Dr. Ricardo Enrique McKenzie, MD

  • Lynwood, CA
  • Internist
NPI1104823814PAC ID6901098177
Medicare services, 2024
121
Medicare patients, 2024
30
Part D claims, 2024
133
Hospital affiliations
1
Industry payments
$1,298
Practice address
3630 East Imperial Highway, Lynwood, CA 90262
Practice phone
Call (310) 900-8900
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Francis Medical Center

Hospital · Lynwood, California

See all 2 affiliations

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Dr. Ricardo Enrique McKenzie is an internist in Lynwood, California

Dr. McKenzie practices at St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services.

Dr. McKenzie's NPI, 1104823814, was assigned on July 7, 2005. Dr. McKenzie graduated from Universidad Anahuac School of Medicine in 1982. Dr. McKenzie holds California license A43601.

NPI and contact details
Medicare PAC ID
6901098177
NPI enumeration date
July 7, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(310) 900-8900
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
70
Medical school graduation
1982

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

Dr. Ricardo Enrique McKenzie practices at St. Francis Medical Center in Lynwood, California

Dr. McKenzie's primary practice is St. Francis Medical Center, at 3630 East Imperial Highway, Lynwood, CA 90262 in Los Angeles County. The practice phone is (310) 900-8900.

Source: Dmand AI Affiliation Data

Dr. Ricardo Enrique McKenzie is affiliated with 2 sites of care

Dr. McKenzie's primary practice is St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services. Dmand AI also links Dr. McKenzie to 1 physician office, named with a free account.

See all 2 affiliations for Dr. McKenzie

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Ricardo Enrique McKenzie's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McKenzie practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Francis Medical CenterAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Ricardo Enrique McKenzie is one of 16,751 internists in California

Internal medicine is Dr. McKenzie's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. McKenzie's licenses on file in 3 states: California, Nevada and New York.

Specialties and state licenses

  • Internal medicine, CaliforniaPrimaryLicense A43601 · 1987 to 2026 · taxonomy 207R00000X
  • Nevada license1996 to 1999
  • New York license1984 to 1987

Clinical focus

Dmand AI lists acute respiratory failure, atherosclerosis, circulatory problems in extremities, congestive heart failure, electrolyte disorders, gastrointestinal bleeding, headaches and lung disease: COPD, asthma or bronchitis among the conditions Dr. McKenzie treats.

Internists near Dr. McKenzie

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. Ricardo Enrique McKenzie billed Medicare for 121 services in 2024

CMS data shows 121 Medicare services from Dr. McKenzie across 3 procedure codes in 2024, for 30 Medicare patients. Medicare paid $9,635 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024121
Medicare patients30
Paid by Medicare$9,635
Procedure codes3

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

  • 2023
  • 2024
Office and hospital visits
2023: 2052024: 12141%

Dr. McKenzie compared with the California median for internists, 2024

  • Dr. McKenzie
  • California median
Medicare services
121vs 36166% below
Medicare patients
30vs 15180% below
Part D claims
24vs 42194% below

Medians across 15,815 internists in California with Dmand AI profiles that report each measure.

Dr. McKenzie'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. McKenzie

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

Dr. Ricardo Enrique McKenzie treated 30 Medicare patients in 2024, average age 70

CMS counts 30 Medicare patients who saw Dr. McKenzie in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have chronic kidney disease, and 75% have diabetes. Their average risk score is 6.11, 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. McKenzie's median patient age at 57, with 50% women.

Medicare patients, 202430
Average age70
Average risk score6.11

Dr. McKenzie's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. McKenzie's Medicare patients by sex, 2024

  • Women1757%
  • Men1343%

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

  1. Chronic kidney disease75%
  2. Diabetes75%
  3. Heart failure75%
  4. High blood pressure75%
  5. High cholesterol75%
  6. Ischemic heart disease75%
  7. Arthritis70%
  8. COPD53%

Share of Medicare patients with each condition. A patient can have several.

Dr. McKenzie's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 57

Patient panel by sex, all payers

  • Women50%
  • Men50%

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

Dr. Ricardo Enrique McKenzie wrote 133 Medicare Part D claims in 2024

In 2024, Dr. McKenzie wrote 133 Medicare Part D claims for 63 patients. 77% of them were for generic drugs. CMS names the drug for 24 of them, across 2 drugs with 11 or more claims each, at $86 in total drug cost. In 2023, CMS named 101 claims across 7 drugs.

