Susan J. Mackensen, M.D.
Pediatrics Physician · Los Angeles, CA
Susan J. Mackensen, M.D. is a pediatrics physician with a practice address in Los Angeles, California, and NPI 1659309896, issued on Jun 28, 2006. Check the license (California AFE46013, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Susan J. Mackensen
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- AFE46013 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1809 Preuss RD, Los Angeles, CA 90035
- Phone
- (310) 838-3092
- Enumerated
- Jun 28, 2006
- Record last updated
- Mar 24, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (310) 287-0656
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Verify Susan J. Mackensen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license AFE46013Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Susan J. Mackensen among 9,272 pediatrics physician records in California
Susan J. Mackensen, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 56% newer
- In a Medicare fileNo · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2014 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
919 pediatrics physician records list a practice address in Los Angeles
They are 919 of the 69,537 NPPES records with a practice address in Los Angeles, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 9,272 in California → Every provider in Los Angeles → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Stephanie Be, DOLos Angeles, CA 900351104276229
- Rahul Grover, M.D.Los Angeles, CA 900351851356596
- Margaret Hsiau, M.D.Los Angeles, CA 900351598928426
- Daniel MaghenLos Angeles, CA 900351538666037
- Susan Boudakian, DOLos Angeles, CA 900341982808010
- Nicolas Campero, MDLos Angeles, CA 900341831247857
- Brian ChangLos Angeles, CA 900341770119752
- Yunsun Choi, MDLos Angeles, CA 900341609928068
Common questions
What is Susan J. Mackensen, M.D.'s NPI number?
Susan J. Mackensen, M.D.'s National Provider Identifier (NPI) is 1659309896, issued on Jun 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Susan J. Mackensen, M.D. located?
The NPPES record lists a practice address at 1809 Preuss RD, Los Angeles, CA, 90035. Phone: (310) 838-3092. Providers update this record themselves, so call before visiting.
How can I verify Susan J. Mackensen, M.D.'s license?
NPPES lists California license number AFE46013, 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.
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.