Mitchell Eugene Geffner, MD
Pediatric Endocrinology Physician · Los Angeles, CA
Mitchell Eugene Geffner, MD is a pediatric endocrinology physician with a practice address in Los Angeles, California, and NPI 1043302391, issued on Sep 28, 2006. Check the license (California G32337, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mitchell Eugene Geffner
- Credential
- MD
- Primary taxonomy
- Pediatric Endocrinology Physician 2080P0205X
- License number
- G32337 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4650 W Sunset Blvd, Los Angeles, CA 90027
- Phone
- (323) 669-4606
- Enumerated
- Sep 28, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (323) 664-0337
- Medicaid ID
- 00G323370 CA
- Medicare enrollment
- Enrolled (PECOS I20100316000082); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1975
- Entity
- Type 1 · individual
8 nearest pediatric endocrinology physician records → All 207 in California → Look up another NPI →
Also registered at 4650 W Sunset Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ahmed AbuhamadStudent in an Organized Health Care Education/Training Program1386478915
- Joanna Aceto, D.D.S.Pediatric Dentistry1033522578
- Etai Adam, M.D.Pediatrics Physician1578811998
Verify Mitchell Eugene Geffner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G32337Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average pediatric endocrinology physician in 2024
11 Medicare Part D claims, against an average of 105 among the 386 providers of this specialty who prescribed in Part D.
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.
Industry payments in 2024: $30,510.00
27 payments; by number, the most common kind was food and beverage; the largest payer was Neurocrine Biosciences, Inc. The 931 providers of this specialty with any payment received $4,382.94 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.
Bills Medicare through one group practice
- Usc Care Medical Group IncLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mitchell Eugene Geffner among 207 pediatric endocrinology physician records in California
Mitchell Eugene Geffner, MD is one of 207 pediatric endocrinology physician records with a practice address in California. 63% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileYes · 23% of these records are
- Graduated1975 · median 2002 among the 46 with a school on file
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0205X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Endocrinology Physician providers in California
There are 207 pediatric endocrinology physician records in California.
All 207 in California → Every provider in Los Angeles → Pediatric Endocrinology Physician nationwide →
The 8 pediatric endocrinology physician records with the nearest ZIP codes
- Lily Chao, MDLos Angeles, CA 900271508031352
- Richard Fefferman, MDLos Angeles, CA 900271053482943
- Jessica Ferris, M.D.Los Angeles, CA 900271730477944
- Lynda Fisher, MDLos Angeles, CA 900271043301344
- Debra Jeandron, MDLos Angeles, CA 900271720188469
- Francine Kaufman, M.DLos Angeles, CA 900271376624148
- Ahlee Kim, M.D.Los Angeles, CA 900271639513955
- Joshua May, MDLos Angeles, CA 900271043404288
Common questions
What is Mitchell Eugene Geffner, MD's NPI number?
Mitchell Eugene Geffner, MD's National Provider Identifier (NPI) is 1043302391, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell Eugene Geffner, MD located?
The NPPES record lists a practice address at 4650 W Sunset Blvd, Los Angeles, CA, 90027. Phone: (323) 669-4606. Providers update this record themselves, so call before visiting.
How can I verify Mitchell Eugene Geffner, MD's license?
NPPES lists California license number G32337, 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 Mitchell Eugene Geffner, MD prescribe under Medicare Part D?
In 2024, Mitchell Eugene Geffner, MD had 11 Medicare Part D claims; the average among pediatric endocrinology physician prescribers was 105. 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.