ONUMA AND LEE MD'S
NPI 1427054733
Internal Medicine - Gastroenterology in San Mateo, CA

NPI Status: Active since June 22, 2005

Contact Information

100 SOUTH ELLSWORTH AVENUE
SUITE 507
SAN MATEO, CA
ZIP 94401
Phone: (650) 342-7432
Fax: (650) 342-3239

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  • Organization
  • Internal Medicine
  • Gastroenterology

About ONUMA AND LEE MD'S

This page provides the complete NPI Profile along with additional information for Onuma And Lee Md's, an internist established in San Mateo, California operating as a Internal Medicine, focusing in gastroenterology . The healthcare provider is registered in the NPI registry with number 1427054733 assigned on June 2005. The practitioner's primary taxonomy code is 207RG0100X. The provider is registered as an organization and their NPI record was last updated 15 years 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 Edward K Onuma M.d. (Partner)

NPI
1427054733
Provider Name
ONUMA AND LEE MD'S
Entity Type
Organization
Location Address
100 SOUTH ELLSWORTH AVENUE SUITE 507 SAN MATEO, CA 94401
Location Phone
(650) 342-7432
Location Fax
(650) 342-3239
Mailing Address
100 SOUTH ELLSWORTH AVENUE SUITE 507 SAN MATEO, CA 94401
Mailing Phone
(650) 342-7432
Mailing Fax
(650) 342-3239
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-22-2005
Last Update Date
03-15-2011
Code Navigator

An internist like Onuma And Lee Md's 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 Gastroenterology

Taxonomy Code
207RG0100X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Group Taxonomy 193400000X 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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

EDWARD K ONUMA M.D.

Authorized Official Title
PARTNER
Authorized Official Phone
(650) 342-7432

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
A23667MEDICARE UPIN (02)CA 
G47302MEDICARE UPIN (02)CA 
I08998MEDICARE UPIN (02)CA 
YYY49120YMEDICARE ID-TYPE UNSPECIFIED (04) 

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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 1427054733, 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 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.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
2
Doubled → 4
Pos 4
7
Unchanged
Pos 5
0
Doubled → 0
Pos 6
5
Unchanged
Pos 7
4
Doubled → 8
Pos 8
7
Unchanged
Pos 9
3
Doubled → 6
Check
3
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 2 → 4 0 → 0 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 0 + 5 + 8 + 7 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1427054733.

Other Providers at the Same Location


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

Specialist
100 SOUTH ELLSWORTH AVENUE, SUITE 507
SAN MATEO, CA 94401
Specialist
100 SOUTH ELLSWORTH AVENUE, SUITE 507
SAN MATEO, CA 94401
Orthopaedic Surgery (Sports Medicine)
100 SOUTH ELLSWORTH AVENUE, SUITE 504
SAN MATEO, CA 94401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427054733, enumerated as an "organization" on June 22, 2005.

The provider is located at 100 SOUTH ELLSWORTH AVENUE SUITE 507 SAN MATEO, CA 94401 and the phone number is (650) 342-7432.

Internal Medicine with taxonomy code 207RG0100X and a focus in Gastroenterology.

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