Dr. Jennifer Chwen-Yin Lin, MD
- Medicare services, 2024
- 27
- Medicare patients, 2024
- 19
- Part D claims, 2024
- 1,235
- Publications
- 5
- Hospital affiliations
- 1
- Practice address
- 222 W 39th Ave, San Mateo, CA 94403
- Practice phone
- Call (650) 573-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Lin'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. Jennifer Chwen-Yin Lin is an internist in San Mateo, California
Dr. Lin practices at San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.
Dr. Lin's NPI, 1336342708, was assigned on June 6, 2007. Dr. Lin graduated from Duke University School Of Medicine in 2007. Dr. Lin holds California license A111089.
- NPI
- 1336342708NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557528775
- NPI enumeration date
- June 6, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 573-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Chwen-Yin Lin practices at San Mateo Medical Center in San Mateo, California
Dr. Lin's primary practice is San Mateo Medical Center, at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County. The practice phone is (650) 573-2222.
- San Mateo Medical Center222 W 39th Ave, San Mateo, CA 94403 · San Mateo CountyPhone(650) 573-2222
Source: Dmand AI Affiliation Data
Dr. Jennifer Chwen-Yin Lin is affiliated with 2 sites of care and 1 medical group
Dr. Lin's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. The medical group on file is San Mateo Medical Center. Dmand AI also links Dr. Lin to 1 more skilled nursing facility, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jennifer Chwen-Yin Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Mateo 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 County of San Mateo, California and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Jennifer Chwen-Yin Lin is one of 16,751 internists in California
Internal medicine is Dr. Lin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lin is board certified in infectious disease by the American Board of Internal Medicine. Dmand AI has Dr. Lin's licenses on file in 2 states: California and Pennsylvania.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists hiv/aids, insomnia and tobacco use among the conditions Dr. Lin treats.
Internists near Dr. Lin
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. Jennifer Chwen-Yin Lin billed Medicare for 27 services in 2024
CMS data shows 27 Medicare services from Dr. Lin across 1 procedure code in 2024, all of them office visits, for 19 Medicare patients. Medicare paid $2,401 for them. Every service was in an office.
Dr. Lin's Medicare services by type, 2019 to 2024
- 2019
- 2024
- Office and hospital visits
- 2019: 192024: 2742%
Dr. Lin compared with the California median for internists, 2024
- Dr. Lin
- California median
- Medicare services
- 27vs 36193% below
- Medicare patients
- 19vs 15187% below
- Part D claims
- 969vs 4212.3 times
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lin'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. Lin?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lin and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Chwen-Yin Lin treated 19 Medicare patients in 2024, average age 68
CMS counts 19 Medicare patients who saw Dr. Lin in 2024. 74% of them have high cholesterol, and 63% have high blood pressure. Their average risk score is 2.31, 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. Lin's median patient age at 41, with 27% women.
Chronic conditions among Dr. Lin's Medicare patients, 2024
- High cholesterol74%
- High blood pressure63%
Share of Medicare patients with each condition. A patient can have several.
Dr. Lin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women27%
- Men72%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jennifer Chwen-Yin Lin wrote 1,235 Medicare Part D claims in 2024
In 2024, Dr. Lin wrote 1,235 Medicare Part D claims for 32 patients. 69% of them were for generic drugs. CMS names the drug for 969 of them, across 39 drugs with 11 or more claims each, at $981,096 in total drug cost. In 2023, CMS named 1,007 claims across 42 drugs.
Dr. Lin's Part D claims by kind of drug, 2024
- Generic846 claims69%
- Brand-name and other389 claims31%
Dr. Lin'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. Lin's Part D claims, 2024
- Opioids1%18 of 1,235 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: 1,0072024: 9694%
Drugs named by CMS: 39 in 2024, 42 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. Jennifer Chwen-Yin Lin takes part in Medicare
Dr. Lin 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. Jennifer Chwen-Yin Lin has 5 publications on record
Dmand AI links 5 papers to Dr. Lin, published from 2007 to 2023. 2023 was the busiest year, with 2. Dr. Lin's most frequent co-authors are Caitlin Ann Contag, MD, Vivian Levy, MD and Benjamin Alan Pinsky, MD, PhD.
