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Dr. Daniel B. Castro, MD
NPI1174684567
- Part D claims, 2024
- 796
- Publications
- 2
- Hospital affiliations
- 1
- Industry payments
- $462
- 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
Find Dr. Castro's professional email, personal email and mobile number
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Dr. Daniel B. Castro is a family medicine physician in Torrance, California
Dr. Castro practices at Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
Dr. Castro's NPI, 1174684567, was assigned on December 12, 2006. Dr. Castro graduated from University Of Minnesota Medical School in 1982. Dr. Castro holds California license G51143.
NPI and contact details
- NPI
- 1174684567NPI Registry (opens in a new tab)
- NPI enumeration date
- December 12, 2006
- NPI status
- Active
- Practice phone
- (310) 222-2345
- 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; and Dmand AI Affiliation Data
Dr. Daniel B. Castro practices at Harbor-UCLA Medical Center in Torrance, California
Dr. Castro'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. Daniel B. Castro is affiliated with 1 site of care and 1 medical group
Dr. Castro'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.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Daniel B. Castro's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Castro 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. Daniel B. Castro is one of 15,680 family medicine physicians in California
Family medicine is Dr. Castro's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Castro is board certified in family medicine by the American Board of Family Medicine. Dr. Castro is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Family medicine physicians near Dr. Castro
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
15,680family medicine physicians in California121family medicine physicians in Torrance38family medicine physicians at Harbor-UCLA Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Daniel B. Castro's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Castro's median patient age at 63, with 51% women.
Dr. Castro's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women51%
- Men49%
Source: Dmand AI Patient Panel Data
Dr. Daniel B. Castro wrote 796 Medicare Part D claims in 2024
In 2024, Dr. Castro wrote 796 Medicare Part D claims for 67 patients. 82% of them were for generic drugs. CMS names the drug for 479 of them, across 25 drugs with 11 or more claims each, at $11,479 in total drug cost. In 2023, CMS named 328 claims across 20 drugs.
Part D claims, 2024796
Drugs named by CMS25
Total drug cost$11,479
Part D patients67
Dr. Castro's Part D claims by kind of drug, 2024
- Generic650 claims82%
- Brand-name129 claims16%
- Other17 claims2%
Dr. Castro'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. Castro's Part D claims, 2024
- Opioids6%49 of 796 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: 3282024: 47946%
Drugs named by CMS: 25 in 2024, 20 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
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Dr. Daniel B. Castro has 2 publications on record
Dmand AI links 2 papers to Dr. Castro. The most frequent topics are Socioeconomic Factors. Dr. Castro's most frequent co-authors are Ira M. Lesser, MD and Madhukar Hariprasad Trivedi, MD.
Papers2
Topics Dr. Castro writes about most
- Socioeconomic Factors
Dr. Castro's most frequent co-authors
Recent publications by Dr. Castro
Med Care
Antidepressive Agents, Second-GenerationCitalopramDepressive Disorder
See who Dr. Castro researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Castro works with, so you can find a warm path to the right family medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Daniel B. Castro received $462 in industry payments from 2016 to 2024
CMS Open Payments shows 19 general payments to Dr. Castro from 4 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Relypsa, Inc. paid the most, $301.
General payments to Dr. Castro by program year, 2016 to 2024
Companies that paid Dr. Castro the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Daniel B. Castro graduated from University Of Minnesota Medical School
Dr. Castro graduated from University Of Minnesota Medical School in 1982.
- Medical school
- Board certified in family medicine
- Board certified in geriatric medicine
Source: Dmand AI Professional Profile Data
Dr. Daniel B. Castro accepts plans from 1 insurance carrier
Dr. Castro 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. Castro accepts, by number of carriers
- HMO1
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Daniel B. Castro'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)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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Daniel B. Castro
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. Daniel B. Castro's NPI number?
Dr. Daniel B. Castro's NPI number is 1174684567. It was assigned on December 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Daniel B. Castro?
Dr. Daniel B. Castro is a family medicine physician in Torrance, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Daniel B. Castro practice?
Dr. Castro practices at 1000 W Carson St, Torrance, CA 90509. Dr. Castro's primary practice is Harbor-UCLA Medical Center in Torrance, California, part of County of Los Angeles.
What is Dr. Daniel B. Castro's office phone number?
The practice phone on file for Dr. Castro is (310) 222-2345.
What is Dr. Daniel B. Castro's medical license number?
Dr. Castro holds California license G51143.
Which hospitals is Dr. Daniel B. Castro affiliated with?
Dr. Castro practices at Harbor-UCLA Medical Center in Torrance, California.
What medical group is Dr. Daniel B. Castro part of?
Dr. Castro is linked to Harbor-UCLA Medical Center.
Is Dr. Daniel B. Castro board certified?
Yes. Dr. Castro is board certified in family medicine by the American Board of Family Medicine.
Where did Dr. Daniel B. Castro go to medical school?
Dr. Castro graduated from University Of Minnesota Medical School in 1982.
What drugs does Dr. Daniel B. Castro prescribe most?
In 2024 Medicare Part D data, Dr. Castro's most prescribed drugs by claims were Atorvastatin Calcium, Gabapentin and Metformin HCl.
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Has Dr. Daniel B. Castro received payments from drug or device companies?
CMS Open Payments shows $462 in general payments to Dr. Castro from 4 companies from 2016 to 2024. The largest total came from Relypsa, Inc.
How long has Dr. Daniel B. Castro been practicing?
Dr. Castro graduated from medical school in 1982, 44 years ago.
Does Dr. Daniel B. Castro do research?
Dmand AI links 2 publications to Dr. Castro.
Who does Dr. Daniel B. Castro publish with?
Dr. Castro's most frequent co-authors are Ira M. Lesser, MD (1 shared paper) and Madhukar Hariprasad Trivedi, MD (1 shared paper).
What insurance does Dr. Daniel B. Castro accept?
Dr. Castro 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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