Dr. John Lin, MD
- Medicare services, 2024
- 278
- Medicare patients, 2024
- 195
- Part D claims, 2024
- 143
- Hospital affiliations
- 4
- Industry payments
- $4,561
- Practice address
- 1701 Santa Anita Ave, South El Monte, CA 91733
- Practice phone
- Call (626) 350-7975
- 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. John Lin is an internist in South El Monte, California
Dr. Lin practices at Greater El Monte Community Hospital in South El Monte, California, part of AHMC Healthcare.
Dr. Lin's NPI, 1689602609, was assigned on June 29, 2006. Dr. Lin graduated from David Geffen School of Medicine at UCLA in 1991. Dr. Lin holds California license G77035.
- NPI
- 1689602609NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4486550373
- NPI enumeration date
- June 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 350-7975
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Lin practices at Greater El Monte Community Hospital in South El Monte, California
Dr. Lin's primary practice is Greater El Monte Community Hospital, at 1701 Santa Anita Ave, South El Monte, CA 91733 in Los Angeles County. The practice phone is (626) 350-7975.
- Greater El Monte Community Hospital1701 Santa Anita Ave, South El Monte, CA 91733 · Los Angeles CountyPhone(626) 350-7975
Source: Dmand AI Affiliation Data
Dr. John Lin is affiliated with 4 sites of care and 5 medical groups
Dr. Lin's primary practice is Greater El Monte Community Hospital in South El Monte, California, part of AHMC Healthcare. Dr. Lin is also affiliated with Hemet Global Medical Center. The medical group on file is GEM Medical Group (GEM, Emergency Medicine Providers). Dmand AI also links Dr. Lin to 2 more hospitals and 4 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lin practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greater El Monte Community Hospital | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John 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 internal medicine by the American Board of Internal Medicine. Dr. Lin is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists chronic hypertension and chronic kidney disease 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. John Lin billed Medicare for 278 services in 2024
CMS data shows 278 Medicare services from Dr. Lin across 5 procedure codes in 2024, for 195 Medicare patients. Medicare paid $28,042 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1952024: 1912%
- Tests and treatments
- 2023: 812024: 749%
- Imaging
- 2023: 02024: 13
Dr. Lin compared with the California median for internists, 2024
- Dr. Lin
- California median
- Medicare services
- 278vs 36123% below
- Medicare patients
- 195vs 15129% above
- Part D claims
- 37vs 42191% below
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. John Lin treated 195 Medicare patients in 2024, average age 74
CMS counts 195 Medicare patients who saw Dr. Lin in 2024. The largest group is 65 to 74, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 79% are also on Medicaid. Their average risk score is 2.52, 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 53% women.
Dr. Lin's Medicare patients by age, 2024
Dr. Lin's Medicare patients by sex, 2024
- Women9247%
- Men10353%
Chronic conditions among Dr. Lin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders53%
- Diabetes52%
- Chronic kidney disease49%
- Alzheimer's and dementia48%
- Depression48%
- Anxiety47%
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
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Lin wrote 143 Medicare Part D claims in 2024
In 2024, Dr. Lin wrote 143 Medicare Part D claims for 64 patients. 88% of them were for generic drugs. CMS names the drug for 37 of them, across 3 drugs with 11 or more claims each, at $254 in total drug cost. In 2023, CMS named 14 claims across 1 drug.
Dr. Lin's Part D claims by kind of drug, 2024
- Generic126 claims88%
- Brand-name and other17 claims12%
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
- Opioids9%13 of 143 claims
- Antibiotics25%36 of 143 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: 142024: 37164%
Drugs named by CMS: 3 in 2024, 1 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. John Lin takes part in Medicare
Dr. Lin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of nail tissue: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Lin received $4,561 in industry payments from 2017 to 2025
CMS Open Payments shows 6 general payments to Dr. Lin from 2 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 66% of the total. Covidien LP paid the most, $4,415.
General payments to Dr. Lin by program year, 2017 to 2025
General payments to Dr. Lin by kind, 2017 to 2025
- Consulting fees$3,00066%
- Food and beverage$1,01522%
- Travel and lodging$54612%
Companies that paid Dr. Lin the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Lin graduated from David Geffen School of Medicine at UCLA
Dr. Lin graduated from David Geffen School of Medicine at UCLA in 1991.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John Lin accepts plans from 15 insurance carriers
Dr. Lin is in network with 15 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- HCSC
- Aetna
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Lin accepts, by number of carriers
- PPO9
- Medicare7
- HMO6
- EPO3
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. John 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)Doctors and Clinicians Utilization Data (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. John 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. John Lin's NPI number?
Dr. John Lin's NPI number is 1689602609. It was assigned on June 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Lin?
Dr. John Lin is an internist in South El Monte, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John Lin practice?
Dr. Lin practices at 1701 Santa Anita Ave, South El Monte, CA 91733. Dr. Lin's primary practice is Greater El Monte Community Hospital in South El Monte, California, part of AHMC Healthcare. Dmand AI also links Dr. Lin to 2 hospitals and 4 medical groups.
What is Dr. John Lin's office phone number?
The practice phone on file for Dr. Lin is (626) 350-7975.
What is Dr. John Lin's medical license number?
Dr. Lin holds California license G77035.
Which hospitals is Dr. John Lin affiliated with?
Dr. Lin practices at Greater El Monte Community Hospital in South El Monte, California. Dr. Lin is also affiliated with Hemet Global Medical Center. Dmand AI links Dr. Lin to 2 more hospitals.
What medical group is Dr. John Lin part of?
Dr. Lin is linked to GEM Medical Group (GEM, Emergency Medicine Providers). Dmand AI links Dr. Lin to 4 more medical groups.
Does Dr. John Lin accept Medicare?
Yes. CMS data shows Dr. Lin billed Medicare for 278 services in 2024, and Dr. Lin accepts Medicare assignment.
How many Medicare patients does Dr. John Lin see?
CMS counts 195 Medicare patients who saw Dr. Lin in 2024, with an average age of 74.
Is Dr. John Lin board certified?
Yes. Dr. Lin is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. John Lin bill to Medicare?
In 2024, Dr. Lin's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. John Lin go to medical school?
Dr. Lin graduated from David Geffen School of Medicine at UCLA in 1991.
What drugs does Dr. John Lin prescribe most?
In 2024 Medicare Part D data, Dr. Lin's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Cephalexin and Donepezil HCl.
Has Dr. John Lin received payments from drug or device companies?
CMS Open Payments shows $4,561 in general payments to Dr. Lin from 2 companies from 2017 to 2025. The largest total came from Covidien LP.
How long has Dr. John Lin been practicing?
Dr. Lin graduated from medical school in 1991, 35 years ago.
What insurance does Dr. John Lin accept?
Dr. Lin is in network with 15 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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