DR. ROBERT ALAN PFOST OD
NPI 1790810364
Optometrist - Corneal and Contact Management in Oakland, CA

NPI Status: Active since February 22, 2007

Contact Information

3205 GRAND AVE
OAKLAND, CA
ZIP 94610
Phone: (510) 444-0666
Fax: (510) 463-2222

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  • Individual
  • Male
  • Optometrist
  • Corneal and Contact Management

About ROBERT PFOST

This page provides the complete NPI Profile along with additional information for Robert Pfost, a provider established in Oakland, California with a medical specialization in Optometrist, focusing in corneal and contact management . The healthcare provider is registered in the NPI registry with number 1790810364 assigned on February 2007. The practitioner's primary taxonomy code is 152WC0802X with license number 5316T (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1790810364
Provider Name
DR. ROBERT ALAN PFOST OD
Other Name
MR. ROBERT A PFOST OD
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
3205 GRAND AVE OAKLAND, CA 94610
Location Phone
(510) 444-0666
Location Fax
(510) 463-2222
Mailing Address
3205 GRAND AVE OAKLAND, CA 94610
Mailing Phone
(510) 444-0666
Mailing Fax
(510) 463-2222
Is Sole Proprietor?
Yes
Enumeration Date
02-22-2007
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

Optometrist Corneal and Contact Management

Taxonomy Code
152WC0802X
Type
Eye and Vision Services Providers
License No.
5316T
License State
CA
Taxonomy Description
The professional activities performed by an Optometrist related to the fitting of contact lenses to an eye, ongoing evaluation of the cornea's ability to sustain successful contact lens wear, and treatment of any external eye or corneal condition which can affect contact lens wear.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
SD0053160MEDICARE ID-TYPE UNSPECIFIED (04)CA 
SD0053160MEDICAID (05)CA 

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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 1790810364, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
1
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
4
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 8 → 16 → 7 0 → 0 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 6 + 1 + 0 + 3 + 1 + 2 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1790810364.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Optometrist
3205 GRAND AVE
OAKLAND, CA 94610
Optometrist
3205 GRAND AVE
OAKLAND, CA 94610

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790810364, enumerated as an "individual" on February 22, 2007.

The provider is located at 3205 GRAND AVE OAKLAND, CA 94610 and the phone number is (510) 444-0666.

Optometrist with taxonomy code 152WC0802X and a focus in Corneal and Contact Management.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.