Dr. John Jeffrey Li, MD
- Medicare services, 2024
- 4,183
- Medicare patients, 2024
- 708
- Part D claims, 2024
- 768
- MIPS score, 2024
- 75
- Hospital affiliations
- 3
- Practice address
- 18300 Roscoe Blvd, Northridge, CA 91325
- Practice phone
- Call (818) 885-8500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Li'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 Jeffrey Li is an infectious disease specialist in Northridge, California
Dr. Li practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health.
Dr. Li's NPI, 1487678041, was assigned on July 27, 2006. Dr. Li holds California license A85389.
- NPI
- 1487678041NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315044674
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (818) 885-8500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 52
- Medical school graduation
- 2000
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Jeffrey Li practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California
Dr. Li's primary practice is Dignity Health - Northridge Hospital Medical Center, at 18300 Roscoe Blvd, Northridge, CA 91325 in Los Angeles County. The practice phone is (818) 885-8500.
- Dignity Health - Northridge Hospital Medical Center18300 Roscoe Blvd, Northridge, CA 91325 · Los Angeles CountyPhone(818) 885-8500
Source: Dmand AI Affiliation Data
Dr. John Jeffrey Li is affiliated with 4 sites of care
Dr. Li's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. Dr. Li is also affiliated with UCLA West Valley Medical Center. Dmand AI also links Dr. Li to 1 more hospital and 1 home health agency, each named with a free account. Dr. Li's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John Jeffrey Li's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Li practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dignity Health - Northridge Hospital Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Jeffrey Li is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Li's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Li is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Infectious disease specialists near Dr. Li
Counts of infectious disease specialists 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 Jeffrey Li billed Medicare for 4,183 services in 2024
CMS data shows 4,183 Medicare services from Dr. Li across 5 procedure codes in 2024, for 708 Medicare patients. Medicare paid $437,903 for them.
Dr. Li's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4,0922024: 4,1832%
Where Dr. Li's Medicare services took place, 2024
- In an office3087%
- In a facility3,87593%
Dr. Li compared with the California median for infectious disease specialists, 2024
- Dr. Li
- California median
- Medicare services
- 4,183vs 4299.8 times
- Medicare patients
- 708vs 1803.9 times
- Part D claims
- 517vs 1194.3 times
Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.
Dr. Li'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Li and other infectious disease specialists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Jeffrey Li treated 708 Medicare patients in 2024, average age 77
CMS counts 708 Medicare patients who saw Dr. Li in 2024. The largest group is 75 to 84, with 253 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 55% are also on Medicaid. Their average risk score is 3.62, 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. Li's median patient age at 67, with 51% women.
Dr. Li's Medicare patients by age, 2024
Dr. Li's Medicare patients by sex, 2024
- Women36151%
- Men34749%
Chronic conditions among Dr. Li's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis69%
- Ischemic heart disease66%
- Diabetes61%
- Heart failure60%
- Chronic kidney disease55%
- Mood disorders55%
Share of Medicare patients with each condition. A patient can have several.
Dr. Li's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Jeffrey Li wrote 768 Medicare Part D claims in 2024
In 2024, Dr. Li wrote 768 Medicare Part D claims for 106 patients. 78% of them were for generic drugs. CMS names the drug for 517 of them, across 30 drugs with 11 or more claims each, at $493,082 in total drug cost. In 2023, CMS named 595 claims across 33 drugs.
Dr. Li's Part D claims by kind of drug, 2024
- Generic600 claims78%
- Brand-name168 claims22%
Dr. Li'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. Li's Part D claims, 2024
- Antibiotics34%264 of 768 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: 5952024: 51713%
Drugs named by CMS: 30 in 2024, 33 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
Dr. John Jeffrey Li scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Li for performance year 2024, reported individually. Dr. Li accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. John Jeffrey Li received $8,643 in industry payments from 2016 to 2025
CMS Open Payments shows 331 general payments to Dr. Li from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Gilead Sciences, Inc. paid the most, $1,950.
General payments to Dr. Li by program year, 2016 to 2025
General payments to Dr. Li by kind, 2016 to 2025
- Food and beverage$8,34897%
- Education$2953%
Companies that paid Dr. Li the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John Jeffrey Li'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)Clinician Public Reporting: Overall MIPS Performance (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 Dr. John Jeffrey Li
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 Jeffrey Li's NPI number?
Dr. John Jeffrey Li's NPI number is 1487678041. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Jeffrey Li?
Dr. John Jeffrey Li is an infectious disease specialist in Northridge, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. John Jeffrey Li practice?
Dr. Li practices at 18300 Roscoe Blvd, Northridge, CA 91325. Dr. Li's primary practice is Dignity Health - Northridge Hospital Medical Center in Northridge, California, part of CommonSpirit Health. Dmand AI also links Dr. Li to 1 hospital and 1 home health agency.
What is Dr. John Jeffrey Li's office phone number?
The practice phone on file for Dr. Li is (818) 885-8500.
What is Dr. John Jeffrey Li's medical license number?
Dr. Li holds California license A85389.
Which hospitals is Dr. John Jeffrey Li affiliated with?
Dr. Li practices at Dignity Health - Northridge Hospital Medical Center in Northridge, California. Dr. Li is also affiliated with UCLA West Valley Medical Center. Dmand AI links Dr. Li to 1 more hospital.
Does Dr. John Jeffrey Li accept Medicare?
Yes. CMS data shows Dr. Li billed Medicare for 4,183 services in 2024, and Dr. Li accepts Medicare assignment.
What is Dr. John Jeffrey Li's MIPS score?
Dr. Li's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. John Jeffrey Li see?
CMS counts 708 Medicare patients who saw Dr. Li in 2024, with an average age of 77.
What services does Dr. John Jeffrey Li bill to Medicare?
In 2024, Dr. Li's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99223) and critical care (99291).
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What drugs does Dr. John Jeffrey Li prescribe most?
In 2024 Medicare Part D data, Dr. Li's most prescribed drugs by claims were Cephalexin, Biktarvy and Fluconazole.
Has Dr. John Jeffrey Li received payments from drug or device companies?
CMS Open Payments shows $8,643 in general payments to Dr. Li from 24 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. John Jeffrey Li been practicing?
Dr. Li graduated from medical school in 2000, 26 years ago.
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