STUMP AND AHMADPOUR
NPI 1134257850
Internal Medicine - Interventional Cardiology in Lakewood, CA
NPI Status: Active since March 02, 2007
Contact Information
3300 E SOUTH ST
SUITE 303
LAKEWOOD, CA
ZIP 90805
Phone: (562) 925-8407
Fax: (562) 925-1723
NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 12, 2026.
Record update history: Sep 11, 2025, Aug 22, 2020 (2 updates tracked since 2020).
- Organization
- Internal Medicine
- Interventional Cardiology
About STUMP AND AHMADPOUR
This page provides the complete NPI Profile along with additional information for Stump And Ahmadpour, an internist established in Lakewood, California operating as a Internal Medicine, focusing in interventional cardiology . The healthcare provider is registered in the NPI registry with number 1134257850 assigned on March 2007. The practitioner's primary taxonomy code is 207RI0011X with license number A30282 (CA). The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Hed Ahmadpour M.d. (Partner)
- NPI
- 1134257850
- Provider Name
- STUMP AND AHMADPOUR
- Entity Type
- Organization
- Location Address
- 3300 E SOUTH ST SUITE 303 LAKEWOOD, CA 90805
- Location Phone
- (562) 925-8407
- Location Fax
- (562) 925-1723
- Mailing Address
- PO BOX 801463 SANTA CLARITA, CA 91380
- Mailing Phone
- (661) 295-0859
- Mailing Fax
- (866) 431-1210
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 03-02-2007
- Last Update Date
- 09-11-2025
- Code Navigator
An internist like Stump And Ahmadpour is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.
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
Internal Medicine Interventional Cardiology
- Taxonomy Code
- 207RI0011X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A30282
- License State
- CA
- Taxonomy Description
- An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207RC0000X | Allopathic & Osteopathic Physicians | Internal Medicine | A30282 (CA) |
Group Taxonomy 193400000X MULTIPLE SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
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 |
|---|---|---|---|
| A30282 | OTHER (01) | CA | PARTNER LICENSE# |
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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 1134257850, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).
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 60 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
LONG BEACH, CA 90805
LONG BEACH, CA 90805
LAKEWOOD, CA 90805
LAKEWOOD, CA 90805
LONG BEACH, CA 90805
LAKEWOOD, CA 90805
LAKEWOOD, CA 90805
LAKEWOOD, CA 90805
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1134257850, enumerated as an "organization" on March 02, 2007.
The provider is located at 3300 E SOUTH ST SUITE 303 LAKEWOOD, CA 90805 and the phone number is (562) 925-8407.
Internal Medicine with taxonomy code 207RI0011X and a focus in Interventional Cardiology.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
