Atherosclerosis
Acquired Immunodeficiency SyndromeCause of DeathCoronary Angiography
Dr. Mallory Witt, MD
NPI1275687998
- Part D claims, 2016
- 36
- Publications
- 136
- Hospital affiliations
- 1
- Industry payments
- $10,579
- Medical group
- 1
- Practice address
- 1000 W Carson St, Torrance, CA 90509
- Practice phone
- Call (310) 222-2345
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Mallory Witt is an infectious disease specialist in Torrance, California
Dr. Witt practices at Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
Dr. Witt's NPI, 1275687998, was assigned on January 22, 2007. Dr. Witt graduated from Stanford University School Of Medicine in 1985. Dr. Witt holds California license G59860.
NPI and contact details
- NPI
- 1275687998NPI Registry (opens in a new tab)
- NPI enumeration date
- January 22, 2007
- NPI status
- Active
- Practice phone
- (310) 222-2345
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Mallory Witt practices at Harbor-UCLA Medical Center in Torrance, California
Dr. Witt's primary practice is Harbor-UCLA Medical Center, at 1000 W Carson St, Torrance, CA 90509 in Los Angeles County. The practice phone is (310) 222-2345.
- Harbor-UCLA Medical Center1000 W Carson St, Torrance, CA 90509 · Los Angeles CountyPhone(310) 222-2345
Source: Dmand AI Affiliation Data
Dr. Mallory Witt is affiliated with 1 site of care and 1 medical group
Dr. Witt's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles. The medical group on file is Harbor-UCLA Medical Center. Dr. Witt'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. Mallory Witt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Witt practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Harbor-UCLA Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mallory Witt is one of 1,054 infectious disease specialists in California
Infectious disease is Dr. Witt's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dr. Witt is board certified in infectious disease by the American Board of Internal Medicine. Dr. Witt is licensed in California.
Specialties and state licenses
- Infectious disease, CaliforniaPrimary
Clinical focus
Dmand AI lists acute respiratory failure and sepsis among the conditions Dr. Witt treats.
Infectious disease specialists near Dr. Witt
Counts of infectious disease specialists with a Dmand AI profile, by place and practice. Each opens the list.
1,054infectious disease specialists in California24infectious disease specialists in Torrance10infectious disease specialists at Harbor-UCLA Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mallory Witt's patients have a median age of 61
Across all payers, Dmand AI patient panel data puts Dr. Witt's median patient age at 61, with 18% women.
Dr. Witt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women18%
- Men82%
Source: Dmand AI Patient Panel Data
Dr. Mallory Witt wrote 36 Medicare Part D claims in 2016
In 2016, Dr. Witt wrote 36 Medicare Part D claims. Every claim was for a generic drug. They cover 3 drugs, with $151 in total drug cost.
Part D claims, 201636
Drugs named by CMS3
Total drug cost$151
Dr. Witt's most prescribed drugs by claims, 2016
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Mallory Witt has 136 publications on record
Dmand AI links 136 papers to Dr. Witt, published from 2001 to 2025. 2019 was the busiest year, with 9. The most frequent topics are HIV Infections, Coronary Artery Disease and CD4 Lymphocyte Count. Dr. Witt has published most often in AIDS. Dr. Witt's most frequent co-authors are Frank Palella, MD, Matthew J. Budoff, MD and Todd T. Brown, MD.
Papers136
Years published2001 to 2025
Dr. Witt's papers by year, 2016 to 2025
Topics Dr. Witt writes about most
- HIV Infections
- Coronary Artery Disease
- CD4 Lymphocyte Count
- Tomography, X-Ray Computed
- Antiretroviral Therapy, Highly Active
- Coronary Angiography
- Viral Load
- Homosexuality, Male
Dr. Witt's most frequent co-authors
- Frank Palella, MD46 shared papers
- Matthew J. Budoff, MD38 shared papers
- Todd T. Brown, MD26 shared papers
Recent publications by Dr. Witt
Adipose TissueEpicardial Adipose TissueHIV Infections
EchocardiographyHIV InfectionsIntra-Abdominal Fat
See who Dr. Witt researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Witt works with, so you can find a warm path to the right infectious disease specialists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mallory Witt received $10,579 in industry payments from 2016 to 2025
CMS Open Payments shows 265 general payments to Dr. Witt from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 50% of the total. Gilead Sciences, Inc. paid the most, $6,952.
General payments to Dr. Witt by program year, 2016 to 2025
General payments to Dr. Witt by kind, 2016 to 2025
$10.6Kin total
- Food and beverage$5,26350%
- Consulting fees$5,13048%
- Education$1361%
- Travel and lodging$510%
Companies that paid Dr. Witt 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. Mallory Witt has 5 awards and honors on record
Dmand AI lists 5 awards for Dr. Witt, most recently Top Doctors:LA Area in 2013.
Awards and honors for Dr. Witt
- 2013
- Top Doctors:LA Area
- 2012
- Fellow (FIDSA)
- Top Doctors:Southern California
- 1997
- ACP Fellow
- Undated
- Super Doc
Source: Dmand AI Professional Profile Data
Dr. Mallory Witt graduated from Stanford University School Of Medicine
Dr. Witt graduated from Stanford University School Of Medicine in 1985. Dr. Witt is a member of ACP.
- Medical school
- Board certified in infectious disease
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Mallory Witt accepts plans from 1 insurance carrier
Dr. Witt is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- LA Care
Plan types Dr. Witt accepts, by number of carriers
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Mallory Witt'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Mallory Witt
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. Mallory Witt's NPI number?
Dr. Mallory Witt's NPI number is 1275687998. It was assigned on January 22, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mallory Witt?
Dr. Mallory Witt is an infectious disease specialist in Torrance, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).
Where does Dr. Mallory Witt practice?
Dr. Witt practices at 1000 W Carson St, Torrance, CA 90509. Dr. Witt's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
What is Dr. Mallory Witt's office phone number?
The practice phone on file for Dr. Witt is (310) 222-2345.
What is Dr. Mallory Witt's medical license number?
Dr. Witt holds California license G59860.
Which hospitals is Dr. Mallory Witt affiliated with?
Dr. Witt practices at Harbor-UCLA Medical Center in Torrance, California.
What medical group is Dr. Mallory Witt part of?
Dr. Witt is linked to Harbor-UCLA Medical Center.
Is Dr. Mallory Witt board certified?
Yes. Dr. Witt is board certified in infectious disease by the American Board of Internal Medicine.
Where did Dr. Mallory Witt go to medical school?
Dr. Witt graduated from Stanford University School Of Medicine in 1985.
What drugs does Dr. Mallory Witt prescribe most?
In 2016 Medicare Part D data, Dr. Witt's most prescribed drugs by claims were Atorvastatin Calcium, Benazepril HCl and Metformin HCl.
Show 5 more questionsShow fewer questions
Has Dr. Mallory Witt received payments from drug or device companies?
CMS Open Payments shows $10,579 in general payments to Dr. Witt from 18 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. Mallory Witt been practicing?
Dr. Witt graduated from medical school in 1985, 41 years ago.
Does Dr. Mallory Witt do research?
Dmand AI links 136 publications to Dr. Witt, published from 2001 to 2025.
Who does Dr. Mallory Witt publish with?
Dr. Witt's most frequent co-authors are Frank Palella, MD (46 shared papers), Matthew J. Budoff, MD (38 shared papers) and Todd T. Brown, MD (26 shared papers).
What insurance does Dr. Mallory Witt accept?
Dr. Witt is in network with 1 carrier, including LA Care. HMO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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