DR. JOHN MICHAEL HAYES PH.D.
NPI 1023224326
Psychologist - Family in Columbia, MD
NPI Status: Active since May 15, 2007
Contact Information
10632 LITTLE PATUXENT PKWY
SUITE 308-A
COLUMBIA, MD
ZIP 21044
Phone: (410) 730-0100
- Individual
- Male
- Psychologist
- Family
About JOHN HAYES
This page provides the complete NPI Profile along with additional information for John Hayes, a provider established in Columbia, Maryland with a medical specialization in Psychologist, focusing in family . The healthcare provider is registered in the NPI registry with number 1023224326 assigned on May 2007. The practitioner's primary taxonomy code is 103TF0000X with license number 1142 (MD). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1023224326
- Provider Name
- DR. JOHN MICHAEL HAYES PH.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 10632 LITTLE PATUXENT PKWY SUITE 308-A COLUMBIA, MD 21044
- Location Phone
- (410) 730-0100
- Mailing Address
- 4404 KESWICK RD BALTIMORE, MD 21210
- Mailing Phone
- (410) 662-9121
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-15-2007
- Last Update Date
- 09-11-2025
- Code Navigator
Location Map
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
Psychologist Family
- Taxonomy Code
- 103TF0000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 1142
- License State
- MD
- Taxonomy Description
- A psychologist whose specialty is founded on principles of systems theory with the interpersonal system of the family the focus of assessment, intervention and research.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 103T00000X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
| 2 | 103TC0700X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
| 3 | 103TC1900X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
| 4 | 103TC2200X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
| 5 | 103TP0814X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
| 6 | 103TP2701X | Behavioral Health & Social Service Providers | Psychologist | 1142 (MD) |
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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 1023224326, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 54 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
COLUMBIA, MD 21044
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023224326, enumerated as an "individual" on May 15, 2007.
The provider is located at 10632 LITTLE PATUXENT PKWY SUITE 308-A COLUMBIA, MD 21044 and the phone number is (410) 730-0100.
Psychologist with taxonomy code 103TF0000X and a focus in Family.
