DONALD THOMAS HAY M.D.
NPI 1740288836
Urology in Concord, CA

NPI Status: Active since July 12, 2005

Contact Information

2222 EAST ST
STE 250
CONCORD, CA
ZIP 94520
Phone: (925) 689-6211
Fax: (925) 689-3857

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  • Individual
  • Male
  • Urology

About DONALD HAY

This page provides the complete NPI Profile along with additional information for Donald Hay, a provider established in Concord, California with a medical specialization in Urology. The healthcare provider is registered in the NPI registry with number 1740288836 assigned on July 2005. The practitioner's primary taxonomy code is 208800000X with license number A18121 (CA). The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1740288836
Provider Name
DONALD THOMAS HAY M.D.
Gender
Male
Entity Type
Individual
Location Address
2222 EAST ST STE 250 CONCORD, CA 94520
Location Phone
(925) 689-6211
Location Fax
(925) 689-3857
Mailing Address
2222 EAST ST STE 250 CONCORD, CA 94520
Mailing Phone
(925) 689-6211
Mailing Fax
(925) 689-3857
Is Sole Proprietor?
Yes
Enumeration Date
07-12-2005
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

Urology

Taxonomy Code
208800000X
Type
Allopathic & Osteopathic Physicians
License No.
A18121
License State
CA
Taxonomy Description
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures.

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
00A181210MEDICARE ID-TYPE UNSPECIFIED (04) 
GR0067920MEDICAID (05)CA 
A21191MEDICARE UPIN (02) 

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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 1740288836, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 8 + 0 + 4 + 8 + 1 + 6 + 8 + 6 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1740288836.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine (Interventional Cardiology)
2222 EAST ST, SUITE 260
CONCORD, CA 94520
Ophthalmology
2222 EAST ST, STE 365
CONCORD, CA 94520
Dentist (General Practice)
2222 EAST ST
CONCORD, CA 94520
Dentist (Endodontics)
2222 EAST ST, 350
CONCORD, CA 94520
Dentist (Endodontics)
2222 EAST ST, 350
CONCORD, CA 94520
Dentist (Oral and Maxillofacial Surgery)
2222 EAST ST, SUITE #355
CONCORD, CA 94520
Dietitian, Registered
2222 EAST ST, SUITE 305
CONCORD, CA 94520
Dentist (General Practice)
2222 EAST ST, #315
CONCORD, CA 94520
Dentist
2222 EAST ST, SUITE 270
CONCORD, CA 94520
Clinic/Center (Ambulatory Surgical)
2222 EAST ST, SUITE 200
CONCORD, CA 94520
Surgery (Plastic and Reconstructive Surgery)
2222 EAST ST, #310
CONCORD, CA 94520
Specialist
2222 EAST ST, STE 305
CONCORD, CA 94520
Urology
2222 EAST ST, STE 250
CONCORD, CA 94520
Ophthalmology
2222 EAST ST, STE 365
CONCORD, CA 94520
Dentist (Endodontics)
2222 EAST ST, 350
CONCORD, CA 94520
Urology
2222 EAST ST, STE 240
CONCORD, CA 94520
Urology
2222 EAST ST, STE 250
CONCORD, CA 94520
Internal Medicine
2222 EAST ST, SUITE 305
CONCORD, CA 94520
Anesthesiology
2222 EAST ST
CONCORD, CA 94520

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1740288836, enumerated as an "individual" on July 12, 2005.

The provider is located at 2222 EAST ST STE 250 CONCORD, CA 94520 and the phone number is (925) 689-6211.

Urology with taxonomy code 208800000X.

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