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Dr. Eric C. Feng, DO
- Medicare services, 2024
- 47
- Medicare patients, 2024
- 30
- Part D claims, 2024
- 548
- Publications
- 2
- Hospital affiliations
- 2
- 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
Find Dr. Feng'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. Eric C. Feng is an internist in Baldwin Park, California
Dr. Feng practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente.
Dr. Feng's NPI, 1518371798, was assigned on June 16, 2014. Dr. Feng graduated from WesternU College of Osteopathic Medicine of the Pacific in 2014. Dr. Feng holds California license 20A15096.
- NPI
- 1518371798NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204053937
- NPI enumeration date
- June 16, 2014
- 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
- 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. Eric C. Feng practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California
Dr. Feng'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
Dr. Eric C. Feng is affiliated with 2 sites of care and 2 medical groups
Dr. Feng's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. Dr. Feng is also affiliated with Vallejo Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Feng to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Eric C. Feng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feng 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 site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Eric C. Feng is one of 16,751 internists in California
Internal medicine is Dr. Feng's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Feng is board certified in internal medicine by the American Board of Internal Medicine. Dr. Feng is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure, anemia, congestive heart failure and stroke among the conditions Dr. Feng treats.
Internists near Dr. Feng
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. Eric C. Feng billed Medicare for 47 services in 2024
CMS data shows 47 Medicare services from Dr. Feng across 2 procedure codes in 2024, for 30 Medicare patients. Medicare paid $4,950 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Feng's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 332024: 4742%
Dr. Feng compared with the California median for internists, 2024
- Dr. Feng
- California median
- Medicare services
- 47vs 36187% below
- Medicare patients
- 30vs 15180% below
- Part D claims
- 248vs 42141% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Feng'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. Feng?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Feng and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric C. Feng treated 30 Medicare patients in 2024, average age 70
CMS counts 30 Medicare patients who saw Dr. Feng in 2024. The largest group is 65 to 74, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 3.85, 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. Feng's median patient age at 72, with 59% women.
Dr. Feng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Dr. Feng's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes57%
- Chronic kidney disease50%
- Ischemic heart disease50%
- Heart failure47%
- Arthritis37%
Share of Medicare patients with each condition. A patient can have several.
Dr. Feng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Eric C. Feng wrote 548 Medicare Part D claims in 2024
In 2024, Dr. Feng wrote 548 Medicare Part D claims for 179 patients. 88% of them were for generic drugs. CMS names the drug for 248 of them, across 13 drugs with 11 or more claims each, at $3,000 in total drug cost. In 2023, CMS named 217 claims across 13 drugs.
Dr. Feng's Part D claims by kind of drug, 2024
- Generic484 claims88%
- Brand-name and other64 claims12%
Dr. Feng'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. Feng's Part D claims, 2024
- Opioids4%21 of 548 claims
- Antibiotics12%66 of 548 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: 2172024: 24814%
Drugs named by CMS: 13 in 2024, 13 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. Eric C. Feng takes part in Medicare
Dr. Feng 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. Eric C. Feng has 2 publications on record
Dmand AI links 2 papers to Dr. Feng, published from 2017 to 2020. Dr. Feng's most frequent co-author is Mark Connors, MD.
Dr. Feng's most frequent co-authors
Recent publications by Dr. Feng
Mayo Clin Proc Innov Qual Outcomes
See who Dr. Feng researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Feng works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Eric C. Feng received $266 in industry payments from 2016 to 2017
CMS Open Payments shows 3 general payments to Dr. Feng from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $141.
General payments to Dr. Feng by program year, 2016 to 2017
Companies that paid Dr. Feng the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eric C. Feng graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Feng graduated from WesternU College of Osteopathic Medicine of the Pacific in 2014.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Eric C. Feng accepts plans from 2 insurance carriers
Dr. Feng is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
- CMS Medicare
Plan types Dr. Feng accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Eric C. Feng'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 |
| 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 Dr. Eric C. Feng
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. Eric C. Feng's NPI number?
Dr. Eric C. Feng's NPI number is 1518371798. It was assigned on June 16, 2014, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric C. Feng?
Dr. Eric C. Feng is an internist in Baldwin Park, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Eric C. Feng practice?
Dr. Feng practices at 1011 Baldwin Park Blvd, Baldwin Park, CA 91706. Dr. Feng's primary practice is Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California, part of Kaiser Permanente. Dmand AI also links Dr. Feng to 1 medical group.
What is Dr. Eric C. Feng's office phone number?
The practice phone on file for Dr. Feng is (626) 851-1011.
What is Dr. Eric C. Feng's medical license number?
Dr. Feng holds California license 20A15096.
Which hospitals is Dr. Eric C. Feng affiliated with?
Dr. Feng practices at Kaiser Permanente Baldwin Park Medical Center in Baldwin Park, California. Dr. Feng is also affiliated with Vallejo Medical Center.
What medical group is Dr. Eric C. Feng part of?
Dr. Feng is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Feng to 1 more medical group.
Does Dr. Eric C. Feng accept Medicare?
Yes. CMS data shows Dr. Feng billed Medicare for 47 services in 2024, and Dr. Feng accepts Medicare assignment.
How many Medicare patients does Dr. Eric C. Feng see?
CMS counts 30 Medicare patients who saw Dr. Feng in 2024, with an average age of 70.
Is Dr. Eric C. Feng board certified?
Yes. Dr. Feng is board certified in internal medicine by the American Board of Internal Medicine.
Show 8 more questionsShow fewer questions
What services does Dr. Eric C. Feng bill to Medicare?
In 2024, Dr. Feng's most billed Medicare services were hospital inpatient care (99233) and hospital inpatient care (99223).
Where did Dr. Eric C. Feng go to medical school?
Dr. Feng graduated from WesternU College of Osteopathic Medicine of the Pacific in 2014.
What drugs does Dr. Eric C. Feng prescribe most?
In 2024 Medicare Part D data, Dr. Feng's most prescribed drugs by claims were Furosemide, Atorvastatin Calcium and Hydralazine HCl.
Has Dr. Eric C. Feng received payments from drug or device companies?
CMS Open Payments shows $266 in general payments to Dr. Feng from 2 companies from 2016 to 2017. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Eric C. Feng been practicing?
Dr. Feng graduated from medical school in 2014, 12 years ago.
Does Dr. Eric C. Feng do research?
Dmand AI links 2 publications to Dr. Feng, published from 2017 to 2020.
Who does Dr. Eric C. Feng publish with?
Dr. Feng's most frequent co-authors are Mark Connors, MD (1 shared paper).
What insurance does Dr. Eric C. Feng accept?
Dr. Feng is in network with 2 carriers, including Kaiser Permanente and CMS Medicare. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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