ANNELIES PFEIFFER WOOD CRNP
NPI 1134412265
Nurse Practitioner - Women's Health in Philadelphia, PA

NPI Status: Active since May 23, 2011

Contact Information

800 SPRUCE ST
1 PINE WEST
PHILADELPHIA, PA
ZIP 19107
Phone: (215) 829-2345

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  • Individual
  • Female
  • Nurse Practitioner
  • Women's Health

About ANNELIES WOOD

This page provides the complete NPI Profile along with additional information for Annelies Wood, a provider established in Philadelphia, Pennsylvania with a medical specialization in Nurse Practitioner, focusing in women's health . The healthcare provider is registered in the NPI registry with number 1134412265 assigned on May 2011. The practitioner's primary taxonomy code is 363LW0102X with license number SP011107 (PA). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1134412265
Provider Name
ANNELIES PFEIFFER WOOD CRNP
Gender
Female
Entity Type
Individual
Location Address
800 SPRUCE ST 1 PINE WEST PHILADELPHIA, PA 19107
Location Phone
(215) 829-2345
Mailing Address
800 SPRUCE ST PHILADELPHIA, PA 19107
Mailing Phone
(215) 829-2345
Is Sole Proprietor?
No
Enumeration Date
05-23-2011
Last Update Date
02-05-2026
Code Navigator

A nurse practitioner (NP) like Annelies Wood 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 Women's Health

Taxonomy Code
363LW0102X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
SP011107
License State
PA

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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 1134412265, 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 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 6 + 4 + 8 + 1 + 4 + 2 + 1 + 2 + 24 = 55

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

The next multiple of ten after 55 is 60. The difference is the calculated check digit.

60 - 55 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1134412265.

Other Providers at the Same Location


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

Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Clinic/Center (Radiology)
800 SPRUCE ST, SECOND FLOOR, WIDENER BUILDING
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Rehabilitation Unit
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Nurse Anesthetist, Certified Registered
800 SPRUCE ST
PHILADELPHIA, PA 19107
Obstetrics & Gynecology (Reproductive Endocrinology)
800 SPRUCE ST, ONE PINE EAST
PHILADELPHIA, PA 19107
Orthopaedic Surgery
800 SPRUCE ST
PHILADELPHIA, PA 19107
Radiology (Diagnostic Radiology)
800 SPRUCE ST, PAH 2 SHEIDT
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILADELPHIA, PA 19107
Anesthesiology
800 SPRUCE ST
PHILA, PA 19107

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1134412265, enumerated as an "individual" on May 23, 2011.

The provider is located at 800 SPRUCE ST 1 PINE WEST PHILADELPHIA, PA 19107 and the phone number is (215) 829-2345.

Nurse Practitioner with taxonomy code 363LW0102X and a focus in Women's Health.