Part D claims, 2024133
Drugs named by CMS2
Total drug cost$86
Part D patients63

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

  • Generic102 claims77%
  • Brand-name and other31 claims23%

Dr. McKenzie'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. McKenzie's Part D claims, 2024

  • Antibiotics14%19 of 133 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: 1012024: 2476%

Drugs named by CMS: 2 in 2024, 7 in 2023.

See all prescribing by Dr. McKenzie

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. Ricardo Enrique McKenzie takes part in Medicare

Dr. McKenzie 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. Ricardo Enrique McKenzie received $1,298 in industry payments from 2016 to 2020

CMS Open Payments shows 73 general payments to Dr. McKenzie from 10 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 97% of the total. Sanofi and Genzyme US Companies paid the most, $423.

General payments to Dr. McKenzie by program year, 2016 to 2020

General payments to Dr. McKenzie by kind, 2016 to 2020

$1.3Kin total
  • Food and beverage$1,25997%
  • Education$393%

Companies that paid Dr. McKenzie the most, 2016 to 2020

Share is of all general payments to this clinician.

See all payments to Dr. McKenzie

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

Dr. Ricardo Enrique McKenzie graduated from Universidad Anahuac School of Medicine

Dr. McKenzie graduated from Universidad Anahuac School of Medicine in 1982.

  1. Medical schoolUniversidad Anahuac School of Medicine

Source: Dmand AI Professional Profile Data

Dr. Ricardo Enrique McKenzie accepts plans from 7 insurance carriers

Dr. McKenzie is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • Blue Cross Blue Shield of Massachusetts
  • Elevance
  • HCSC
  • Molina
  • Regence Health Plans
  • Humana

Plan types Dr. McKenzie accepts, by number of carriers

  1. Medicare5
  2. HMO4
  3. PPO4
  4. POS2

Source: Dmand AI Insurance Network Data

Sources for Dr. Ricardo Enrique McKenzie'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
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. Ricardo Enrique McKenzie

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. Ricardo Enrique McKenzie's NPI number?

Dr. Ricardo Enrique McKenzie's NPI number is 1104823814. It was assigned on July 7, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Ricardo Enrique McKenzie?

Dr. Ricardo Enrique McKenzie is an internist in Lynwood, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Ricardo Enrique McKenzie practice?

Dr. McKenzie practices at 3630 East Imperial Highway, Lynwood, CA 90262. Dr. McKenzie's primary practice is St. Francis Medical Center in Lynwood, California, part of Prime Healthcare Services. Dmand AI also links Dr. McKenzie to 1 physician office.

What is Dr. Ricardo Enrique McKenzie's office phone number?

The practice phone on file for Dr. McKenzie is (310) 900-8900.

What is Dr. Ricardo Enrique McKenzie's medical license number?

Dr. McKenzie holds California license A43601, one of the licenses on file in 3 states.

Which states has Dr. Ricardo Enrique McKenzie been licensed in?

Dmand AI has state licenses on file for Dr. McKenzie in California (1987 to 2026), Nevada (1996 to 1999) and New York (1984 to 1987).

Which hospitals is Dr. Ricardo Enrique McKenzie affiliated with?

Dr. McKenzie practices at St. Francis Medical Center in Lynwood, California.

Does Dr. Ricardo Enrique McKenzie accept Medicare?

Yes. CMS data shows Dr. McKenzie billed Medicare for 121 services in 2024, and Dr. McKenzie accepts Medicare assignment.

How many Medicare patients does Dr. Ricardo Enrique McKenzie see?

CMS counts 30 Medicare patients who saw Dr. McKenzie in 2024, with an average age of 70.

What services does Dr. Ricardo Enrique McKenzie bill to Medicare?

In 2024, Dr. McKenzie's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99238) and hospital inpatient care (99223).

Show 5 more questionsShow fewer questions

Where did Dr. Ricardo Enrique McKenzie go to medical school?

Dr. McKenzie graduated from Universidad Anahuac School of Medicine in 1982.

What drugs does Dr. Ricardo Enrique McKenzie prescribe most?

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

Has Dr. Ricardo Enrique McKenzie received payments from drug or device companies?

CMS Open Payments shows $1,298 in general payments to Dr. McKenzie from 10 companies from 2016 to 2020. The largest total came from Sanofi and Genzyme US Companies.

How long has Dr. Ricardo Enrique McKenzie been practicing?

Dr. McKenzie graduated from medical school in 1982, 44 years ago.

What insurance does Dr. Ricardo Enrique McKenzie accept?

Dr. McKenzie is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.

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