Daniel Lew
- Medicare patients, 2024
- 11
- Part D claims, 2024
- 361
- Publications
- 14
- Hospital affiliations
- 2
- Industry payments
- $3,935
- Practice address
- 1011 Baldwin Park Blvd, Baldwin Park, CA 91706
- Practice phone
- Call (626) 851-1011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Daniel Lew'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.
Daniel Lew is a gastroenterologist in Baldwin Park, California
Daniel Lew practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
Daniel Lew's NPI, 1669859666, was assigned on April 29, 2015. Daniel Lew graduated from Medical College Of Wisconsin in 2015. Daniel Lew holds California license A144634.
- NPI
- 1669859666NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3375945660
- NPI enumeration date
- April 29, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 851-1011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Daniel Lew practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California
Daniel Lew's primary practice is Kaiser Permanente Baldwin Park Medical Center, at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706 in Los Angeles County. The practice phone is (626) 851-1011.
- Kaiser Permanente Baldwin Park Medical Center1011 Baldwin Park Blvd, Baldwin Park, CA 91706 · Los Angeles CountyPhone(626) 851-1011
Source: Dmand AI Affiliation Data
Daniel Lew is affiliated with 2 sites of care and 1 medical group
Daniel Lew's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. Daniel Lew is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Daniel Lew's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Daniel Lew practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Baldwin Park Medical Center | Available with a free account |
| +1 more affiliated site | 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 Kaiser Permanente and 6.2K+ hospitals, with verified contacts in the same login.
Daniel Lew is one of 1,977 gastroenterologists in California
Gastroenterology is Daniel Lew's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Daniel Lew is board certified in gastroenterology by the American Board of Internal Medicine. Daniel Lew is licensed in California.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
Clinical focus
Dmand AI lists colonoscopy and upper GI endoscopy among the conditions Daniel Lew treats.
Gastroenterologists near Daniel Lew
Counts of gastroenterologists 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
Daniel Lew treated 11 Medicare patients in 2024, average age 67
CMS counts 11 Medicare patients who saw Daniel Lew in 2024. The largest group is 85 and over, with 0 patients. Their average risk score is 1.25, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Daniel Lew's median patient age at 64, with 63% women.
Daniel Lew's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Daniel Lew's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Daniel Lew wrote 361 Medicare Part D claims in 2024
In 2024, Daniel Lew wrote 361 Medicare Part D claims for 159 patients. 86% of them were for generic drugs. CMS names the drug for 252 of them, across 6 drugs with 11 or more claims each, at $35,283 in total drug cost. In 2023, CMS named 193 claims across 6 drugs.
Daniel Lew's Part D claims by kind of drug, 2024
- Generic311 claims86%
- Brand-name and other50 claims14%
Daniel Lew'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 Daniel Lew's Part D claims, 2024
- Antibiotics16%59 of 361 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: 1932024: 25231%
Drugs named by CMS: 6 in 2024, 6 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 Daniel Lew takes part in Medicare
Daniel Lew accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Daniel Lew has 14 publications on record
Dmand AI links 14 papers to Daniel Lew, published from 2014 to 2022. 2016 was the busiest year, with 3. The most frequent topics are Saccharomyces cerevisiae, Cell Polarity and Saccharomyces cerevisiae Proteins. Daniel Lew has published most often in Curr Biol. Daniel Lew's most frequent co-author is Kyle David Moran, DO.
Daniel Lew's papers by year, 2014 to 2022
Topics Daniel Lew writes about most
- Saccharomyces cerevisiae
- Cell Polarity
- Saccharomyces cerevisiae Proteins
- cdc42 GTP-Binding Protein, Saccharomyces cerevisiae
- Signal Transduction
- Actin Cytoskeleton
- Cell Cycle Proteins
- Cell Membrane
Daniel Lew's most frequent co-authors
Recent publications by Daniel Lew
Curr Biol
Mol Biol Cell
See who Daniel Lew researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Daniel Lew works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Daniel Lew received $3,935 in industry payments from 2017 to 2025
CMS Open Payments shows 35 general payments to Daniel Lew from 12 drug and device companies from 2017 to 2025. Travel and lodging make up the largest share, 53% of the total. Boston Scientific Corporation paid the most, $2,864.
General payments to Daniel Lew by program year, 2017 to 2025
General payments to Daniel Lew by kind, 2017 to 2025
- Travel and lodging$2,07253%
- Food and beverage$1,86347%
Companies that paid Daniel Lew the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Daniel Lew graduated from Medical College Of Wisconsin
Daniel Lew graduated from Medical College Of Wisconsin in 2015.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Daniel Lew accepts plans from 7 insurance carriers
Daniel Lew is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Kaiser Permanente and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Kaiser Permanente
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Daniel Lew accepts, by number of carriers
- Medicare5
- PPO4
- HMO3
- POS2
- EPO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Daniel Lew'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 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)Doctors and Clinicians Utilization Data (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 |
| 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 Daniel Lew
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Daniel Lew's NPI number?
Daniel Lew's NPI number is 1669859666. It was assigned on April 29, 2015, and it is active in the NPI Registry.
What does Daniel Lew specialize in?
Daniel Lew is a gastroenterologist in Baldwin Park, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Daniel Lew practice?
Daniel Lew practices at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706. Daniel Lew's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
What is Daniel Lew's office phone number?
The practice phone on file for Daniel Lew is (626) 851-1011.
What is Daniel Lew's medical license number?
Daniel Lew holds California license A144634.
Which hospitals is Daniel Lew affiliated with?
Daniel Lew practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California. Daniel Lew is also affiliated with Cedars-Sinai Medical Center.
What medical group is Daniel Lew part of?
Daniel Lew is linked to Southern California Permanente Medical Group.
Does Daniel Lew accept Medicare?
Yes. CMS lists Daniel Lew as accepting Medicare assignment.
How many Medicare patients does Daniel Lew see?
CMS counts 11 Medicare patients who saw Daniel Lew in 2024, with an average age of 67.
Is Daniel Lew board certified?
Yes. Daniel Lew is board certified in gastroenterology by the American Board of Internal Medicine.
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Where did Daniel Lew go to medical school?
Daniel Lew graduated from Medical College Of Wisconsin in 2015.
What drugs does Daniel Lew prescribe most?
In 2024 Medicare Part D data, Daniel Lew's most prescribed drugs by claims were Omeprazole, Ciprofloxacin HCl and Lubiprostone.
Has Daniel Lew received payments from drug or device companies?
CMS Open Payments shows $3,935 in general payments to Daniel Lew from 12 companies from 2017 to 2025. The largest total came from Boston Scientific Corporation.
How long has Daniel Lew been practicing?
Daniel Lew graduated from medical school in 2015, 11 years ago.
Does Daniel Lew do research?
Dmand AI links 14 publications to Daniel Lew, published from 2014 to 2022.
Who does Daniel Lew publish with?
Daniel Lew's most frequent co-authors are Kyle David Moran, DO (1 shared paper).
What insurance does Daniel Lew accept?
Daniel Lew is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Kaiser Permanente and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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