Dr. Leslie Chen, DO
- Medicare services, 2024
- 462
- Medicare patients, 2024
- 272
- Part D claims, 2024
- 262
- Publications
- 2
- Affiliated sites
- 2
- Practice address
- 3200 Kearney Street, Fremont, CA 94538
- Practice phone
- Call (510) 498-2812
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Palo Alto Medical Foundation-Fremont Center
Mammography / Breast Imaging Center · Fremont, California
Find Dr. Chen'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. Leslie Chen is an emergency medicine physician in Fremont, California
Dr. Chen practices at Palo Alto Medical Foundation-Fremont Center in Fremont, California.
Dr. Chen's NPI, 1023428331, was assigned on May 8, 2014. Dr. Chen graduated from Touro University Nevada in 2014. Dr. Chen's California license number on file is 20A14391.
- NPI
- 1023428331NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789968884
- NPI enumeration date
- May 8, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 498-2812
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Leslie Chen practices at Palo Alto Medical Foundation-Fremont Center in Fremont, California
Dr. Chen's primary practice is Palo Alto Medical Foundation-Fremont Center, at 3200 Kearney Street, Fremont, CA 94538. The practice phone is (510) 498-2812.
- Palo Alto Medical Foundation-Fremont Center3200 Kearney Street, Fremont, CA 94538Phone(510) 498-2812
Source: Dmand AI Affiliation Data
Dr. Leslie Chen is affiliated with 2 sites of care and 1 medical group
Dr. Chen's primary practice is Palo Alto Medical Foundation-Fremont Center in Fremont, California. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Chen to 1 more group practice or clinic, named with a free account. Dr. Chen's employer is on file too: a breast imaging center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Leslie Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Palo Alto Medical Foundation-Fremont 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. Leslie Chen is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Chen's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chen is board certified in family medicine by the American Board of Family Medicine. Dr. Chen has a license on file in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Chen
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. Leslie Chen billed Medicare for 462 services in 2024
CMS data shows 462 Medicare services from Dr. Chen across 10 procedure codes in 2024, for 272 Medicare patients. Medicare paid $33,954 for them. Every service was in an office.
Dr. Chen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3292024: 27816%
- Lab and pathology
- 2023: 762024: 828%
- Drugs given in the office
- 2023: 02024: 76
- Tests and treatments
- 2023: 402024: 2635%
Dr. Chen compared with the California median for emergency medicine physicians, 2024
- Dr. Chen
- California median
- Medicare services
- 462vs 26574% above
- Medicare patients
- 272vs 24312% above
- Part D claims
- 112vs 6281% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Chen'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. Chen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chen 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. Leslie Chen treated 272 Medicare patients in 2024, average age 76
CMS counts 272 Medicare patients who saw Dr. Chen in 2024. The largest group is 65 to 74, with 107 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 26% are also on Medicaid. Their average risk score is 1.09, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Chen's median patient age at 45, with 57% women.
Dr. Chen's Medicare patients by age, 2024
Dr. Chen's Medicare patients by sex, 2024
- Women17263%
- Men10037%
Chronic conditions among Dr. Chen's Medicare patients, 2024
- High cholesterol75%
- High blood pressure72%
- Arthritis47%
- Diabetes36%
- Ischemic heart disease31%
- Chronic kidney disease26%
- Osteoporosis23%
- Anxiety19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chen'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
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Leslie Chen wrote 262 Medicare Part D claims in 2024
In 2024, Dr. Chen wrote 262 Medicare Part D claims for 183 patients. 84% of them were for generic drugs. CMS names the drug for 112 of them, across 5 drugs with 11 or more claims each, at $1,667 in total drug cost. In 2023, CMS named 158 claims across 7 drugs.
Dr. Chen's Part D claims by kind of drug, 2024
- Generic220 claims84%
- Brand-name and other42 claims16%
Dr. Chen'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. Chen's Part D claims, 2024
- Antibiotics39%103 of 262 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: 1582024: 11229%
Drugs named by CMS: 5 in 2024, 7 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. Leslie Chen takes part in Medicare
Dr. Chen 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. Leslie Chen has 2 publications on record
Dmand AI links 2 papers to Dr. Chen in 2012. Dr. Chen's most frequent co-author is Kellen Diamond Winden, MD, PhD.
Dr. Chen's most frequent co-authors
Recent publications by Dr. Chen
See who Dr. Chen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Chen works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Leslie Chen graduated from Touro University Nevada
Dr. Chen graduated from Touro University Nevada in 2014. Dr. Chen is a member of AOA.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Leslie Chen accepts plans from 6 insurance carriers
Dr. Chen is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Chen accepts, by number of carriers
- Medicare6
- PPO5
- HMO2
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Leslie Chen'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 |
| 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. Leslie Chen
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. Leslie Chen's NPI number?
Dr. Leslie Chen's NPI number is 1023428331. It was assigned on May 8, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Leslie Chen?
Dr. Leslie Chen is an emergency medicine physician in Fremont, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Leslie Chen practice?
Dr. Chen practices at 3200 Kearney Street, Fremont, CA 94538. Dr. Chen's primary practice is Palo Alto Medical Foundation-Fremont Center in Fremont, California. Dmand AI also links Dr. Chen to 1 group practice or clinic.
What is Dr. Leslie Chen's office phone number?
The practice phone on file for Dr. Chen is (510) 498-2812.
What is Dr. Leslie Chen's medical license number?
Dr. Chen's California license number on file is 20A14391.
What medical group is Dr. Leslie Chen part of?
Dr. Chen is linked to Palo Alto Foundation Medical Group.
Does Dr. Leslie Chen accept Medicare?
Yes. CMS data shows Dr. Chen billed Medicare for 462 services in 2024, and Dr. Chen accepts Medicare assignment.
How many Medicare patients does Dr. Leslie Chen see?
CMS counts 272 Medicare patients who saw Dr. Chen in 2024, with an average age of 76.
Is Dr. Leslie Chen board certified?
Yes. Dr. Chen is board certified in family medicine by the American Board of Family Medicine.
What services does Dr. Leslie Chen bill to Medicare?
In 2024, Dr. Chen's most billed Medicare services were office visit, established patient (99214), injected or infused drug (J0696) and office visit, established patient (99215).
Show 6 more questionsShow fewer questions
Where did Dr. Leslie Chen go to medical school?
Dr. Chen graduated from Touro University Nevada in 2014.
What drugs does Dr. Leslie Chen prescribe most?
In 2024 Medicare Part D data, Dr. Chen's most prescribed drugs by claims were Doxycycline Hyclate, Cephalexin and Albuterol Sulfate Hfa.
How long has Dr. Leslie Chen been practicing?
Dr. Chen graduated from medical school in 2014, 12 years ago.
Does Dr. Leslie Chen do research?
Dmand AI links 2 publications to Dr. Chen.
Who does Dr. Leslie Chen publish with?
Dr. Chen's most frequent co-authors are Kellen Diamond Winden, MD, PhD (1 shared paper).
What insurance does Dr. Leslie Chen accept?
Dr. Chen is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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