Dr. Stephen En Ling, MD
- Medicare services, 2024
- 18
- Medicare patients, 2024
- 15
- Part D claims, 2024
- 3,540
- Hospital affiliations
- 1
- Industry payments
- $1,571
- Practice address
- 710 Lawrence Expy, Santa Clara, CA 95051
- Practice phone
- Call (408) 851-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Permanente Medical Group Inc
Santa Clara, California
Find Dr. Ling'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. Stephen En Ling is an internist in Santa Clara, California
Dr. Ling practices at Permanente Medical Group Inc in Santa Clara, California.
Dr. Ling's NPI, 1841337045, was assigned on January 30, 2007. Dr. Ling graduated from UC Davis School of Medicine in 1986. Dr. Ling's California license number on file is G61961.
- NPI
- 1841337045NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6901076413
- NPI enumeration date
- January 30, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (408) 851-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen En Ling practices at Permanente Medical Group Inc in Santa Clara, California
Dr. Ling's primary practice is Permanente Medical Group Inc, at 710 Lawrence Expy, Santa Clara, CA 95051 in Santa Clara County. The practice phone is (408) 851-1000.
- Permanente Medical Group Inc710 Lawrence Expy, Santa Clara, CA 95051 · Santa Clara CountyPhone(408) 851-1000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen En Ling is affiliated with 3 sites of care and 1 medical group
Dr. Ling's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dr. Ling is also affiliated with Santa Clara Medical Center. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Ling to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen En Ling's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ling practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Permanente Medical Group Inc | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen En Ling is one of 16,751 internists in California
Internal medicine is Dr. Ling's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Ling is board certified in internal medicine by the American Board of Internal Medicine. Dr. Ling has a license on file in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Ling
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. Stephen En Ling billed Medicare for 18 services in 2024
CMS data shows 18 Medicare services from Dr. Ling across 1 procedure code in 2024, all of them office visits, for 15 Medicare patients. Medicare paid $886 for them. Every service was in an office.
Dr. Ling's Medicare services by type, 2016 to 2024
- 2016
- 2024
- Office and hospital visits
- 2016: 2942024: 1894%
- Tests and treatments
- 2016: 132024: 0100%
- Other services
- 2016: 402024: 0100%
Dr. Ling compared with the California median for internists, 2024
- Dr. Ling
- California median
- Medicare services
- 18vs 36195% below
- Medicare patients
- 15vs 15190% below
- Part D claims
- 2,949vs 4217.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Ling'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. Ling and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen En Ling treated 15 Medicare patients in 2024, average age 67
CMS counts 15 Medicare patients who saw Dr. Ling in 2024. Their average risk score is 0.71, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ling's median patient age at 65, with 42% women.
Dr. Ling's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women42%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen En Ling wrote 3,540 Medicare Part D claims in 2024
In 2024, Dr. Ling wrote 3,540 Medicare Part D claims for 460 patients. 93% of them were for generic drugs. CMS names the drug for 2,949 of them, across 71 drugs with 11 or more claims each, at $97,359 in total drug cost. In 2023, CMS named 2,781 claims across 67 drugs.
Dr. Ling's Part D claims by kind of drug, 2024
- Generic3,291 claims93%
- Brand-name231 claims7%
- Other18 claims1%
Dr. Ling'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. Ling's Part D claims, 2024
- Opioids2%60 of 3,540 claims
- Antibiotics2%86 of 3,540 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: 2,7812024: 2,9496%
Drugs named by CMS: 71 in 2024, 67 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. Stephen En Ling takes part in Medicare
Dr. Ling 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. Stephen En Ling received $1,571 in industry payments in 2016
CMS Open Payments shows 38 general payments to Dr. Ling from 11 drug and device companies in 2016. Food and beverage make up the largest share, 99% of the total. Janssen Pharmaceuticals, Inc paid the most, $453.
General payments to Dr. Ling by kind, 2016 to 2016
- Food and beverage$1,55199%
- Education$201%
Companies that paid Dr. Ling the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen En Ling graduated from UC Davis School of Medicine
Dr. Ling graduated from UC Davis School of Medicine in 1986.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Stephen En Ling accepts plans from 2 insurance carriers
Dr. Ling 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. Ling accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Stephen En Ling'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| 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. Stephen En Ling
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. Stephen En Ling's NPI number?
Dr. Stephen En Ling's NPI number is 1841337045. It was assigned on January 30, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen En Ling?
Dr. Stephen En Ling is an internist in Santa Clara, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stephen En Ling practice?
Dr. Ling practices at 710 Lawrence Expy, Santa Clara, CA 95051. Dr. Ling's primary practice is Permanente Medical Group Inc in Santa Clara, California. Dmand AI also links Dr. Ling to 1 group practice or clinic.
What is Dr. Stephen En Ling's office phone number?
The practice phone on file for Dr. Ling is (408) 851-1000.
What is Dr. Stephen En Ling's medical license number?
Dr. Ling's California license number on file is G61961.
Which hospitals is Dr. Stephen En Ling affiliated with?
Dr. Ling is affiliated with Santa Clara Medical Center.
What medical group is Dr. Stephen En Ling part of?
Dr. Ling is linked to The Permanente Medical Group, Inc.
Does Dr. Stephen En Ling accept Medicare?
Yes. CMS data shows Dr. Ling billed Medicare for 18 services in 2024, and Dr. Ling accepts Medicare assignment.
How many Medicare patients does Dr. Stephen En Ling see?
CMS counts 15 Medicare patients who saw Dr. Ling in 2024, with an average age of 67.
Is Dr. Stephen En Ling board certified?
Yes. Dr. Ling is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Stephen En Ling bill to Medicare?
In 2024, Dr. Ling's most billed Medicare services were office visit, established patient (99213).
Where did Dr. Stephen En Ling go to medical school?
Dr. Ling graduated from UC Davis School of Medicine in 1986.
What drugs does Dr. Stephen En Ling prescribe most?
In 2024 Medicare Part D data, Dr. Ling's most prescribed drugs by claims were Amlodipine Besylate, Atorvastatin Calcium and Losartan Potassium.
Has Dr. Stephen En Ling received payments from drug or device companies?
CMS Open Payments shows $1,571 in general payments to Dr. Ling from 11 companies from 2016 to 2016. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Stephen En Ling been practicing?
Dr. Ling graduated from medical school in 1986, 40 years ago.
What insurance does Dr. Stephen En Ling accept?
Dr. Ling 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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