JEFFREY BALFUS MD
NPI 1972827848
Anesthesiology - Pain Medicine in Monte Sereno, CA

NPI Status: Active since March 22, 2010

Contact Information

17539 EATON LN
MONTE SERENO, CA
ZIP 95030
Phone: (408) 406-2374

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  • Individual
  • Male
  • Anesthesiology
  • Pain Medicine

About JEFFREY BALFUS

This page provides the complete NPI Profile along with additional information for Jeffrey Balfus, a provider established in Monte Sereno, California with a medical specialization in Anesthesiology, focusing in pain medicine . The healthcare provider is registered in the NPI registry with number 1972827848 assigned on March 2010. The practitioner's primary taxonomy code is 207LP2900X with license number G21621 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.

NPI
1972827848
Provider Name
JEFFREY BALFUS MD
Gender
Male
Entity Type
Individual
Location Address
17539 EATON LN MONTE SERENO, CA 95030
Location Phone
(408) 406-2374
Mailing Address
17539 EATON LN MONTE SERENO, CA 95030
Mailing Phone
(408) 406-2374
Is Sole Proprietor?
Yes
Enumeration Date
03-22-2010
Last Update Date
10-17-2022
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Location Map

Secondary Locations

  • 17539 Eaton Ln
    Monte Sereno, CA 95030
    (408) 395-2012

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

Anesthesiology Pain Medicine

Taxonomy Code
207LP2900X
Type
Allopathic & Osteopathic Physicians
License No.
G21621
License State
CA
Taxonomy Description
An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

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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 1972827848, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
8
Unchanged
Pos 9
4
Doubled → 8
Check
8
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 7 → 14 → 5 8 → 16 → 7 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 1 + 6 + 2 + 1 + 4 + 8 + 8 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1972827848.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972827848, enumerated as an "individual" on March 22, 2010.

The provider is located at 17539 EATON LN MONTE SERENO, CA 95030 and the phone number is (408) 406-2374.

Anesthesiology with taxonomy code 207LP2900X and a focus in Pain Medicine.