Dr. Daniel James Lewis, MD
- Medicare services, 2024
- 376
- Medicare patients, 2024
- 103
- Part D claims, 2024
- 4,315
- Hospital affiliations
- 1
- Industry payments
- $1,361
- Practice address
- 18133 Ventura Blvd. Ste 400, Tarzana, CA 91356
- Practice phone
- Call (714) 635-6272
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
United Pacific Surgery Center
Surgery Center - Medicare-Certified · Tarzana, California
Find Dr. Lewis' professional email, personal email and mobile number
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Dr. Daniel James Lewis is an internist in Tarzana, California
Dr. Lewis practices at United Pacific Surgery Center in Tarzana, California.
Dr. Lewis' NPI, 1508974718, was assigned on August 28, 2006. Dr. Lewis graduated from University of California, Geffen School of Medicine in 1996. Dr. Lewis holds California license A70094.
- NPI
- 1508974718NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204919103
- NPI enumeration date
- August 28, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (714) 635-6272
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 56
- Medical school graduation
- 1996
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Daniel James Lewis practices at United Pacific Surgery Center in Tarzana, California
Dr. Lewis' primary practice is United Pacific Surgery Center, at 18133 Ventura Blvd. Ste 400, Tarzana, CA 91356. The practice phone is (714) 635-6272.
- United Pacific Surgery Center18133 Ventura Blvd. Ste 400, Tarzana, CA 91356Phone(714) 635-6272
Source: Dmand AI Affiliation Data
Dr. Daniel James Lewis is affiliated with 4 sites of care and 1 medical group
Dr. Lewis' primary practice is United Pacific Surgery Center in Tarzana, California. Dr. Lewis is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Facey Medical Group. Dmand AI also links Dr. Lewis to 1 more group practice or clinic and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel James Lewis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lewis practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| United Pacific Surgery Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Daniel James Lewis is one of 16,751 internists in California
Internal medicine is Dr. Lewis' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lewis is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Lewis
Counts of internists 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. Daniel James Lewis billed Medicare for 376 services in 2024
CMS data shows 376 Medicare services from Dr. Lewis across 8 procedure codes in 2024, for 103 Medicare patients. Medicare paid $19,829 for them.
Dr. Lewis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1332024: 16222%
- Surgery
- 2023: 1052024: 11510%
- Other services
- 2023: 272024: 85215%
- Imaging
- 2023: 122024: 1417%
Where Dr. Lewis' Medicare services took place, 2024
- In an office35895%
- In a facility185%
Dr. Lewis compared with the California median for internists, 2024
- Dr. Lewis
- California median
- Medicare services
- 376vs 361Close to median
- Medicare patients
- 103vs 15132% below
- Part D claims
- 3,738vs 4218.9 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lewis' 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. Lewis and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Daniel James Lewis treated 103 Medicare patients in 2024, average age 74
CMS counts 103 Medicare patients who saw Dr. Lewis in 2024. The largest group is 65 to 74, with 48 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% 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. Lewis' median patient age at 61, with 47% women.
Dr. Lewis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Lewis' Medicare patients by sex, 2024
- Women4847%
- Men5553%
Chronic conditions among Dr. Lewis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Diabetes32%
- Chronic kidney disease28%
- Ischemic heart disease27%
- Mood disorders27%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lewis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women47%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Daniel James Lewis wrote 4,315 Medicare Part D claims in 2024
In 2024, Dr. Lewis wrote 4,315 Medicare Part D claims for 346 patients. 89% of them were for generic drugs. CMS names the drug for 3,738 of them, across 89 drugs with 11 or more claims each, at $371,029 in total drug cost. In 2023, CMS named 3,436 claims across 77 drugs.
Dr. Lewis' Part D claims by kind of drug, 2024
- Generic3,860 claims89%
- Brand-name428 claims10%
- Other27 claims1%
Dr. Lewis' 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. Lewis' Part D claims, 2024
- Opioids4%190 of 4,315 claims
- Antibiotics1%56 of 4,315 claims
- Antipsychotics, patients 65 and over0%18 of 4,315 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: 3,4362024: 3,7389%
Drugs named by CMS: 89 in 2024, 77 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. Daniel James Lewis offers telehealth to Medicare patients
Dr. Lewis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lewis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Daniel James Lewis received $1,361 in industry payments from 2016 to 2022
CMS Open Payments shows 84 general payments to Dr. Lewis from 15 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 98% of the total. Novo Nordisk Inc paid the most, $309.
General payments to Dr. Lewis by program year, 2016 to 2022
General payments to Dr. Lewis by kind, 2016 to 2022
- Food and beverage$1,32898%
- Education$332%
Companies that paid Dr. Lewis the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel James Lewis graduated from University of California, Geffen School of Medicine
Dr. Lewis graduated from University of California, Geffen School of Medicine in 1996.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Daniel James Lewis'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) |
| 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. Daniel James Lewis
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. Daniel James Lewis' NPI number?
Dr. Daniel James Lewis' NPI number is 1508974718. It was assigned on August 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel James Lewis?
Dr. Daniel James Lewis is an internist in Tarzana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Daniel James Lewis practice?
Dr. Lewis practices at 18133 Ventura Blvd. Ste 400, Tarzana, CA 91356. Dr. Lewis' primary practice is United Pacific Surgery Center in Tarzana, California. Dmand AI also links Dr. Lewis to 1 group practice or clinic and 1 home health agency.
What is Dr. Daniel James Lewis' office phone number?
The practice phone on file for Dr. Lewis is (714) 635-6272.
What is Dr. Daniel James Lewis' medical license number?
Dr. Lewis holds California license A70094.
Which hospitals is Dr. Daniel James Lewis affiliated with?
Dr. Lewis is affiliated with Providence Holy Cross Medical Center.
What medical group is Dr. Daniel James Lewis part of?
Dr. Lewis is linked to Facey Medical Group.
Does Dr. Daniel James Lewis accept Medicare?
Yes. CMS data shows Dr. Lewis billed Medicare for 376 services in 2024, and Dr. Lewis accepts Medicare assignment.
Does Dr. Daniel James Lewis offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Lewis as offering telehealth services.
How many Medicare patients does Dr. Daniel James Lewis see?
CMS counts 103 Medicare patients who saw Dr. Lewis in 2024, with an average age of 74.
Show 5 more questionsShow fewer questions
What services does Dr. Daniel James Lewis bill to Medicare?
In 2024, Dr. Lewis' most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and medicare service (G2211).
Where did Dr. Daniel James Lewis go to medical school?
Dr. Lewis graduated from University of California, Geffen School of Medicine in 1996.
What drugs does Dr. Daniel James Lewis prescribe most?
In 2024 Medicare Part D data, Dr. Lewis' most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Dr. Daniel James Lewis received payments from drug or device companies?
CMS Open Payments shows $1,361 in general payments to Dr. Lewis from 15 companies from 2016 to 2022. The largest total came from Novo Nordisk Inc.
How long has Dr. Daniel James Lewis been practicing?
Dr. Lewis graduated from medical school in 1996, 30 years ago.
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