Dr. Fred Lai, MD
- Medicare services, 2023
- 50
- Part D claims, 2024
- 384
- Hospital affiliations
- 1
- Industry payments
- $12
- Medical group
- 1
- Practice address
- 9965 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
Kaiser Permanente - Fontana Medical Center
Fontana, California
Find Dr. Lai'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. Fred Lai is an internist in Fontana, California
Dr. Lai practices at Kaiser Permanente - Fontana Medical Center in Fontana, California.
Dr. Lai's NPI, 1649476128, was assigned on June 22, 2007. Dr. Lai graduated from UC Davis School of Medicine in 2007. Dr. Lai holds California license A105247.
- NPI
- 1649476128NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416096433
- NPI enumeration date
- June 22, 2007
- 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
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fred Lai practices at Kaiser Permanente - Fontana Medical Center in Fontana, California
Dr. Lai's primary practice is Kaiser Permanente - Fontana Medical Center, at 9965 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 427-5000.
- Kaiser Permanente - Fontana Medical Center9965 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 427-5000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Fred Lai is affiliated with 2 sites of care and 1 medical group
Dr. Lai's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California. Dr. Lai is also affiliated with Fontana Medical Center. The medical group on file is Southern California Permanente Medical Group.
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 Dr. Fred Lai's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lai practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente - Fontana Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fred Lai is one of 16,751 internists in California
Internal medicine is Dr. Lai's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lai is board certified in internal medicine by the American Board of Internal Medicine. Dr. Lai is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists chest pain, congestive heart failure, gastrointestinal bleeding and mini-stroke (TIA) among the conditions Dr. Lai treats.
Internists near Dr. Lai
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. Fred Lai billed Medicare for 50 services in 2023
CMS data shows 50 Medicare services from Dr. Lai across 1 procedure code in 2023. Medicare paid $3,335 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Lai's Medicare services by type, 2016 to 2023
- 2016
- 2023
- Office and hospital visits
- 2016: 252023: 50100%
Dr. Lai compared with the California median for internists, 2023
- Dr. Lai
- California median
- Medicare services
- 50vs 36186% below
- Part D claims
- 175vs 42158% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Lai's most billed Medicare procedure codes, 2023
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Lai and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fred Lai's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Dr. Lai's median patient age at 72, with 53% women.
Dr. Lai's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Fred Lai wrote 384 Medicare Part D claims in 2024
In 2024, Dr. Lai wrote 384 Medicare Part D claims for 148 patients. 88% of them were for generic drugs. CMS names the drug for 175 of them, across 12 drugs with 11 or more claims each, at $10,859 in total drug cost. In 2023, CMS named 305 claims across 19 drugs.
Dr. Lai's Part D claims by kind of drug, 2024
- Generic339 claims88%
- Brand-name and other45 claims12%
Dr. Lai'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. Lai's Part D claims, 2024
- Opioids3%11 of 384 claims
- Antibiotics16%62 of 384 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: 3052024: 17543%
Drugs named by CMS: 12 in 2024, 19 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. Fred Lai takes part in Medicare
Dr. Lai 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. Fred Lai received $12 in industry payments in 2017
CMS Open Payments shows 1 general payment to Dr. Lai from 1 drug or device company in 2017. Food and beverage make up the largest share, 100% of the total. Relypsa, Inc. paid the most, $12.
Companies that paid Dr. Lai the most, 2017 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Fred Lai graduated from UC Davis School of Medicine
Dr. Lai graduated from UC Davis School of Medicine in 2007.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Fred Lai accepts plans from 2 insurance carriers
Dr. Lai 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. Lai accepts, by number of carriers
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Fred Lai'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 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 Data |
| 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) |
| 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. Fred Lai
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. Fred Lai's NPI number?
Dr. Fred Lai's NPI number is 1649476128. It was assigned on June 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Fred Lai?
Dr. Fred Lai is an internist in Fontana, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Fred Lai practice?
Dr. Lai practices at 9965 Sierra Ave, Fontana, CA 92335. Dr. Lai's primary practice is Kaiser Permanente - Fontana Medical Center in Fontana, California.
What is Dr. Fred Lai's office phone number?
The practice phone on file for Dr. Lai is (909) 427-5000.
What is Dr. Fred Lai's medical license number?
Dr. Lai holds California license A105247.
Which hospitals is Dr. Fred Lai affiliated with?
Dr. Lai is affiliated with Fontana Medical Center.
What medical group is Dr. Fred Lai part of?
Dr. Lai is linked to Southern California Permanente Medical Group.
Does Dr. Fred Lai accept Medicare?
Yes. CMS data shows Dr. Lai billed Medicare for 50 services in 2023, and Dr. Lai accepts Medicare assignment.
Is Dr. Fred Lai board certified?
Yes. Dr. Lai is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Fred Lai bill to Medicare?
In 2023, Dr. Lai's most billed Medicare services were hospital inpatient care (99232).
Show 5 more questionsShow fewer questions
Where did Dr. Fred Lai go to medical school?
Dr. Lai graduated from UC Davis School of Medicine in 2007.
What drugs does Dr. Fred Lai prescribe most?
In 2024 Medicare Part D data, Dr. Lai's most prescribed drugs by claims were Ciprofloxacin HCl, Potassium Chloride and Losartan Potassium.
Has Dr. Fred Lai received payments from drug or device companies?
CMS Open Payments shows $12 in general payments to Dr. Lai from 1 company from 2017 to 2017. The largest total came from Relypsa, Inc.
How long has Dr. Fred Lai been practicing?
Dr. Lai graduated from medical school in 2007, 19 years ago.
What insurance does Dr. Fred Lai accept?
Dr. Lai 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.
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