ROBERT SPRIFKE PT
NPI 1861611642
Physical Therapist - Orthopedic in Sonoma, CA

NPI Status: Active since April 24, 2007

Contact Information

18971 SONOMA HWY
SONOMA, CA
ZIP 95476
Phone: (707) 996-5810

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  • Individual
  • Male
  • Physical Therapist
  • Orthopedic

About ROBERT SPRIFKE

This page provides the complete NPI Profile along with additional information for Robert Sprifke, a provider established in Sonoma, California with a medical specialization in Physical Therapist, focusing in orthopedic . The healthcare provider is registered in the NPI registry with number 1861611642 assigned on April 2007. The practitioner's primary taxonomy code is 2251X0800X with license number 28873 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1861611642
Provider Name
ROBERT SPRIFKE PT
Gender
Male
Entity Type
Individual
Location Address
18971 SONOMA HWY SONOMA, CA 95476
Location Phone
(707) 996-5810
Mailing Address
4145 SHADOW LN APT 629 SANTA ROSA, CA 95405
Is Sole Proprietor?
Yes
Enumeration Date
04-24-2007
Last Update Date
07-08-2007
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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

Physical Therapist Orthopedic

Taxonomy Code
2251X0800X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
28873
License State
CA
Taxonomy Description
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.

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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 1861611642, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 2 + 1 + 2 + 6 + 8 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1861611642.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1861611642, enumerated as an "individual" on April 24, 2007.

The provider is located at 18971 SONOMA HWY SONOMA, CA 95476 and the phone number is (707) 996-5810.

Physical Therapist with taxonomy code 2251X0800X and a focus in Orthopedic.