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Dr. David Guzman, MD
NPI1275521494
- Medicare services, 2022
- 15
- Part D claims, 2024
- 68
- Publications
- 53
- Clinical trials
- 1
- Hospital affiliations
- 1
- Practice address
- 6041 Cadillac Ave, Los Angeles, CA 90034
- Practice phone
- Call (213) 857-2201
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Guzman'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. David Guzman is an internist in Los Angeles, California
Dr. Guzman practices at West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente.
Dr. Guzman's NPI, 1275521494, was assigned on October 11, 2005. Dr. Guzman graduated from University of Chicago, Pritzker School of Medicine in 1987. Dr. Guzman holds California license C151747.
NPI and contact details
- NPI
- 1275521494NPI Registry (opens in a new tab)
- NPI enumeration date
- October 11, 2005
- NPI status
- Active
- Practice phone
- (213) 857-2201
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. David Guzman practices at West Los Angeles Medical Center in Los Angeles, California
Dr. Guzman's primary practice is West Los Angeles Medical Center, at 6041 Cadillac Ave, Los Angeles, CA 90034 in Los Angeles County. The practice phone is (213) 857-2201.
- West Los Angeles Medical Center6041 Cadillac Ave, Los Angeles, CA 90034 · Los Angeles CountyPhone(213) 857-2201
Source: Dmand AI Affiliation Data
Dr. David Guzman is affiliated with 2 sites of care and 2 medical groups
Dr. Guzman's primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. The medical group on file is Southern California Permanente Medical Group. Dmand AI also links Dr. Guzman to 1 more dialysis center and 1 medical group, each named with a free account.
Southern California Permanente Medical Group1 dialysis centerName with a free account1 medical groupName with a free account
See all 4 affiliations for Dr. GuzmanSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. David Guzman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guzman practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| West Los Angeles Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David Guzman is one of 16,751 internists in California
Internal medicine is Dr. Guzman's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Guzman is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Guzman
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
16,751internists in California1,242internists in Los Angeles103internists at West Los Angeles Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. David Guzman billed Medicare for 15 services in 2022
CMS data shows 15 Medicare services from Dr. Guzman across 1 procedure code in 2022, all of them office visits. Medicare paid $1,209 for them. Every service was in an office.
Medicare services, 202215
Paid by Medicare$1,209
Procedure codes1
Dr. Guzman's Medicare services by type, 2019 to 2022
- 2019
- 2022
- Office and hospital visits
- 2019: 692022: 1578%
- Lab and pathology
- 2019: 432022: 0100%
- Tests and treatments
- 2019: 132022: 0100%
- Surgery
- 2019: 182022: 0100%
Dr. Guzman compared with the California median for internists, 2022
- Dr. Guzman
- California median
- Medicare services
- 15vs 36196% below
- Part D claims
- 529vs 42126% above
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. Guzman's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Guzman?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Guzman and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David Guzman's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Dr. Guzman's median patient age at 60, with 59% women.
Dr. Guzman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women59%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. David Guzman wrote 68 Medicare Part D claims in 2024
In 2024, Dr. Guzman wrote 68 Medicare Part D claims for 57 patients. 81% of them were for generic drugs. They cover 22 drugs, with $6,004 in total drug cost. In 2021, CMS named 91 claims across 5 drugs.
Part D claims, 202468
Drugs named by CMS22
Total drug cost$6,004
Part D patients57
Dr. Guzman's Part D claims by kind of drug, 2024
- Generic55 claims81%
- Brand-name and other13 claims19%
Dr. Guzman's most prescribed drugs by claims, 2022
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. Guzman's Part D claims, 2024
- Antibiotics46%31 of 68 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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 912022: 529481%
Drugs named by CMS: 22 in 2022, 5 in 2021.
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
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Dr. David Guzman has 53 publications on record
Dmand AI links 53 papers to Dr. Guzman, published from 2010 to 2025. 2016 was the busiest year, with 9. The most frequent topics are Ill-Housed Persons, California and Substance-Related Disorders. Dr. Guzman has published most often in J Gen Intern Med. Dr. Guzman's most frequent co-authors are Kirsten Beatrice Bibbins-Domingo, MD, Michelle E. Schneidermann, MD and Brian Chan, MD.
