice phone
- Call (925) 813-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lilienstein's professional email, personal email and mobile number
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Dr. David Adrian Lilienstein is an emergency medicine physician in Antioch, California
Dr. Lilienstein practices at Antioch Medical Center in Antioch, California, part of Kaiser Permanente.
Dr. Lilienstein's NPI, 1750571212, was assigned on July 30, 2007. Dr. Lilienstein graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2003. Dr. Lilienstein holds California license A100009.
- NPI
- 1750571212NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789770215
- NPI enumeration date
- July 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 813-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David Adrian Lilienstein practices at Antioch Medical Center in Antioch, California
Dr. Lilienstein's primary practice is Antioch Medical Center, at 4501 Sand Creek Road, Antioch, CA 94531 in Contra Costa County. The practice phone is (925) 813-6500.
- Antioch Medical Center4501 Sand Creek Road, Antioch, CA 94531 · Contra Costa CountyPhone(925) 813-6500
Source: Dmand AI Affiliation Data
Dr. David Adrian Lilienstein is affiliated with 2 sites of care and 1 medical group
Dr. Lilienstein's primary practice is Antioch Medical Center in Antioch, California, part of Kaiser Permanente. Dr. Lilienstein is also affiliated with Walnut Creek Medical Center. The medical group on file is The Permanente Medical Group, Inc.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Adrian Lilienstein's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lilienstein practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Antioch Medical Center | 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. David Adrian Lilienstein is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Lilienstein's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Lilienstein is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Lilienstein's licenses on file in 3 states: California, Oregon and Connecticut.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Oregon license
- Connecticut license
Emergency medicine physicians near Dr. Lilienstein
Counts of emergency medicine 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. David Adrian Lilienstein billed Medicare for 57 services in 2024
CMS data shows 57 Medicare services from Dr. Lilienstein across 2 procedure codes in 2024, for 63 Medicare patients. Medicare paid $6,128 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lilienstein's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 482024: 5719%
Dr. Lilienstein compared with the California median for emergency medicine physicians, 2024
- Dr. Lilienstein
- California median
- Medicare services
- 57vs 26578% below
- Medicare patients
- 63vs 24374% below
- Part D claims
- 169vs 622.7 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Lilienstein'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. Lilienstein and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Adrian Lilienstein treated 63 Medicare patients in 2024, average age 67
CMS counts 63 Medicare patients who saw Dr. Lilienstein in 2024. The largest group is 65 to 74, with 25 patients. 75% of them have high blood pressure, and 57% have high cholesterol. 67% are also on Medicaid. Their average risk score is 2.32, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Lilienstein's median patient age at 44, with 58% women.
Dr. Lilienstein's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lilienstein's Medicare patients by sex, 2024
- Women3454%
- Men2946%
Chronic conditions among Dr. Lilienstein's Medicare patients, 2024
- High blood pressure75%
- High cholesterol57%
- Diabetes46%
- Anxiety41%
- Arthritis40%
- Mood disorders37%
- Depression32%
- Ischemic heart disease30%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lilienstein's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David Adrian Lilienstein wrote 368 Medicare Part D claims in 2024
In 2024, Dr. Lilienstein wrote 368 Medicare Part D claims for 217 patients. 93% of them were for generic drugs. CMS names the drug for 169 of them, across 9 drugs with 11 or more claims each, at $1,310 in total drug cost. In 2023, CMS named 96 claims across 5 drugs.
Dr. Lilienstein's Part D claims by kind of drug, 2024
- Generic344 claims93%
- Brand-name24 claims7%
Dr. Lilienstein'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. Lilienstein's Part D claims, 2024
- Opioids10%38 of 368 claims
- Antibiotics18%65 of 368 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: 962024: 16976%
Drugs named by CMS: 9 in 2024, 5 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. David Adrian Lilienstein takes part in Medicare
Dr. Lilienstein 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. David Adrian Lilienstein serves on 1 committee
Dr. Lilienstein serves on Emergency Medical Services.
Dr. Lilienstein's committees and leadership roles
- Emergency Medical ServicesLiaison
- 2008 to present
- Code Blue Committee - Kaiser Antioch Medical CenterChairman
- 2010 to 2016
Source: Dmand AI Professional Profile Data
Dr. David Adrian Lilienstein graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science
Dr. Lilienstein graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2003. Dr. Lilienstein is a member of ACEP.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. David Adrian Lilienstein accepts plans from 1 insurance carrier
Dr. Lilienstein is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Lilienstein accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. David Adrian Lilienstein'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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. David Adrian Lilienstein
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. David Adrian Lilienstein's NPI number?
Dr. David Adrian Lilienstein's NPI number is 1750571212. It was assigned on July 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David Adrian Lilienstein?
Dr. David Adrian Lilienstein is an emergency medicine physician in Antioch, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David Adrian Lilienstein practice?
Dr. Lilienstein practices at 4501 Sand Creek Road, Antioch, CA 94531. Dr. Lilienstein's primary practice is Antioch Medical Center in Antioch, California, part of Kaiser Permanente.
What is Dr. David Adrian Lilienstein's office phone number?
The practice phone on file for Dr. Lilienstein is (925) 813-6500.
What is Dr. David Adrian Lilienstein's medical license number?
Dr. Lilienstein holds California license A100009, one of the licenses on file in 3 states.
Which states has Dr. David Adrian Lilienstein been licensed in?
Dmand AI has state licenses on file for Dr. Lilienstein in California (2007 to 2027), Oregon (2010 to 2019) and Connecticut (2006 to 2007).
Which hospitals is Dr. David Adrian Lilienstein affiliated with?
Dr. Lilienstein practices at Antioch Medical Center in Antioch, California. Dr. Lilienstein is also affiliated with Walnut Creek Medical Center.
What medical group is Dr. David Adrian Lilienstein part of?
Dr. Lilienstein is linked to The Permanente Medical Group, Inc.
Does Dr. David Adrian Lilienstein accept Medicare?
Yes. CMS data shows Dr. Lilienstein billed Medicare for 57 services in 2024, and Dr. Lilienstein accepts Medicare assignment.
How many Medicare patients does Dr. David Adrian Lilienstein see?
CMS counts 63 Medicare patients who saw Dr. Lilienstein in 2024, with an average age of 67.
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Is Dr. David Adrian Lilienstein board certified?
Yes. Dr. Lilienstein is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. David Adrian Lilienstein bill to Medicare?
In 2024, Dr. Lilienstein's most billed Medicare services were emergency department visit (99284) and emergency department visit (99285).
Where did Dr. David Adrian Lilienstein go to medical school?
Dr. Lilienstein graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2003.
What drugs does Dr. David Adrian Lilienstein prescribe most?
In 2024 Medicare Part D data, Dr. Lilienstein's most prescribed drugs by claims were Ibuprofen, Prednisone and Ondansetron ODT.
How long has Dr. David Adrian Lilienstein been practicing?
Dr. Lilienstein graduated from medical school in 2003, 23 years ago.
What insurance does Dr. David Adrian Lilienstein accept?
Dr. Lilienstein is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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