William Marcus Lowenhaupt, ASW
Clinical Social Worker · Sacramento, CA
William Marcus Lowenhaupt, ASW is a clinical social worker with a practice address in Sacramento, California, and NPI 1790552438, issued on Dec 4, 2023. Check the license with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Marcus Lowenhaupt
- Credential
- ASW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- Practice location
- 1103 N B St, Sacramento, CA 95811
- Phone
- (916) 378-8266
- Enumerated
- Dec 4, 2023
- Record last updated
- Dec 29, 2023
- Medicare enrollment
- Enrolled (PECOS I20260323002347); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 36,261 in California → Look up another NPI →
Also registered at 1103 N B St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Iris AndersonCase Manager/Care Coordinator1376298638
- Ashley AustinAdult Companion1013416031
- Zoe BockSocial Worker1760020705
- Latrina Bradford, LVNLicensed Practical Nurse1487984894
- Vinita BurroughsAdult Companion1699506592
Verify William Marcus Lowenhaupt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William Marcus Lowenhaupt among 36,261 clinical social worker records in California
William Marcus Lowenhaupt, ASW is one of 36,261 clinical social worker records with a practice address in California. 6% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2023, is newer than 86% of them.
- NPI issued2023 · 86% of these records are older, 10% newer
- In a Medicare fileNo · 6% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated2020 · median 2012 among the 4,008 with a school on file
- Record last updated2023 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,120 clinical social worker records list a practice address in Sacramento
They are 1,120 of the 33,083 NPPES records with a practice address in Sacramento, and 36,261 clinical social worker records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 36,261 in California → Every provider in Sacramento → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Natalie Benjamin, LCSWSacramento, CA 958111790974277
- Cynthia Cassano, LCSWSacramento, CA 958111033306634
- Natalie Daylami, LCSWSacramento, CA 958111699774737
- Susan Goetz, LCSWSacramento, CA 958111285803106
- Tracie Hall, LCSWSacramento, CA 958111043374994
- Claudia Hein, LCSW 29220Sacramento, CA 958111700087467
- Melissa Hensel, LCSWSacramento, CA 958111063523363
- Mai Her-Holloway, LCSWSacramento, CA 958111417169699
Common questions
What is William Marcus Lowenhaupt, ASW's NPI number?
William Marcus Lowenhaupt, ASW's National Provider Identifier (NPI) is 1790552438, issued on Dec 4, 2023. An NPI identifies a provider in billing; it is not a license.
Where is William Marcus Lowenhaupt, ASW located?
The NPPES record lists a practice address at 1103 N B St, Sacramento, CA, 95811. Phone: (916) 378-8266. Providers update this record themselves, so call before visiting.
How can I verify William Marcus Lowenhaupt, ASW's license?
Search the California board that licenses this profession; the NPPES record confirms identity 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. 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.