DOUGLAS RUSSELL STEWART MD
NPI 1740748573
Medical Genetics - Clinical Molecular Genetics in South San Francisco, CA

NPI Status: Active since March 11, 2019

Contact Information

701 GATEWAY BLVD STE 380
SOUTH SAN FRANCISCO, CA
ZIP 94080
Phone: (877) 688-0992

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Medical Genetics
Clinical Molecular Genetics
Accepts Insurance

About DOUGLAS STEWART

This page provides the complete NPI Profile along with additional information for Douglas Stewart, a provider established in South San Francisco, California with a medical specialization in Medical Genetics, focusing in clinical molecular genetics . The healthcare provider is registered in the NPI registry with number 1740748573 assigned on March 2019. The practitioner's primary taxonomy code is 207SG0203X with license number MD073490L (PA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI: 1740748573
Provider Name: DOUGLAS RUSSELL STEWART MD
Gender: Male
Entity Type: Individual
Location Address: 701 GATEWAY BLVD STE 380 SOUTH SAN FRANCISCO, CA 94080
Location Phone: (877) 688-0992
Mailing Address: 7057 WOLFTREE LN ROCKVILLE, MD 20852
Mailing Phone: (301) 984-7772
Is Sole Proprietor?: No
Enumeration Date: 03-11-2019
Last Update Date: 03-11-2019
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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: Medical Genetics Clinical Molecular Genetics
Taxonomy Code: 207SG0203X
Type: Allopathic & Osteopathic Physicians
License No.: MD073490L
License State: PA
Taxonomy Description: A clinical molecular geneticist demonstrates competence in performing and interpreting molecular analyses relevant to the diagnosis and management of human genetic diseases and is a consultant regarding laboratory diagnosis of a broad range of inherited disorders.

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	207R00000X	Allopathic & Osteopathic Physicians	Internal Medicine	MD073490L (PA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Moda Health Plan, Inc.

Moda Select Alaska Bronze 6500 - PPO
Moda Select Alaska Bronze HDHP 5500 - PPO
Moda Select Alaska Gold 1500 - PPO
Moda Select Alaska Silver 4500 - PPO
Moda Select Alaska Standard Bronze - PPO
Moda Select Alaska Standard Gold - PPO
Moda Select Alaska Standard Silver - PPO
Moda Select Texas Bronze 8700 ($0 Virtual Urgent Care through CirrusMD) - EPO
Moda Select Texas Bronze HDHP 7500 - EPO
Moda Select Texas Standard Bronze - EPO
Moda Select Texas Standard Gold - EPO
Moda Select Texas Standard Silver - EPO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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 1740748573, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

Check

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 4 → 8 7 → 14 → 5 8 → 16 → 7 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 1 + 4 + 4 + 1 + 6 + 5 + 1 + 4 + 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 1740748573.