GUIDESTAR ELDERCARE CORP - KS
NPI 1275484099
Internal Medicine in Columbia, MO
NPI Status: Active since February 06, 2026
Contact Information
303 N STADIUM BLVD FL 2
COLUMBIA, MO
ZIP 65203
Phone: (574) 546-1900
Fax: (574) 546-1999
- Organization
- Internal Medicine
About GUIDESTAR ELDERCARE CORP - KS
This page provides the complete NPI Profile along with additional information for Guidestar Eldercare Corp - Ks, an internist established in Columbia, Missouri operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1275484099 assigned on February 2026. The practitioner's primary taxonomy code is 207R00000X. The provider is registered as an organization and their NPI record was last updated March 2026. Guidestar Eldercare Corp - Ks operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Steven L Posar Md (Exec. Chairman & Chief Med. Officer)
- NPI
- 1275484099
- Provider Name
- GUIDESTAR ELDERCARE CORP - KS
- Entity Type
- Organization
- Location Address
- 303 N STADIUM BLVD FL 2 COLUMBIA, MO 65203
- Location Phone
- (574) 546-1900
- Location Fax
- (574) 546-1999
- Mailing Address
- PO BOX 11522 FORT WAYNE, IN 46859
- Mailing Phone
- (574) 546-1900
- Mailing Fax
- (574) 546-1999
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- Yes
- Enumeration Date
- 02-06-2026
- Last Update Date
- 03-31-2026
- Code Navigator
An internist like Guidestar Eldercare Corp - Ks 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
Secondary Locations
- 1500 W Foxwood Dr
Raymore, MO 64083
(574) 546-1900 - 10000 Wornall Rd
Kansas City, MO 64114
(574) 546-1900
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
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
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 | 101YM0800X | Behavioral Health & Social Service Providers | Counselor | |
| 2 | 103TC0700X | Behavioral Health & Social Service Providers | Psychologist | |
| 3 | 1041C0700X | Behavioral Health & Social Service Providers | Social Worker | |
| 4 | 2084N0400X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | |
| 5 | 2084P0800X | Allopathic & Osteopathic Physicians | Psychiatry & Neurology | |
| 6 | 363L00000X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner | |
| 7 | 363LA2200X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner | |
| 8 | 363LF0000X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner | |
| 9 | 363LG0600X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner | |
| 10 | 363LP0808X | Physician Assistants & Advanced Practice Nursing Providers | Nurse Practitioner |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1275484099, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 4 providers are registered at the same or a nearby location.
COLUMBIA, MO 65203
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1275484099, enumerated as an "organization" on February 06, 2026.
The provider is located at 303 N STADIUM BLVD FL 2 COLUMBIA, MO 65203 and the phone number is (574) 546-1900.
Internal Medicine with taxonomy code 207R00000X.
