DR. DAVID FREDERICK VELKOFF M.D.
NPI 1891086369
General Practice in Irvine, CA

NPI Status: Active since May 02, 2011

Contact Information

4330 BARRANCA PKWY STE 130
IRVINE, CA
ZIP 92604
Phone: (800) 700-4233
Fax: (949) 653-2714

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  • Individual
  • Male
  • General Practice
  • Opted-Out Medicare

About DAVID VELKOFF

This page provides the complete NPI Profile along with additional information for David Velkoff, a primary care provider established in Irvine, California with a medical specialization in General Practice. The healthcare provider is registered in the NPI registry with number 1891086369 assigned on May 2011. The practitioner's primary taxonomy code is 208D00000X with license number G34929 (CA). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI
1891086369
Provider Name
DR. DAVID FREDERICK VELKOFF M.D.
Gender
Male
Entity Type
Individual
Location Address
4330 BARRANCA PKWY STE 130 IRVINE, CA 92604
Location Phone
(800) 700-4233
Location Fax
(949) 653-2714
Mailing Address
4330 BARRANCA PKWY STE 130 IRVINE, CA 92604
Mailing Phone
(800) 700-4233
Mailing Fax
(949) 653-2714
Is Sole Proprietor?
Yes
Enumeration Date
05-02-2011
Last Update Date
11-15-2021
Code Navigator

A primary care provider (PCP) like David Velkoff sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. David Velkoff opted out of Medicare effective on 11-16-2021 until 11-16-2025. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

Location Map

Secondary Locations

  • 11111 W Olympic Blvd Ste 210
    Los Angeles, CA 90064
    (310) 208-2020

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

General Practice

Taxonomy Code
208D00000X
Type
Allopathic & Osteopathic Physicians
License No.
G34929
License State
CA
Taxonomy Description
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Medicare Participation & PECOS Enrollment Status

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 11-16-2021

  • Opt-Out End Date: 11-16-2025

  • Eligible to Order and Refer? No

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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 1891086369, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
9
Doubled → 18 → 1 + 8
Pos 4
1
Unchanged
Pos 5
0
Doubled → 0
Pos 6
8
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
9
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 9 → 18 → 9 0 → 0 6 → 12 → 3 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 8 + 1 + 0 + 8 + 1 + 2 + 3 + 1 + 2 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1891086369.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891086369, enumerated as an "individual" on May 02, 2011.

The provider is located at 4330 BARRANCA PKWY STE 130 IRVINE, CA 92604 and the phone number is (800) 700-4233.

General Practice with taxonomy code 208D00000X.