Sarah K. Harper, D.O.
Psychiatry Physician · Torrance, CA
Sarah K. Harper, D.O. is a psychiatry physician with a practice address in Torrance, California, and NPI 1992906671, issued on May 30, 2007. Check the license (California 20A10543, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sarah K. Harper
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 20A10543 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23440 Hawthorne Blvd, Torrance, CA 90505
- Phone
- (424) 634-0668
- Enumerated
- May 30, 2007
- Record last updated
- Jun 17, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 23440 Hawthorne Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Cruse, LMFTMarriage & Family Therapist1467755322
- Michelle Furuta, MDPsychiatry Physician1801097852
- Ronald Gelfand, MDPsychiatry Physician1700845088
- Erin Kamada, OTOccupational Therapist1184927667
- Jennifer Kromberg, PSY.D.Psychologist1134661465
- Bobbi O'BrienClinical Psychologist1962685255
Verify Sarah K. Harper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A10543Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average psychiatry physician in 2024
179 Medicare Part D claims for 21 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Quetiapine Fumarate27 claims
- Bupropion Xl16 claims
- Fluoxetine Hcl15 claims
- Duloxetine Hcl12 claims
- Lamotrigine12 claims
- Trintellix11 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.
150 psychiatry physician records list a practice address in Torrance
They are 150 of the 8,901 NPPES records with a practice address in Torrance, and 8,673 psychiatry physician records in California.
All 150 in Torrance → All 8,673 in California → Every provider in Torrance →
Other psychiatry physician records in California
- Nancy Aaen, MDNapa, CA1609816669
- Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
- Mekabiz Abaian, MDSan Bernardino, CA1891090163
- Brenda Abarca, MDTorrance, CA1407485527
- Pilar Abascal, M.D.Los Angeles, CA1730528191
- Michele Abbasi, M.D.Westlake Village, CA1093940330
- Zohaib AbbasiMartinez, CA1013392224
- Sandy Abdelkedous, MDFresno, CA1306093109
- Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
- Ezzat Abdelmalek, M.DDana Point, CA1992828826
Common questions
What is Sarah K. Harper, D.O.'s NPI number?
Sarah K. Harper, D.O.'s National Provider Identifier (NPI) is 1992906671, issued on May 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sarah K. Harper, D.O. located?
The NPPES record lists a practice address at 23440 Hawthorne Blvd, Torrance, CA, 90505. Phone: (424) 634-0668. Providers update this record themselves, so call before visiting.
How can I verify Sarah K. Harper, D.O.'s license?
NPPES lists California license number 20A10543, 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 Sarah K. Harper, D.O. prescribe under Medicare Part D?
In 2024, Sarah K. Harper, D.O. had 179 Medicare Part D claims for 21 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.