WILLIAM J GRISAITIS MD PA
NPI 1831375435
Clinic/Center - Medical Specialty in Maitland, FL
NPI Status: Active since January 14, 2008
Contact Information
331 N MAITLAND AVE
#A-5
MAITLAND, FL
ZIP 32751
Phone: (407) 644-9030
Fax: (407) 644-9440
- Organization
- Clinic/Center
- Medical Specialty
- Accepts Insurance
About WILLIAM J GRISAITIS MD PA
This page provides the complete NPI Profile along with additional information for William J Grisaitis Md Pa, a provider established in Maitland, Florida operating as a Clinic/center, focusing in medical specialty . The healthcare provider is registered in the NPI registry with number 1831375435 assigned on January 2008. The practitioner's primary taxonomy code is 261QM2500X with license number ME35814 (FL). The provider is registered as an organization and their NPI record was last updated 16 years ago. The authorized official of this NPI record is William J Grisaitis Md (Owner)
- NPI
- 1831375435
- Provider Name
- WILLIAM J GRISAITIS MD PA
- Entity Type
- Organization
- Location Address
- 331 N MAITLAND AVE #A-5 MAITLAND, FL 32751
- Location Phone
- (407) 644-9030
- Location Fax
- (407) 644-9440
- Mailing Address
- 331 N MAITLAND AVE #A-5 MAITLAND, FL 32751
- Mailing Phone
- (407) 644-9030
- Mailing Fax
- (407) 644-9440
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 01-14-2008
- Last Update Date
- 08-13-2010
- Code Navigator
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
Clinic/Center Medical Specialty
- Taxonomy Code
- 261QM2500X
- Type
- Ambulatory Health Care Facilities
- License No.
- ME35814
- License State
- FL
- Taxonomy Description
- An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- AvMed Entrust Bronze 600 (2026) - HMO
- AvMed Entrust Bronze 650 (2026) - HMO
- AvMed Entrust Expanded Bronze Standard (2026) - HMO
- AvMed Entrust Gold 125 (2026) - HMO
- AvMed Entrust Gold 125 Dental+Vision (2026) - HMO
- AvMed Entrust Gold Standard (2026) - HMO
- AvMed Entrust Platinum 25 (2026) - HMO
- AvMed Entrust Platinum 25 Dental+Vision (2026) - HMO
- AvMed Entrust Platinum Standard (2026) - HMO
- AvMed Entrust Silver 350 (2026) - HMO
- AvMed Entrust Silver 350 Dental+Vision (2026) - HMO
- AvMed Entrust Silver 550 (2026) - HMO
- AvMed Entrust Silver 550 Dental+Vision (2026) - HMO
- AvMed Entrust Silver Standard (2026) - HMO
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.
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 |
|---|---|---|---|
| D57090 | MEDICARE UPIN (02) | FL |
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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 1831375435, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).
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 65 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 9 providers are registered at the same or a nearby location.
MAITLAND, FL 32751
MAITLAND, FL 32751
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1831375435, enumerated as an "organization" on January 14, 2008.
The provider is located at 331 N MAITLAND AVE #A-5 MAITLAND, FL 32751 and the phone number is (407) 644-9030.
Clinic/Center with taxonomy code 261QM2500X and a focus in Medical Specialty.
The provider might be accepting Accepts: AvMed, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
