JOHN ROBERT SIBILIA
NPI 1003605866
Nurse Practitioner - Critical Care Medicine in Portland, ME
NPI Status: Active since May 06, 2025
Contact Information
22 BRAMHALL ST
PORTLAND, ME
ZIP 04102
Phone: (207) 662-0111
- Individual
- Nurse Practitioner
- Critical Care Medicine
About JOHN SIBILIA
This page provides the complete NPI Profile along with additional information for John Sibilia, a provider established in Portland, Maine operating as a Nurse Practitioner, focusing in critical care medicine . The healthcare provider is registered in the NPI registry with number 1003605866 assigned on May 2025. The practitioner's primary taxonomy code is 363LC0200X with license number CNP251254 (ME). The provider is registered as an individual and their NPI record was last updated one year ago.
- NPI
- 1003605866
- Provider Name
- JOHN ROBERT SIBILIA
- Gender
- Entity Type
- Individual
- Location Address
- 22 BRAMHALL ST PORTLAND, ME 04102
- Location Phone
- (207) 662-0111
- Mailing Address
- 22 BRAMHALL ST PORTLAND, ME 04102
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-06-2025
- Last Update Date
- 05-06-2025
- Code Navigator
A nurse practitioner (NP) like John Sibilia 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 Critical Care Medicine
- Taxonomy Code
- 363LC0200X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- CNP251254
- License State
- ME
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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 1003605866, 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 44. The final step is to find the difference between that total and the next multiple of ten (50 - 44 = 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.
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 44 is 50. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
PORTLAND, ME 04102
PORTLAND, ME 04102
PORTLAND, ME 04102
PORTLAND, ME 04102
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1003605866, enumerated as an "individual" on May 06, 2025.
The provider is located at 22 BRAMHALL ST PORTLAND, ME 04102 and the phone number is (207) 662-0111.
Nurse Practitioner with taxonomy code 363LC0200X and a focus in Critical Care Medicine.
