Abraham Hershel Grosswasser, D.C.
Chiropractor · Los Angeles, CA
Abraham Hershel Grosswasser, D.C. is a chiropractor with a practice address in Los Angeles, California, and NPI 1326487844, issued on Jun 18, 2013. Check the license (California 31573, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Abraham Hershel Grosswasser
- Credential
- D.C.
- Primary taxonomy
- Chiropractor 111N00000X
- License number
- 31573 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2001 S Barrington Ave, Los Angeles, CA 90025
- Phone
- (310) 575-5575
- Enumerated
- Jun 18, 2013
- Record last updated
- Jun 18, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130805000721); accepts Medicare assignment
- Medical or professional school
- Logan College Of Chiropractic, 2000
- Entity
- Type 1 · individual
Also registered at 2001 S Barrington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hedie Adamous, DCChiropractor1508184185
- Kristin Allen, M.A., LMFTMarriage & Family Therapist1902162282
- Scott Bass, PSY.D.Clinical Psychologist1154340784
- Chloe BeanMarriage & Family Therapist1174367379
- Aviva Bernat, M.D.Internal Medicine Physician1407836323
- George Blair II, MDPsychiatry Physician1588678973
Verify Abraham Hershel Grosswasser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 31573Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Boulevard Medical Group IncStudio City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chiropractor providers in California
There are 11,498 chiropractor records in California.
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Common questions
What is Abraham Hershel Grosswasser, D.C.'s NPI number?
Abraham Hershel Grosswasser, D.C.'s National Provider Identifier (NPI) is 1326487844, issued on Jun 18, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Abraham Hershel Grosswasser, D.C. located?
The NPPES record lists a practice address at 2001 S Barrington Ave, Los Angeles, CA, 90025. Phone: (310) 575-5575. Providers update this record themselves, so call before visiting.
How can I verify Abraham Hershel Grosswasser, D.C.'s license?
NPPES lists California license number 31573, as entered by the provider. 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. 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.