Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

JENNA SPEARS MD
NPI 1023503141
Internal Medicine - Cardiovascular Disease in Avondale, AZ

Active since July 01, 2018
10815 W MCDOWELL RD STE 202, AVONDALE, AZ 85392(623) 433-0202 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 13, 2026, Jul 9, 2026 (2 updates tracked since 2026).

  • Individual
  • Female
  • Internal Medicine
  • Cardiovascular Disease

About JENNA SPEARS

This page provides the complete NPI Profile along with additional information for Jenna Spears, an internist established in Avondale, Arizona with a medical specialization in Internal Medicine, focusing in cardiovascular disease . The healthcare provider is registered in the NPI registry with number 1023503141 assigned on July 2018. The practitioner's primary taxonomy code is 207RC0000X with license number 78951 (AZ). The provider is registered as an individual and her NPI record was last updated July 2026.

NPI
1023503141
Provider Name
JENNA SPEARS MD
Gender
Female
Entity Type
Individual
Location Address
10815 W MCDOWELL RD STE 202 AVONDALE, AZ 85392
Location Phone
(623) 433-0202
Mailing Address
3815 E BELL RD STE 4500 PHOENIX, AZ 85032
Mailing Phone
(571) 982-6636
Is Sole Proprietor?
No
Enumeration Date
07-01-2018
Last Update Date
07-13-2026
Code Navigator

An internist like Jenna Spears is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, etc.

Location Map

Secondary Locations

  • 4951 S White Mountain Rd Bldg A
    Show Low, AZ 85901
    (928) 537-6700

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

Internal Medicine Cardiovascular Disease

Taxonomy Code
207RC0000X
Type
Allopathic & Osteopathic Physicians
License No.
78951
License State
AZ
Taxonomy Description
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

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)
1207R00000XAllopathic & Osteopathic Physicians

Internal Medicine

78951 (AZ)

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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 1023503141, we treat the final digit (1) 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 49. The final step is to find the difference between that total and the next multiple of ten (50 - 49 = 1).

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
0
Unchanged
Pos 3
2
Doubled → 4
Pos 4
3
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
0
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
Check
1
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 2 → 4 5 → 10 → 1 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 4 + 3 + 1 + 0 + 0 + 6 + 1 + 8 + 24 = 49

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

The next multiple of ten after 49 is 50. The difference is the calculated check digit.

50 - 49 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1023503141.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Internal Medicine (Cardiovascular Disease)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Physician Assistant
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Nurse Practitioner (Adult Health)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Physician Assistant (Medical)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Nurse Practitioner (Family)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Nurse Practitioner (Family)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Nurse Practitioner
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Nurse Practitioner
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Internal Medicine (Interventional Cardiology)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Internal Medicine (Interventional Cardiology)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392
Internal Medicine (Interventional Cardiology)
10815 W MCDOWELL RD STE 202
AVONDALE, AZ 85392

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1023503141, enumerated as an "individual" on July 01, 2018.

The provider is located at 10815 W MCDOWELL RD STE 202 AVONDALE, AZ 85392 and the phone number is (623) 433-0202.

Internal Medicine with taxonomy code 207RC0000X and a focus in Cardiovascular Disease.