MARCIA ELANA ELFENBAUM M.D.
NPI 1184640583
Physical Medicine & Rehabilitation - Pain Medicine in San Diego, CA
NPI Status: Active since July 15, 2006
Contact Information
9246 LIGHTWAVE AVE SUITE 120
SAN DIEGO, CA
ZIP 92123
Phone: (800) 270-5016
Fax: (800) 680-3626
- Individual
- Female
- Physical Medicine & Rehabilitation
- Pain Medicine
- PECOS Enrolled
About MARCIA ELFENBAUM
This page provides the complete NPI Profile along with additional information for Marcia Elfenbaum, a provider established in San Diego, California with a medical specialization in Physical Medicine & Rehabilitation, focusing in pain medicine . The healthcare provider is registered in the NPI registry with number 1184640583 assigned on July 2006. The practitioner's primary taxonomy code is 2081P2900X with license number A63369 (CA). The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1184640583
- Provider Name
- MARCIA ELANA ELFENBAUM M.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 9246 LIGHTWAVE AVE SUITE 120 SAN DIEGO, CA 92123
- Location Phone
- (800) 270-5016
- Location Fax
- (800) 680-3626
- Mailing Address
- PO BOX 927854 SAN DIEGO, CA 92192
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 07-15-2006
- Last Update Date
- 02-04-2026
- Code Navigator
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Physical Medicine & Rehabilitation Pain Medicine
- Taxonomy Code
- 2081P2900X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A63369
- License State
- CA
- Taxonomy Description
- A physician who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic or cancer pain in both hospital and ambulatory settings. Patient care needs may also be coordinated with other specialists.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Additional Identifiers
The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.
| Identifier | Type / Code | Identifier State | Identifier Issuer |
|---|---|---|---|
| 00A633690 | MEDICAID (05) | CA |
Medicare Participation & PECOS Enrollment Status
Marcia Elfenbaum is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Established patient office or other outpatient visit, 30-39 minutes
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
This service was performed 209 times for 28 patientsReviews for MARCIA ELANA ELFENBAUM M.D.
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1184640583, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 57 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1184640583, enumerated as an "individual" on July 15, 2006.
The provider is located at 9246 LIGHTWAVE AVE SUITE 120 SAN DIEGO, CA 92123 and the phone number is (800) 270-5016.
Physical Medicine & Rehabilitation with taxonomy code 2081P2900X and a focus in Pain Medicine.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
