Laurence Katznelson, MD
Endocrinology, Diabetes & Metabolism Physician · Los Angeles, CA
Laurence Katznelson, MD is an endocrinology, diabetes & metabolism physician with a practice address in Los Angeles, California, and NPI 1013082643, issued on Nov 21, 2006. Check the license (California G87279, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Laurence Katznelson
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G87279 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8723 Alden Dr Ste Ssb 290, Los Angeles, CA 90048
- Phone
- (310) 423-3870
- Enumerated
- Nov 21, 2006
- Record last updated
- May 7, 2024
- Fax
- (310) 423-0429
- Medicare enrollment
- Enrolled (PECOS I20040924000977); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Verify Laurence Katznelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G87279Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
38 Medicare Part D claims, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims.
Most prescribed
- Hydrocortisone14 claims
- Levothyroxine Sodium12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $29,300.70
4 payments; by number, the most common kind was consulting fee; the largest payer was Corcept Therapeutics. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Cedars-Sinai Medical CenterLos Angeles, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Laurence Katznelson among 1,131 endocrinology, diabetes & metabolism physician records in California
Laurence Katznelson, MD is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1985 · median 2003 among the 779 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Los Angeles → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Anat Ben Shlomo, M.D.Los Angeles, CA 900481306990502
- Vivien Bonert, M.D.Los Angeles, CA 900481235117128
- Glenn Braunstein, M.D.Los Angeles, CA 900481952389751
- Odelia Cooper, M.D.Los Angeles, CA 900481598977407
- Roma Gianchandani, MB, BSWest Hollywood, CA 900481275616187
- Mark Goodarzi, M.D.Los Angeles, CA 900481770511867
- Azarmindokht Khosravi, M.D.West Hollywood, CA 900481891818332
- James Kirkland, M.D.Los Angeles, CA 900481487682308
Common questions
What is Laurence Katznelson, MD's NPI number?
Laurence Katznelson, MD's National Provider Identifier (NPI) is 1013082643, issued on Nov 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Laurence Katznelson, MD located?
The NPPES record lists a practice address at 8723 Alden Dr Ste Ssb 290, Los Angeles, CA, 90048. Phone: (310) 423-3870. Providers update this record themselves, so call before visiting.
How can I verify Laurence Katznelson, MD's license?
NPPES lists California license number G87279, 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 Laurence Katznelson, MD prescribe under Medicare Part D?
In 2024, Laurence Katznelson, MD had 38 Medicare Part D claims; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Laurence Katznelson, MD's MIPS final score?
The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.