JAMA Otolaryngol Head Neck Surg
Genes, BRCA1Genes, BRCA2Germ-Line Mutation
Dr. Tim Ken Shen, MD
NPI1134514995PAC ID5193003978
- Medicare services, 2024
- 23
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 934
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shen'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. Tim Ken Shen is an internist in Fontana, California
Dr. Shen practices at Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
Dr. Shen's NPI, 1134514995, was assigned on March 30, 2015. Dr. Shen graduated from Ohio State College of Medicine in 2015. Dr. Shen holds California license A143876.
NPI and contact details
- NPI
- 1134514995NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193003978
- NPI enumeration date
- March 30, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-5000
- 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)
Dr. Tim Ken Shen practices at Fontana Medical Center in Fontana, California
Dr. Shen's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Source: Dmand AI Affiliation Data
Dr. Tim Ken Shen is affiliated with 1 site of care and 1 medical group
Dr. Shen's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente. 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 Dr. Tim Ken Shen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Shen practices
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.
Dr. Tim Ken Shen is one of 16,751 internists in California
Internal medicine is Dr. Shen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Shen is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Shen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic obstructive pulmonary disease (COPD) among the conditions Dr. Shen treats.
Internists near Dr. Shen
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. Tim Ken Shen billed Medicare for 23 services in 2024
CMS data shows 23 Medicare services from Dr. Shen across 1 procedure code in 2024, for 19 Medicare patients. Medicare paid $3,853 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 202423
Medicare patients19
Paid by Medicare$3,853
Procedure codes1
Dr. Shen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 192024: 2321%
Dr. Shen compared with the California median for internists, 2024
- Dr. Shen
- California median
- Medicare services
- 23vs 36194% below
- Medicare patients
- 19vs 15187% below
- Part D claims
- 843vs 4212.0 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Shen'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. Shen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Tim Ken Shen treated 19 Medicare patients in 2024, average age 71
CMS counts 19 Medicare patients who saw Dr. Shen in 2024. 75% of them have high blood pressure, and 68% have high cholesterol. Their average risk score is 1.88, 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. Shen's median patient age at 63, with 60% women.
Medicare patients, 202419
Average age71
Average risk score1.88
Chronic conditions among Dr. Shen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol68%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women60%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Tim Ken Shen wrote 934 Medicare Part D claims in 2024
In 2024, Dr. Shen wrote 934 Medicare Part D claims for 184 patients. 42% of them were for generic drugs. CMS names the drug for 843 of them, across 16 drugs with 11 or more claims each, at $363,204 in total drug cost. In 2023, CMS named 404 claims across 10 drugs.
Part D claims, 2024934
Drugs named by CMS16
Total drug cost$363,204
Part D patients184
Dr. Shen's Part D claims by kind of drug, 2024
- Generic388 claims42%
- Brand-name546 claims58%
Dr. Shen'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. Shen's Part D claims, 2024
- Antibiotics3%31 of 934 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: 4042024: 843109%
Drugs named by CMS: 16 in 2024, 10 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. Tim Ken Shen takes part in Medicare
Dr. Shen 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)
For MedTech and pharma teams
Find internists like Dr. Shen by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Tim Ken Shen has 1 publication on record
Dmand AI links 1 paper to Dr. Shen.
Papers1
Recent publications by Dr. Shen
See who Dr. Shen researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shen 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. Tim Ken Shen received $644 in industry payments from 2016 to 2025
CMS Open Payments shows 7 general payments to Dr. Shen from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 69% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $200.
General payments to Dr. Shen by program year, 2016 to 2025
General payments to Dr. Shen by kind, 2016 to 2025
$644in total
- Food and beverage$44469%
- Consulting fees$20031%
Companies that paid Dr. Shen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Tim Ken Shen graduated from Ohio State College of Medicine
Dr. Shen graduated from Ohio State College of Medicine in 2015.
- Medical school
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Dr. Tim Ken Shen accepts plans from 2 insurance carriers
Dr. Shen 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. Shen accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Tim Ken Shen'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. Tim Ken Shen
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. Tim Ken Shen's NPI number?
Dr. Tim Ken Shen's NPI number is 1134514995. It was assigned on March 30, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Tim Ken Shen?
Dr. Tim Ken Shen is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Tim Ken Shen practice?
Dr. Shen practices at 9961 Sierra Ave, Fontana, CA 92335. Dr. Shen's primary practice is Fontana Medical Center in Fontana, California, part of Kaiser Permanente.
What is Dr. Tim Ken Shen's office phone number?
The practice phone on file for Dr. Shen is (909) 427-5000.
What is Dr. Tim Ken Shen's medical license number?
Dr. Shen holds California license A143876.
Which hospitals is Dr. Tim Ken Shen affiliated with?
Dr. Shen practices at Fontana Medical Center in Fontana, California.
What medical group is Dr. Tim Ken Shen part of?
Dr. Shen is linked to Southern California Permanente Medical Group.
Does Dr. Tim Ken Shen accept Medicare?
Yes. CMS data shows Dr. Shen billed Medicare for 23 services in 2024, and Dr. Shen accepts Medicare assignment.
How many Medicare patients does Dr. Tim Ken Shen see?
CMS counts 19 Medicare patients who saw Dr. Shen in 2024, with an average age of 71.
Is Dr. Tim Ken Shen board certified?
Yes. Dr. Shen is board certified in critical care medicine by the American Board of Internal Medicine.
Show 7 more questionsShow fewer questions
What services does Dr. Tim Ken Shen bill to Medicare?
In 2024, Dr. Shen's most billed Medicare services were critical care (99291).
Where did Dr. Tim Ken Shen go to medical school?
Dr. Shen graduated from Ohio State College of Medicine in 2015.
What drugs does Dr. Tim Ken Shen prescribe most?
In 2024 Medicare Part D data, Dr. Shen's most prescribed drugs by claims were Albuterol Sulfate Hfa, Spiriva Respimat and Wixela Inhub.
Has Dr. Tim Ken Shen received payments from drug or device companies?
CMS Open Payments shows $644 in general payments to Dr. Shen from 7 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.
How long has Dr. Tim Ken Shen been practicing?
Dr. Shen graduated from medical school in 2015, 11 years ago.
Does Dr. Tim Ken Shen do research?
Dmand AI links 1 publication to Dr. Shen.
What insurance does Dr. Tim Ken Shen accept?
Dr. Shen 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.
Selling to internal medicine practices?
See internists in California by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card