DR. IDALIA MASSA PH.D.
NPI 1275856890
Psychologist - Prescribing (Medical) in Arvada, CO
NPI Status: Active since March 10, 2010
Contact Information
PO BOX 745232
ARVADA, CO
ZIP 80006
Phone: (720) 244-0201
Fax: (720) 643-5885
- Individual
- Female
- Psychologist
- Prescribing (Medical)
About IDALIA MASSA
This page provides the complete NPI Profile along with additional information for Idalia Massa, a provider established in Arvada, Colorado with a medical specialization in Psychologist, focusing in prescribing (medical) . The healthcare provider is registered in the NPI registry with number 1275856890 assigned on March 2010. The practitioner's primary taxonomy code is 103TP0016X with license number 350666 (LA). The provider is registered as an individual and her NPI record was last updated February 2026. Idalia Massa operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.
- NPI
- 1275856890
- Provider Name
- DR. IDALIA MASSA PH.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- PO BOX 745232 ARVADA, CO 80006
- Location Phone
- (720) 244-0201
- Location Fax
- (720) 643-5885
- Mailing Address
- PO BOX 745232 ARVADA, CO 80006
- Mailing Phone
- (720) 244-0201
- Mailing Fax
- (720) 643-5885
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 03-10-2010
- Last Update Date
- 02-23-2026
- 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 Prescribing (Medical)
- Taxonomy Code
- 103TP0016X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 350666
- License State
- LA
- Taxonomy Description
- A licensed, doctoral-level psychologist authorized to prescribe and has undergone specialized education and training in preparation for prescriptive practice and has passed an examination accepted by the state board of psychology relevant to establishing competence for prescribing, and has received from the state board of psychology a current certificate granting prescriptive authority, which has not been revoked or suspended.
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 | 103TC2200X | Behavioral Health & Social Service Providers | Psychologist | |
| 2 | 103TR0400X | Behavioral Health & Social Service Providers | Psychologist | PSY.0003774 (CO) |
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1275856890, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1275856890, enumerated as an "individual" on March 10, 2010.
The provider is located at PO BOX 745232 ARVADA, CO 80006 and the phone number is (720) 244-0201.
Psychologist with taxonomy code 103TP0016X and a focus in Prescribing (Medical).
