Conner Mansfield Olsen, MD
Hospice and Palliative Medicine (Internal Medicine) Physician · Los Angeles, CA
Conner Mansfield Olsen, MD is a hospice and palliative medicine (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1821594243, issued on Apr 4, 2018. Check the license (California A178873, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Conner Mansfield Olsen
- Credential
- MD
- Primary taxonomy
- Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
- License number
- A178873 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St Ste 1000, Los Angeles, CA 90033
- Phone
- (323) 442-5100
- Enumerated
- Apr 4, 2018
- Record last updated
- Aug 28, 2023
- Medicare enrollment
- Enrolled (PECOS I20230825000995); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospice and palliative medicine (internal medicine) physician records → All 260 in California → Look up another NPI →
Also registered at 1520 San Pablo St Ste 1000
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Conner Mansfield Olsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178873Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024
244 Medicare Part D claims for 40 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 109 claims were for opioids.
Most prescribed
- Oxycodone Hcl42 claims
- Gabapentin18 claims
- Methadone Hcl15 claims
- Buprenorphine14 claims
- Lorazepam13 claims
- Duloxetine Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Scripps Health Inpatient Providers Medical Group IncSan Diego, CA
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Conner Mansfield Olsen among 260 hospice and palliative medicine (internal medicine) physician records in California
Conner Mansfield Olsen, MD is one of 260 hospice and palliative medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 81% of them.
- NPI issued2018 · 81% of these records are older, 15% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2018 · median 2010 among the 193 with a school on file
- Record last updated2023 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospice and Palliative Medicine (Internal Medicine) Physician providers in California
There are 260 hospice and palliative medicine (internal medicine) physician records in California.
All 260 in California → Every provider in Los Angeles → Hospice and Palliative Medicine (Internal Medicine) Physician nationwide →
The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes
- Emily Beers, M.D.Los Angeles, CA 900331649477258
- Shyam Bhansali, D.O.Los Angeles, CA 900331013396068
- Alec Borsook, MDLos Angeles, CA 900331841877016
- Pamelyn Close, MDLos Angeles, CA 900331831380930
- Alexander Madonis, M.D.Los Angeles, CA 900331235435074
- Peter Phung, M.D.Los Angeles, CA 900331215297767
- Qiaochu Qi, M.D.Los Angeles, CA 900331952892077
- Jesse Soodalter, MDLos Angeles, CA 900331366671711
Common questions
What is Conner Mansfield Olsen, MD's NPI number?
Conner Mansfield Olsen, MD's National Provider Identifier (NPI) is 1821594243, issued on Apr 4, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Conner Mansfield Olsen, MD located?
The NPPES record lists a practice address at 1520 San Pablo St Ste 1000, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.
How can I verify Conner Mansfield Olsen, MD's license?
NPPES lists California license number A178873, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Conner Mansfield Olsen, MD prescribe under Medicare Part D?
In 2024, Conner Mansfield Olsen, MD had 244 Medicare Part D claims for 40 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.