Marcia Elana Elfenbaum, M.D.
Pain Medicine (Physical Medicine & Rehabilitation) Physician · San Diego, CA
Marcia Elana Elfenbaum, M.D. is a pain medicine (physical medicine & rehabilitation) physician with a practice address in San Diego, California, and NPI 1184640583, issued on Jul 15, 2006. Check the license (California A63369, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marcia Elana Elfenbaum
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Physical Medicine & Rehabilitation) Physician 2081P2900X
- License number
- A63369 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9246 Lightwave Ave Suite 120, San Diego, CA 92123
- Phone
- (800) 270-5016
- Enumerated
- Jul 15, 2006
- Record last updated
- Feb 4, 2026
- Fax
- (800) 680-3626
- Medicaid ID
- 00A633690 CA
- Entity
- Type 1 · individual
8 nearest pain medicine (physical medicine & rehabilitation) physician records → All 290 in California → Look up another NPI →
Verify Marcia Elana Elfenbaum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A63369Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average pain medicine (physical medicine & rehabilitation) physician in 2024
128 Medicare Part D claims for 11 beneficiaries, against an average of 1,479 among the 1,457 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims. 64 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen30 claims
- Gabapentin22 claims
- Hysingla Er20 claims
- Oxycodone Hcl14 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.
Industry payments in 2024: $40.76
2 payments; by number, the most common kind was food and beverage; the largest payer was Lundbeck LLC. The 1,126 providers of this specialty with any payment received $2,193.30 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.
Marcia Elana Elfenbaum among 290 pain medicine (physical medicine & rehabilitation) physician records in California
Marcia Elana Elfenbaum, M.D. is one of 290 pain medicine (physical medicine & rehabilitation) physician records with a practice address in California. 85% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 60% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2081P2900X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Physical Medicine & Rehabilitation) Physician providers in California
There are 290 pain medicine (physical medicine & rehabilitation) physician records in California.
All 290 in California → Every provider in San Diego → Pain Medicine (Physical Medicine & Rehabilitation) Physician nationwide →
The 8 pain medicine (physical medicine & rehabilitation) physician records with the nearest ZIP codes
- Saiyun Hou, M.D., PH.DSan Diego, CA 921231326464660
- Alan Hurschman, M.D.San Diego, CA 921231326031980
- John Jahan, M.D.San Diego, CA 921231326006941
- John Qian, M.D.San Diego, CA 921231649290891
- Walter Strauser, M.D.San Diego, CA 921231518957521
- Seth Katzen, DOSan Diego, CA 921211164942223
- Daniel Stuart, MDSan Diego, CA 921211326203605
- Timothy Chong, M.D.San Diego, CA 921281992901219
Common questions
What is Marcia Elana Elfenbaum, M.D.'s NPI number?
Marcia Elana Elfenbaum, M.D.'s National Provider Identifier (NPI) is 1184640583, issued on Jul 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcia Elana Elfenbaum, M.D. located?
The NPPES record lists a practice address at 9246 Lightwave Ave Suite 120, San Diego, CA, 92123. Phone: (800) 270-5016. Providers update this record themselves, so call before visiting.
How can I verify Marcia Elana Elfenbaum, M.D.'s license?
NPPES lists California license number A63369, 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 Marcia Elana Elfenbaum, M.D. prescribe under Medicare Part D?
In 2024, Marcia Elana Elfenbaum, M.D. had 128 Medicare Part D claims for 11 beneficiaries; the average among pain medicine (physical medicine & rehabilitation) physician prescribers was 1,479. 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.