Karen C. Lin, OD
- Medicare patients, 2024
- 205
- Hospital affiliations
- 1
- Medical groups
- 4
- State license
- 1
- Year NPI issued
- 2007
- 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 Karen 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.
Karen C. Lin is an optometrist in Fontana, California
Karen Lin practices at Fontana Medical Center in Fontana, California.
Karen Lin's NPI, 1831241801, was assigned on January 18, 2007. Karen Lin graduated from Southern California College of Optometry in 2003. Karen Lin holds California license OPT12328TPA.
- NPI
- 1831241801NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9739227422
- NPI enumeration date
- January 18, 2007
- 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
- Female
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Karen C. Lin practices at Fontana Medical Center in Fontana, California
Karen 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
Karen C. Lin is affiliated with 6 sites of care and 4 medical groups
Karen Lin's primary practice is Fontana Medical Center in Fontana, California. Karen Lin is also affiliated with UCI Health - Orange. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Karen Lin to 4 more group practices and clinics and 3 medical groups, each 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 Karen C. Lin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Karen Lin practices, 5 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 |
| +5 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Karen C. Lin is one of 7,206 optometrists in California
Optometrist is Karen Lin's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Karen Lin is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Karen Lin
Counts of optometrists 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
Karen C. Lin treated 205 Medicare patients in 2024, average age 80
CMS counts 205 Medicare patients who saw Karen Lin in 2024. The largest group is 75 to 84, with 84 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.66, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Karen Lin's median patient age at 69, with 59% women.
Karen Lin's Medicare patients by age, 2024
Karen Lin's Medicare patients by sex, 2024
- Women14068%
- Men6532%
Chronic conditions among Karen Lin's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Mood disorders34%
- Diabetes33%
- Osteoporosis32%
- Depression30%
- Ischemic heart disease29%
Share of Medicare patients with each condition. A patient can have several.
Karen 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 69
Patient panel by sex, all payers
- Women59%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Karen C. Lin takes part in Medicare
Karen 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)
Karen C. Lin graduated from Southern California College of Optometry
Karen Lin graduated from Southern California College of Optometry in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Karen C. 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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - 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) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Karen C. 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 Karen C. Lin's NPI number?
Karen C. Lin's NPI number is 1831241801. It was assigned on January 18, 2007, and it is active in the NPI Registry.
What does Karen C. Lin specialize in?
Karen C. Lin is an optometrist in Fontana, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Karen C. Lin practice?
Karen Lin practices at 9961 Sierra Ave, Fontana, CA 92335. Karen Lin's primary practice is Fontana Medical Center in Fontana, California. Dmand AI also links Karen Lin to 4 group practices and clinics and 3 medical groups.
What is Karen C. Lin's office phone number?
The practice phone on file for Karen Lin is (909) 427-3910.
What is Karen C. Lin's medical license number?
Karen Lin holds California license OPT12328TPA.
Which hospitals is Karen C. Lin affiliated with?
Karen Lin is affiliated with UCI Health - Orange.
What medical group is Karen C. Lin part of?
Karen Lin is linked to Southern California Permanente Medical Group. Dmand AI links Karen Lin to 3 more medical groups.
Does Karen C. Lin accept Medicare?
Yes. CMS lists Karen Lin as accepting Medicare assignment.
How many Medicare patients does Karen C. Lin see?
CMS counts 205 Medicare patients who saw Karen Lin in 2024, with an average age of 80.
Where did Karen C. Lin go to medical school?
Karen Lin graduated from Southern California College of Optometry in 2003.
How long has Karen C. Lin been practicing?
Karen Lin graduated from medical school in 2003, 23 years ago.
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