Billy Lin
- Part D claims, 2024
- 138
- Hospital affiliations
- 2
- Industry payments
- $1,009
- Medical groups
- 4
- State license
- 1
- Practice address
- 9961 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 427-3910
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fontana Medical Center
Fontana, California
Find Billy 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.
Billy Lin is an internist in Fontana, California
Billy Lin practices at Fontana Medical Center in Fontana, California.
Billy Lin's NPI, 1073133419, was assigned on April 24, 2020. Billy Lin holds California license A181608.
- NPI
- 1073133419NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2163887027
- NPI enumeration date
- April 24, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 427-3910
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Billy Lin practices at Fontana Medical Center in Fontana, California
Billy Lin's primary practice is Fontana Medical Center, at 9961 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-3910.
- Fontana Medical Center9961 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-3910
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Billy Lin is affiliated with 3 sites of care and 4 medical groups
Billy Lin's primary practice is Fontana Medical Center in Fontana, California. Billy Lin is also affiliated with Cedars-Sinai Medical Center. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Billy Lin to 1 more hospital and 3 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Billy Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Billy Lin practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fontana Medical Center | Available with a free account |
| +2 more sites and 3 medical groups | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Billy Lin is one of 16,751 internists in California
Internal medicine is Billy Lin's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Billy Lin is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Billy 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
Billy Lin's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Billy Lin's median patient age at 41, with 62% women.
Billy 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
- Women62%
- Men38%
Source: Dmand AI Patient Panel Data
Billy Lin wrote 138 Medicare Part D claims in 2024
In 2024, Billy Lin wrote 138 Medicare Part D claims for 74 patients. 93% of them were for generic drugs.
Billy Lin's Part D claims by kind of drug, 2024
- Generic129 claims93%
- Brand-name and other9 claims7%
Drug classes CMS tracks in Billy Lin's Part D claims, 2024
- Antibiotics22%31 of 138 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Billy Lin takes part in Medicare
Billy 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Billy Lin received $1,009 in industry payments from 2024 to 2025
CMS Open Payments shows 31 general payments to Billy Lin from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 76% of the total. Abiomed paid the most, $407.
General payments to Billy Lin by program year, 2024 to 2025
General payments to Billy Lin by kind, 2024 to 2025
- Food and beverage$77176%
- Education$23924%
Companies that paid Billy Lin the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Billy 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 | 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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | 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) |
| 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 Billy 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 Billy Lin's NPI number?
Billy Lin's NPI number is 1073133419. It was assigned on April 24, 2020, and it is active in the NPI Registry.
What does Billy Lin specialize in?
Billy Lin is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Billy Lin practice?
Billy Lin practices at 9961 Sierra Ave, Fontana, CA 92335. Billy Lin's primary practice is Fontana Medical Center in Fontana, California. Dmand AI also links Billy Lin to 1 hospital and 3 medical groups.
What is Billy Lin's office phone number?
The practice phone on file for Billy Lin is (909) 427-3910.
What is Billy Lin's medical license number?
Billy Lin holds California license A181608.
Which hospitals is Billy Lin affiliated with?
Billy Lin is affiliated with Cedars-Sinai Medical Center. Dmand AI links Billy Lin to 1 more hospital.
What medical group is Billy Lin part of?
Billy Lin is linked to Southern California Permanente Medical Group. Dmand AI links Billy Lin to 3 more medical groups.
Does Billy Lin accept Medicare?
Yes. CMS lists Billy Lin as accepting Medicare assignment.
Has Billy Lin received payments from drug or device companies?
CMS Open Payments shows $1,009 in general payments to Billy Lin from 8 companies from 2024 to 2025. The largest total came from Abiomed.
How long has Billy Lin been practicing?
Billy Lin graduated from medical school in 2020, 6 years ago.
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