MRS. MARTHA SUSAN GREISHAW ARNP
NPI 1366490476
Nurse Practitioner - Family in Gainesville, FL

NPI Status: Active since May 04, 2006

Contact Information

1600 SW ARCHER RD
GAINESVILLE, FL
ZIP 32610
Phone: (352) 392-1161

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  • Individual
  • Female
  • Nurse Practitioner
  • Family
  • Accepts Insurance

About MARTHA GREISHAW

This page provides the complete NPI Profile along with additional information for Martha Greishaw, a provider established in Gainesville, Florida with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1366490476 assigned on May 2006. The practitioner's primary taxonomy code is 363LF0000X with license number ARNP2874812 (FL). The provider is registered as an individual and her NPI record was last updated 16 years ago.

NPI
1366490476
Provider Name
MRS. MARTHA SUSAN GREISHAW ARNP
Gender
Female
Entity Type
Individual
Location Address
1600 SW ARCHER RD GAINESVILLE, FL 32610
Location Phone
(352) 392-1161
Mailing Address
PO BOX 918025 ORLANDO, FL 32891
Mailing Phone
(352) 392-1161
Is Sole Proprietor?
No
Enumeration Date
05-04-2006
Last Update Date
12-03-2010
Code Navigator

A nurse practitioner (NP) like Martha Greishaw is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
ARNP2874812
License State
FL

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)
1363LF0000XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Family

2874812 (FL)

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
E4665YMEDICARE PIN (08)FL 

Reviews for MRS. MARTHA SUSAN GREISHAW ARNP

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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 1366490476, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
3
Unchanged
Pos 3
6
Doubled → 12 → 1 + 2
Pos 4
6
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
0
Doubled → 0
Pos 8
4
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
6
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 6 → 12 → 3 4 → 8 0 → 0 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 8 + 9 + 0 + 4 + 1 + 4 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1366490476.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Physician Assistant
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Radiology (Vascular & Interventional Radiology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Radiology (Diagnostic Radiology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Surgery
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Radiology (Diagnostic Radiology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Nurse Practitioner (Pediatrics)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Internal Medicine (Medical Oncology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Nurse Anesthetist, Certified Registered
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Nurse Anesthetist, Certified Registered
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Pediatrics (Pediatric Pulmonology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Pediatrics
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Anesthesiology
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Anesthesiology
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Genetic Counselor, MS
1600 SW ARCHER RD, UF PEDIATRIC GENETICS
GAINESVILLE, FL 32610
Pathology (Anatomic Pathology & Clinical Pathology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
1600 SW ARCHER RD, SUITE 3341
GAINESVILLE, FL 32610
Pediatrics (Pediatric Endocrinology)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Nurse Practitioner (Family)
1600 SW ARCHER RD
GAINESVILLE, FL 32610
Nurse Practitioner (Family)
1600 SW ARCHER RD
GAINESVILLE, FL 32610

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366490476, enumerated as an "individual" on May 04, 2006.

The provider is located at 1600 SW ARCHER RD GAINESVILLE, FL 32610 and the phone number is (352) 392-1161.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.

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