DR. ERIN K JOHNSON MD
NPI 1669997847
Obstetrics & Gynecology in Saint Louis, MO
NPI Status: Active since August 08, 2017
Contact Information
4901 FOREST PARK AVE STE 710
SAINT LOUIS, MO
ZIP 63108
Phone: (206) 834-4100
- Individual
- Female
- Obstetrics & Gynecology
About ERIN JOHNSON
This page provides the complete NPI Profile along with additional information for Erin Johnson, a women's health care provider established in Saint Louis, Missouri with a medical specialization in Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1669997847 assigned on August 2017. The practitioner's primary taxonomy code is 207V00000X with license number 2022022404 (MO). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1669997847
- Provider Name
- DR. ERIN K JOHNSON MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 4901 FOREST PARK AVE STE 710 SAINT LOUIS, MO 63108
- Location Phone
- (206) 834-4100
- Mailing Address
- 4901 FOREST PARK AVE STE 710 SAINT LOUIS, MO 63108
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 08-08-2017
- Last Update Date
- 03-11-2026
- Code Navigator
Women's health care providers like Erin Johnson 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
Secondary Locations
- 910 W 5th Ave Ste 300
Spokane, WA 99204
(509) 755-5205
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
- Taxonomy Code
- 207V00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 2022022404
- License State
- MO
- Taxonomy Description
- An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
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 | 175F00000X | Other Service Providers | Naturopath | |
| 2 | 207V00000X | Allopathic & Osteopathic Physicians | Obstetrics & Gynecology | 70086114 (WA) |
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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 1669997847, we treat the final digit (7) 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 83. The final step is to find the difference between that total and the next multiple of ten (90 - 83 = 7).
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 83 is 90. The difference is the calculated check digit.
Other Providers at the Same Location
The following 6 providers are registered at the same or a nearby location.
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
SAINT LOUIS, MO 63108
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669997847, enumerated as an "individual" on August 08, 2017.
The provider is located at 4901 FOREST PARK AVE STE 710 SAINT LOUIS, MO 63108 and the phone number is (206) 834-4100.
Obstetrics & Gynecology with taxonomy code 207V00000X.
