LARRY STRIEFF M.D.
NPI 1073525564
Internal Medicine - Medical Oncology in Oakland, CA

NPI Status: Active since August 12, 2006

Contact Information

2633 TELEGRAPH AVE
SUITE 104
OAKLAND, CA
ZIP 94612
Phone: (510) 830-3100
Fax: (510) 830-3316

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  • Individual
  • Male
  • Internal Medicine
  • Medical Oncology

About LARRY STRIEFF

This page provides the complete NPI Profile along with additional information for Larry Strieff, an internist established in Oakland, California with a medical specialization in Internal Medicine, focusing in medical oncology . The healthcare provider is registered in the NPI registry with number 1073525564 assigned on August 2006. The practitioner's primary taxonomy code is 207RX0202X with license number C31515 (CA). The provider is registered as an individual and his NPI record was last updated 13 years ago.

NPI
1073525564
Provider Name
LARRY STRIEFF M.D.
Gender
Male
Entity Type
Individual
Location Address
2633 TELEGRAPH AVE SUITE 104 OAKLAND, CA 94612
Location Phone
(510) 830-3100
Location Fax
(510) 830-3316
Mailing Address
2633 TELEGRAPH AVE SUITE 104 OAKLAND, CA 94612
Mailing Phone
(510) 830-3100
Mailing Fax
(510) 830-3316
Is Sole Proprietor?
No
Enumeration Date
08-12-2006
Last Update Date
04-18-2013
Code Navigator

An internist like Larry Strieff 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 Medical Oncology

Taxonomy Code
207RX0202X
Type
Allopathic & Osteopathic Physicians
License No.
C31515
License State
CA
Taxonomy Description
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

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
00C315150MEDICARE ID-TYPE UNSPECIFIED (04)CA 
00C315150MEDICAID (05)CA 
A34598MEDICARE UPIN (02)CA 

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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 1073525564, we treat the final digit (4) 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 4).

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.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 7 → 14 → 5 5 → 10 → 1 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 4 + 3 + 1 + 0 + 2 + 1 + 0 + 5 + 1 + 2 + 24 = 46

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 46 is 50. The difference is the calculated check digit.

50 - 46 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1073525564.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Clinic/Center (End-Stage Renal Disease (ESRD) Treatment)
2633 TELEGRAPH AVE, STE 115
OAKLAND, CA 94612
Internal Medicine (Hematology)
2633 TELEGRAPH AVE, #104
OAKLAND, CA 94612
Internal Medicine
2633 TELEGRAPH AVE, SUITE 104
OAKLAND, CA 94612

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073525564, enumerated as an "individual" on August 12, 2006.

The provider is located at 2633 TELEGRAPH AVE SUITE 104 OAKLAND, CA 94612 and the phone number is (510) 830-3100.

Internal Medicine with taxonomy code 207RX0202X and a focus in Medical Oncology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.