Papers53
Years published2010 to 2025
Dr. Guzman's papers by year, 2015 to 2025
Topics Dr. Guzman writes about most
- Ill-Housed Persons
- California
- Substance-Related Disorders
- San Francisco
- HIV Infections
- Housing
- Hypertension
- Analgesics, Opioid
Dr. Guzman's most frequent co-authors
- Kirsten Beatrice Bibbins-Domingo, MD6 shared papers
- Michelle E. Schneidermann, MD3 shared papers
- Brian Chan, MD2 shared papers
Recent publications by Dr. Guzman
CaliforniaDepressionIll-Housed Persons
J Gen Intern Med
Activities of Daily LivingIll-Housed PersonsSubstance-Related Disorders
J Gen Intern Med
HousingIll-Housed Persons
See who Dr. Guzman researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Guzman works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. David Guzman has worked on 1 clinical trial
Dmand AI links Dr. Guzman to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Non-alcoholic Fatty Liver Disease and Fatty Liver. Open Payments lists research payments to Dr. Guzman that name 1 trial.
Conditions in Dr. Guzman's trials
- Non-alcoholic Fatty Liver Disease
- Fatty Liver
Investigators on the most trials with Dr. Guzman
- Emmanuel Cruz Gorospe, MD1 shared trial
- Paola Mansilla-Letelier, MD1 shared trial
- Anya I. Mezina, MD1 shared trial
Recent clinical trials with Dr. Guzman
$1,554 in research paymentsNon-alcoholic Fatty Liver DiseaseFatty LiverALN-HSD
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. David Guzman received $14,367 in industry payments from 2016 to 2025
CMS Open Payments shows 94 general payments to Dr. Guzman from 11 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 74% of the total. Amgen Inc. paid the most, $3,129. It also lists 25 research payments totaling $4,501 from 2023 to 2024, naming 1 clinical trial.
General payments to Dr. Guzman by program year, 2016 to 2025
General payments to Dr. Guzman by kind, 2016 to 2025
$14.4Kin total
- Travel and lodging$10,68974%
- Food and beverage$3,64625%
- Education$320%
Companies that paid Dr. Guzman the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David Guzman graduated from University of Chicago, Pritzker School of Medicine
Dr. Guzman graduated from University of Chicago, Pritzker School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David Guzman'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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 |
| 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. David Guzman
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. David Guzman's NPI number?
Dr. David Guzman's NPI number is 1275521494. It was assigned on October 11, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. David Guzman?
Dr. David Guzman is an internist in Los Angeles, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. David Guzman practice?
Dr. Guzman practices at 6041 Cadillac Ave, Los Angeles, CA 90034. Dr. Guzman's primary practice is West Los Angeles Medical Center in Los Angeles, California, part of Kaiser Permanente. Dmand AI also links Dr. Guzman to 1 dialysis center and 1 medical group.
What is Dr. David Guzman's office phone number?
The practice phone on file for Dr. Guzman is (213) 857-2201.
What is Dr. David Guzman's medical license number?
Dr. Guzman holds California license C151747.
Which hospitals is Dr. David Guzman affiliated with?
Dr. Guzman practices at West Los Angeles Medical Center in Los Angeles, California.
What medical group is Dr. David Guzman part of?
Dr. Guzman is linked to Southern California Permanente Medical Group. Dmand AI links Dr. Guzman to 1 more medical group.
Does Dr. David Guzman accept Medicare?
Yes. CMS data shows Dr. Guzman billed Medicare for 15 services in 2022.
What services does Dr. David Guzman bill to Medicare?
In 2022, Dr. Guzman's most billed Medicare services were office visit, established patient (99213).
Where did Dr. David Guzman go to medical school?
Dr. Guzman graduated from University of Chicago, Pritzker School of Medicine in 1987.
Show 5 more questionsShow fewer questions
What drugs does Dr. David Guzman prescribe most?
In 2022 Medicare Part D data, Dr. Guzman's most prescribed drugs by claims were Naproxen, Nitrofurantoin Mono-Macro and Cephalexin.
Has Dr. David Guzman received payments from drug or device companies?
CMS Open Payments shows $14,367 in general payments to Dr. Guzman from 11 companies from 2016 to 2025. The largest total came from Amgen Inc.
How long has Dr. David Guzman been practicing?
Dr. Guzman graduated from medical school in 1987, 39 years ago.
Does Dr. David Guzman do research?
Dmand AI links 53 publications to Dr. Guzman, published from 2010 to 2025. Dr. Guzman has worked on 1 clinical trial.
Who does Dr. David Guzman publish with?
Dr. Guzman's most frequent co-authors are Kirsten Beatrice Bibbins-Domingo, MD (6 shared papers), Michelle E. Schneidermann, MD (3 shared papers) and Brian Chan, MD (2 shared papers).
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