Dr. Brian L. Nielsen, DO
- Part D claims, 2024
- 364
- Hospital affiliations
- 2
- Medical group
- 1
- Insurance carriers
- 1
- State license
- 1
- Practice address
- 25825 South Vermont Avenue, Harbor City, CA 90710
- Practice phone
- Call (310) 325-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nielsen'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. Brian L. Nielsen is an internist in Harbor City, California
Dr. Nielsen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
Dr. Nielsen's NPI, 1710143573, was assigned on July 31, 2008. Dr. Nielsen graduated from Dr. Kiran C. Patel College of Osteopathic Medicine in 2006. Dr. Nielsen holds California license 20A10451.
- NPI
- 1710143573NPI Registry (opens in a new tab)
- NPI enumeration date
- July 31, 2008
- NPI status
- Active
- Practice phone
- (310) 325-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Brian L. Nielsen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California
Dr. Nielsen's primary practice is Kaiser Permanente South Bay Medical Center, at 25825 South Vermont Avenue, Harbor City, CA 90710 in Los Angeles County. The practice phone is (310) 325-5111.
- Kaiser Permanente South Bay Medical Center25825 South Vermont Avenue, Harbor City, CA 90710 · Los Angeles CountyPhone(310) 325-5111
Source: Dmand AI Affiliation Data
Dr. Brian L. Nielsen is affiliated with 2 sites of care and 1 medical group
Dr. Nielsen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente. Dr. Nielsen is also affiliated with Arrowhead Regional Medical Center. The medical group on file is Southern California Permanente Medical Group.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian L. Nielsen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nielsen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South Bay Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian L. Nielsen is one of 16,751 internists in California
Internal medicine is Dr. Nielsen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nielsen is board certified in internal medicine by the AOA Board of Internal Medicine. Dr. Nielsen is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. Nielsen
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. Brian L. Nielsen's patients have a median age of 75
Across all payers, Dmand AI patient panel data puts Dr. Nielsen's median patient age at 75, with 52% women.
Dr. Nielsen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women52%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Brian L. Nielsen wrote 364 Medicare Part D claims in 2024
In 2024, Dr. Nielsen wrote 364 Medicare Part D claims for 165 patients. 93% of them were for generic drugs. CMS names the drug for 211 of them, across 11 drugs with 11 or more claims each, at $2,117 in total drug cost. In 2023, CMS named 195 claims across 12 drugs.
Dr. Nielsen's Part D claims by kind of drug, 2024
- Generic338 claims93%
- Brand-name and other26 claims7%
Dr. Nielsen'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. Nielsen's Part D claims, 2024
- Opioids6%22 of 364 claims
- Antibiotics30%111 of 364 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: 1952024: 2118%
Drugs named by CMS: 11 in 2024, 12 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. Brian L. Nielsen graduated from Dr. Kiran C. Patel College of Osteopathic Medicine
Dr. Nielsen graduated from Dr. Kiran C. Patel College of Osteopathic Medicine in 2006. Dr. Nielsen is a member of AOA.
- Medical school
- Board certified in internal medicine
- Board certified in 2008 - 2026
Source: Dmand AI Professional Profile Data
Dr. Brian L. Nielsen accepts plans from 1 insurance carrier
Dr. Nielsen is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
- Kaiser Permanente
Plan types Dr. Nielsen accepts, by number of carriers
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Brian L. Nielsen'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) |
| 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. Brian L. Nielsen
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. Brian L. Nielsen's NPI number?
Dr. Brian L. Nielsen's NPI number is 1710143573. It was assigned on July 31, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian L. Nielsen?
Dr. Brian L. Nielsen is an internist in Harbor City, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Brian L. Nielsen practice?
Dr. Nielsen practices at 25825 South Vermont Avenue, Harbor City, CA 90710. Dr. Nielsen's primary practice is Kaiser Permanente South Bay Medical Center in Harbor City, California, part of Kaiser Permanente.
What is Dr. Brian L. Nielsen's office phone number?
The practice phone on file for Dr. Nielsen is (310) 325-5111.
What is Dr. Brian L. Nielsen's medical license number?
Dr. Nielsen holds California license 20A10451.
Which hospitals is Dr. Brian L. Nielsen affiliated with?
Dr. Nielsen practices at Kaiser Permanente South Bay Medical Center in Harbor City, California. Dr. Nielsen is also affiliated with Arrowhead Regional Medical Center.
What medical group is Dr. Brian L. Nielsen part of?
Dr. Nielsen is linked to Southern California Permanente Medical Group.
Is Dr. Brian L. Nielsen board certified?
Yes. Dr. Nielsen is board certified in internal medicine by the AOA Board of Internal Medicine.
Where did Dr. Brian L. Nielsen go to medical school?
Dr. Nielsen graduated from Dr. Kiran C. Patel College of Osteopathic Medicine in 2006.
What drugs does Dr. Brian L. Nielsen prescribe most?
In 2024 Medicare Part D data, Dr. Nielsen's most prescribed drugs by claims were Cefuroxime, Azithromycin and Hydrocodone-Acetaminophen.
How long has Dr. Brian L. Nielsen been practicing?
Dr. Nielsen graduated from medical school in 2006, 20 years ago.
What insurance does Dr. Brian L. Nielsen accept?
Dr. Nielsen is in network with 1 carrier, including Kaiser Permanente. EPO plans come from the most carriers, 1. Check the plan with the practice before a visit.
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