Dr. Cathleen Yi Li, DO

  • Whittier, CA
  • Family medicine physician
NPI1275995490PAC ID6800163239
Medicare services, 2024
335
Medicare patients, 2024
171
Part D claims, 2024
6,458
MIPS score, 2024
79
Hospital affiliations
1
Practice address
12522 E Lambert Rd, Whittier, CA 90606
Practice phone
Call (562) 789-5420
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

PIH Health Physicians

Whittier, California

See all 5 affiliations

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Dr. Cathleen Yi Li is a family medicine physician in Whittier, California

Dr. Li practices at PIH Health Physicians in Whittier, California.

Dr. Li's NPI, 1275995490, was assigned on March 26, 2016. Dr. Li holds California license 20A14494.

NPI and contact details
Medicare PAC ID
6800163239
NPI enumeration date
March 26, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(562) 789-5420
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
38
Medical school graduation
2014

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Cathleen Yi Li practices at PIH Health Physicians in Whittier, California

Dr. Li's primary practice is PIH Health Physicians, at 12522 E Lambert Rd, Whittier, CA 90606 in Los Angeles County. The practice phone is (562) 789-5420.

  • PIH Health Physicians
    12522 E Lambert Rd, Whittier, CA 90606 · Los Angeles CountyPhone(562) 789-5420

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Cathleen Yi Li is affiliated with 4 sites of care and 1 medical group

Dr. Li's primary practice is PIH Health Physicians in Whittier, California. Dr. Li is also affiliated with PIH Health Whittier Hospital. The medical group on file is PIH Health Physicians. Dmand AI also links Dr. Li to 1 more group practice or clinic and 1 home health agency, each named with a free account.

See all 5 affiliations for Dr. Li

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Cathleen Yi Li's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Li practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
PIH Health PhysiciansAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Cathleen Yi Li is one of 15,680 family medicine physicians in California

Family medicine is Dr. Li's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Li is licensed in California.

Specialties and state licenses

  • Family medicine, CaliforniaPrimaryLicense 20A14494 · taxonomy 207Q00000X

Family medicine physicians near Dr. Li

Counts of family medicine physicians 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. Cathleen Yi Li billed Medicare for 335 services in 2024

CMS data shows 335 Medicare services from Dr. Li across 7 procedure codes in 2024, for 171 Medicare patients. Medicare paid $27,245 for them. Every service was in an office.

Medicare services, 2024335
Medicare patients171
Paid by Medicare$27,245
Procedure codes7

Dr. Li's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1462024: 26783%
Other services
2023: 542024: 4124%
Tests and treatments
2023: 402024: 2733%
Lab and pathology
2023: 162024: 0100%

Dr. Li compared with the California median for family medicine physicians, 2024

  • Dr. Li
  • California median
Medicare services
335vs 24636% above
Medicare patients
171vs 11845% above
Part D claims
5,746vs 8336.9 times

Medians across 15,349 family medicine physicians 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.

See all procedures by Dr. Li

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Cathleen Yi Li treated 171 Medicare patients in 2024, average age 73

CMS counts 171 Medicare patients who saw Dr. Li in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have high cholesterol, and 64% have high blood pressure. 25% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Li's median patient age at 64, with 70% women.

Medicare patients, 2024171
Average age73
Average risk score1.19
Also on Medicaid25%

Dr. Li's Medicare patients by age, 2024

Dr. Li's Medicare patients by sex, 2024

  • Women11869%
  • Men5331%

Chronic conditions among Dr. Li's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure64%
  3. Diabetes35%
  4. Arthritis34%
  5. Chronic kidney disease21%
  6. Anxiety19%
  7. Osteoporosis18%
  8. Mood disorders16%

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 64

Patient panel by sex, all payers

  • Women70%
  • Men29%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Cathleen Yi Li wrote 6,458 Medicare Part D claims in 2024

In 2024, Dr. Li wrote 6,458 Medicare Part D claims for 753 patients. 89% of them were for generic drugs. CMS names the drug for 5,746 of them, across 111 drugs with 11 or more claims each, at $383,012 in total drug cost. In 2023, CMS named 4,097 claims across 79 drugs.

Part D claims, 20246,458
Drugs named by CMS111
Total drug cost$383,012
Part D patients753

Dr. Li's Part D claims by kind of drug, 2024

  • Generic5,777 claims89%
  • Brand-name626 claims10%
  • Other55 claims1%

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

  • Opioids1%92 of 6,458 claims
  • Antibiotics2%137 of 6,458 claims
  • Antipsychotics, patients 65 and over0%14 of 6,458 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: 4,0972024: 5,74640%

Drugs named by CMS: 111 in 2024, 79 in 2023.

See all prescribing by Dr. Li

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. Cathleen Yi Li scored 79 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Li for performance year 2024, reported as part of a group. Dr. Li accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Li as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Li's MIPS scores, performance year 2024

  • 79of 100Final score
  • 58.7of 100Quality
  • 40of 100Improvement Activities
  • 75of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Cathleen Yi Li received $215 in industry payments from 2016 to 2025

CMS Open Payments shows 5 general payments to Dr. Li from 4 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $120.

General payments to Dr. Li by program year, 2016 to 2025

Companies that paid Dr. Li the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Li

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Cathleen Yi Li's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Cathleen Yi 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. Cathleen Yi Li's NPI number?

Dr. Cathleen Yi Li's NPI number is 1275995490. It was assigned on March 26, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Cathleen Yi Li?

Dr. Cathleen Yi Li is a family medicine physician in Whittier, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).

Where does Dr. Cathleen Yi Li practice?

Dr. Li practices at 12522 E Lambert Rd, Whittier, CA 90606. Dr. Li's primary practice is PIH Health Physicians in Whittier, California. Dmand AI also links Dr. Li to 1 group practice or clinic and 1 home health agency.

What is Dr. Cathleen Yi Li's office phone number?

The practice phone on file for Dr. Li is (562) 789-5420.

What is Dr. Cathleen Yi Li's medical license number?

Dr. Li holds California license 20A14494.

Which hospitals is Dr. Cathleen Yi Li affiliated with?

Dr. Li is affiliated with PIH Health Whittier Hospital.

What medical group is Dr. Cathleen Yi Li part of?

Dr. Li is linked to PIH Health Physicians.

Does Dr. Cathleen Yi Li accept Medicare?

Yes. CMS data shows Dr. Li billed Medicare for 335 services in 2024, and Dr. Li accepts Medicare assignment.

Does Dr. Cathleen Yi Li offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Li as offering telehealth services.

What is Dr. Cathleen Yi Li's MIPS score?

Dr. Li's MIPS final score for performance year 2024 is 79 out of 100, reported as part of a group.

Show 5 more questionsShow fewer questions

How many Medicare patients does Dr. Cathleen Yi Li see?

CMS counts 171 Medicare patients who saw Dr. Li in 2024, with an average age of 73.

What services does Dr. Cathleen Yi Li bill to Medicare?

In 2024, Dr. Li's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0008).

What drugs does Dr. Cathleen Yi Li prescribe most?

In 2024 Medicare Part D data, Dr. Li's most prescribed drugs by claims were Atorvastatin Calcium, Losartan Potassium and Amlodipine Besylate.

Has Dr. Cathleen Yi Li received payments from drug or device companies?

CMS Open Payments shows $215 in general payments to Dr. Li from 4 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.

How long has Dr. Cathleen Yi Li been practicing?

Dr. Li graduated from medical school in 2014, 12 years ago.

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