Dr. Lin's papers by year, 2007 to 2023
Dr. Lin's most frequent co-authors
- Caitlin Ann Contag, MD2 shared papers
- Vivian Levy, MD2 shared papers
- Benjamin Alan Pinsky, MD, PhD2 shared papers
Recent publications by Dr. Lin
See who Dr. Lin researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Lin 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. Jennifer Chwen-Yin Lin graduated from Duke University School Of Medicine
Dr. Lin graduated from Duke University School Of Medicine in 2007.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Jennifer Chwen-Yin Lin accepts plans from 1 insurance carrier
Dr. Lin is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Jennifer Chwen-Yin Lin'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. Jennifer Chwen-Yin Lin
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. Jennifer Chwen-Yin Lin's NPI number?
Dr. Jennifer Chwen-Yin Lin's NPI number is 1336342708. It was assigned on June 6, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Chwen-Yin Lin?
Dr. Jennifer Chwen-Yin Lin is an internist in San Mateo, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Chwen-Yin Lin practice?
Dr. Lin practices at 222 W 39th Ave, San Mateo, CA 94403. Dr. Lin's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. Dmand AI also links Dr. Lin to 1 skilled nursing facility.
What is Dr. Jennifer Chwen-Yin Lin's office phone number?
The practice phone on file for Dr. Lin is (650) 573-2222.
What is Dr. Jennifer Chwen-Yin Lin's medical license number?
Dr. Lin holds California license A111089, one of the licenses on file in 2 states.
Which states has Dr. Jennifer Chwen-Yin Lin been licensed in?
Dmand AI has state licenses on file for Dr. Lin in California (2010 to 2027) and Pennsylvania (2007 to 2010).
Which hospitals is Dr. Jennifer Chwen-Yin Lin affiliated with?
Dr. Lin practices at San Mateo Medical Center in San Mateo, California.
What medical group is Dr. Jennifer Chwen-Yin Lin part of?
Dr. Lin is linked to San Mateo Medical Center.
Does Dr. Jennifer Chwen-Yin Lin accept Medicare?
Yes. CMS data shows Dr. Lin billed Medicare for 27 services in 2024, and Dr. Lin accepts Medicare assignment.
How many Medicare patients does Dr. Jennifer Chwen-Yin Lin see?
CMS counts 19 Medicare patients who saw Dr. Lin in 2024, with an average age of 68.
Show 8 more questionsShow fewer questions
Is Dr. Jennifer Chwen-Yin Lin board certified?
Yes. Dr. Lin is board certified in infectious disease by the American Board of Internal Medicine.
What services does Dr. Jennifer Chwen-Yin Lin bill to Medicare?
In 2024, Dr. Lin's most billed Medicare services were office visit, established patient (99214).
Where did Dr. Jennifer Chwen-Yin Lin go to medical school?
Dr. Lin graduated from Duke University School Of Medicine in 2007.
What drugs does Dr. Jennifer Chwen-Yin Lin prescribe most?
In 2024 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Atorvastatin Calcium, Biktarvy and Amlodipine Besylate.
How long has Dr. Jennifer Chwen-Yin Lin been practicing?
Dr. Lin graduated from medical school in 2007, 19 years ago.
Does Dr. Jennifer Chwen-Yin Lin do research?
Dmand AI links 5 publications to Dr. Lin, published from 2007 to 2023.
Who does Dr. Jennifer Chwen-Yin Lin publish with?
Dr. Lin's most frequent co-authors are Caitlin Ann Contag, MD (2 shared papers), Vivian Levy, MD (2 shared papers) and Benjamin Alan Pinsky, MD, PhD (2 shared papers).
What insurance does Dr. Jennifer Chwen-Yin Lin accept?
Dr. Lin is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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