DR. ALEXANDER MICHAEL QUAAS M.D., PH.D.
NPI 1194885921
Obstetrics & Gynecology - Reproductive Endocrinology in Solana Beach, CA

NPI Status: Active since December 11, 2006

Contact Information

462 STEVENS AVE
SUITE 206
SOLANA BEACH, CA
ZIP 92075
Phone: (619) 685-0649
Fax: (619) 685-0670

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  • Individual
  • Male
  • Obstetrics & Gynecology
  • Reproductive Endocrinology

About ALEXANDER QUAAS

This page provides the complete NPI Profile along with additional information for Alexander Quaas, a women's health care provider established in Solana Beach, California with a medical specialization in Obstetrics & Gynecology, focusing in reproductive endocrinology . The healthcare provider is registered in the NPI registry with number 1194885921 assigned on December 2006. The practitioner's primary taxonomy code is 207VE0102X with license number A112014 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1194885921
Provider Name
DR. ALEXANDER MICHAEL QUAAS M.D., PH.D.
Gender
Male
Entity Type
Individual
Location Address
462 STEVENS AVE SUITE 206 SOLANA BEACH, CA 92075
Location Phone
(619) 685-0649
Location Fax
(619) 685-0670
Mailing Address
462 STEVENS AVE SUITE 206 SOLANA BEACH, CA 92075
Mailing Phone
(619) 685-0649
Mailing Fax
(619) 685-0670
Is Sole Proprietor?
No
Enumeration Date
12-11-2006
Last Update Date
06-10-2025
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Women's health care providers like Alexander Quaas treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, 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

Obstetrics & Gynecology Reproductive Endocrinology

Taxonomy Code
207VE0102X
Type
Allopathic & Osteopathic Physicians
License No.
A112014
License State
CA
Taxonomy Description
An obstetrician/gynecologist who is capable of managing complex problems relating to reproductive endocrinology and infertility.

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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 1194885921, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
1
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
8
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
9
Unchanged
Pos 9
2
Doubled → 4
Check
1
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 9 → 18 → 9 8 → 16 → 7 5 → 10 → 1 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 8 + 4 + 1 + 6 + 8 + 1 + 0 + 9 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1194885921.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Psychologist (Clinical Child & Adolescent)
462 STEVENS AVE, SUITE 108
SOLANA BEACH, CA 92075
Psychologist (Clinical)
462 STEVENS AVE, SUIITE 108
SOLANA BEACH, CA 92075
Chiropractor
462 STEVENS AVE, SUITE 306
SOLANA BEACH, CA 92075
Social Worker (Clinical)
462 STEVENS AVE, SUITE 108
SOLANA BEACH, CA 92075
Marriage & Family Therapist
462 STEVENS AVE, SUITE 108
SOLANA BEACH, CA 92075
Obstetrics & Gynecology (Reproductive Endocrinology)
462 STEVENS AVE, SUITE 206
SOLANA BEACH, CA 92075

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1194885921, enumerated as an "individual" on December 11, 2006.

The provider is located at 462 STEVENS AVE SUITE 206 SOLANA BEACH, CA 92075 and the phone number is (619) 685-0649.

Obstetrics & Gynecology with taxonomy code 207VE0102X and a focus in Reproductive Endocrinology.