JOHN KOWNACKI MD A MEDICAL CORPORATION
NPI 1922031467
Ophthalmology in La Mesa, CA

NPI Status: Active since July 08, 2006

Contact Information

8881 FLETCHER PKWY
#395
LA MESA, CA
ZIP 91942
Phone: (619) 440-2022
Fax: (619) 466-2466

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  • Organization
  • Ophthalmology

About JOHN KOWNACKI MD A MEDICAL CORPORATION

This page provides the complete NPI Profile along with additional information for John Kownacki Md A Medical Corporation, a provider established in La Mesa, California operating as a Ophthalmology. The healthcare provider is registered in the NPI registry with number 1922031467 assigned on July 2006. The practitioner's primary taxonomy code is 207W00000X with license number G84672 (CA). 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 provider's former legal business name is John Kownacki Md A Medical Corporation. The authorized official of this NPI record is John J Kownacki Md (Md Owner)

NPI
1922031467
Provider Legal Name
JOHN KOWNACKI MD A MEDICAL CORPORATION
Other Organization Name
JOHN KOWNACKI MD A MEDICAL CORPORATION
Other Name Type
Former Legal Business Name (4)
Entity Type
Organization
Location Address
8881 FLETCHER PKWY #395 LA MESA, CA 91942
Location Phone
(619) 440-2022
Location Fax
(619) 466-2466
Mailing Address
8881 FLETCHER PKWY #395 LA MESA, CA 91942
Mailing Phone
(619) 440-2022
Mailing Fax
(619) 466-2466
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-08-2006
Last Update Date
07-22-2011
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Ophthalmologists like John Kownacki Md A Medical Corporation specialize in diagnosing and treating eye conditions. They may perform surgeries to correct vision issues or prevent vision loss due to diseases like glaucoma. Additionally, they can provide eyeglasses, prescribe contact lenses, and offer other vision-related services.

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

Ophthalmology

Taxonomy Code
207W00000X
Type
Allopathic & Osteopathic Physicians
License No.
G84672
License State
CA
Taxonomy Description
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

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

JOHN J KOWNACKI MD

Authorized Official Title
MD OWNER
Authorized Official Phone
(619) 466-2022

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
G84672MEDICARE ID-TYPE UNSPECIFIED (04)CA 
F41686MEDICARE UPIN (02) 
00G846720MEDICAID (05)CA 

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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 1922031467, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
2
Doubled → 4
Pos 4
2
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
7
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 1 → 2 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 4 + 2 + 0 + 3 + 2 + 4 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1922031467.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Specialist
8881 FLETCHER PKWY, SUITE 250
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, SUITE 325
LA MESA, CA 91942
Clinic/Center (Ambulatory Surgical)
8881 FLETCHER PKWY, SUITE 100
LA MESA, CA 91942
Physician Assistant
8881 FLETCHER PKWY, 360
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, SUITE 325
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, SUITE 325
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, 220
LA MESA, CA 91942
Nurse Practitioner
8881 FLETCHER PKWY, SUITE 200
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, #350
LA MESA, CA 91942
Dentist (General Practice)
8881 FLETCHER PKWY, SUITE 265
LA MESA, CA 91942
Optometrist
8881 FLETCHER PKWY, SUITE 395
LA MESA, CA 91942
Physical Therapist
8881 FLETCHER PKWY, SUITE 385
LA MESA, CA 91942
Clinic/Center (Ambulatory Surgical)
8881 FLETCHER PKWY, STE 241
LA MESA, CA 91942
Physical Therapy Assistant
8881 FLETCHER PKWY, SUITE #280
LA MESA, CA 91942
Ophthalmology
8881 FLETCHER PKWY, SUITE 104
LA MESA, CA 91942
Anesthesiology
8881 FLETCHER PKWY
LA MESA, CA 91942
Physical Therapist
8881 FLETCHER PKWY
LA MESA, CA 91942
Specialist
8881 FLETCHER PKWY, SUITE 241
LA MESA, CA 91942
Hearing Aid Equipment
8881 FLETCHER PKWY, 103
LA MESA, CA 91942
Physical Therapist
8881 FLETCHER PKWY, #280
LA MESA, CA 91942

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1922031467, enumerated as an "organization" on July 08, 2006.

The provider is located at 8881 FLETCHER PKWY #395 LA MESA, CA 91942 and the phone number is (619) 440-2022.

Ophthalmology with taxonomy code 207W00000X.

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