CITRUS VALLEY MEDICAL ASSOCIATES, INC.
NPI 1306033709
Family Medicine in Norco, CA

NPI Status: Active since September 28, 2007

Contact Information

1901 TOWN AND COUNTRY DR
SUITE 104
NORCO, CA
ZIP 92860
Phone: (951) 737-8141
Fax: (951) 738-9954

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  • Organization
  • Family Medicine

About CITRUS VALLEY MEDICAL ASSOCIATES, INC.

This page provides the complete NPI Profile along with additional information for Citrus Valley Medical Associates, Inc., a primary care provider established in Norco, California operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1306033709 assigned on September 2007. The practitioner's primary taxonomy code is 207Q00000X. The provider is registered as an organization and their NPI record was last updated March 2026. Citrus Valley Medical Associates, Inc. operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's . The authorized official of this NPI record is Dr. Robert Guy Nelson Md (Medical Director)

NPI
1306033709
Provider Legal Name
CITRUS VALLEY MEDICAL ASSOCIATES, INC.
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1901 TOWN AND COUNTRY DR SUITE 104 NORCO, CA 92860
Location Phone
(951) 737-8141
Location Fax
(951) 738-9954
Mailing Address
2250 S MAIN ST STE 209 CORONA, CA 92882
Mailing Phone
(951) 737-8141
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-28-2007
Last Update Date
03-20-2026
Code Navigator

A primary care provider (PCP) like Citrus Valley Medical Associates, Inc. sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .

Location Map

Secondary Locations

  • 12523 Limonite Ave Ste 400
    Eastvale, CA 91752
    (951) 808-6298
  • 6900 Brockton Ave Ste 100
    Riverside, CA 92506
    (951) 808-6298
  • 2250 S Main St Ste 208
    Corona, CA 92882
    (951) 817-5000
  • 2250 S Main St Ste 104
    Corona, CA 92882
    (951) 737-1454
  • 2250 S Main St Ste 201
    Corona, CA 92882
    (951) 734-8461
  • 2250 S Main St Ste 107
    Corona, CA 92882
    (951) 737-8177
  • 308 W 6th St Ste 101
    Corona, CA 92882
    (951) 737-0910
  • 1820 Fullerton Ave Ste 115
    Corona, CA 92881
    (951) 808-6240
  • 2250 S Main St Ste 106
    Corona, CA 92882
    (951) 371-2703

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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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

 
2207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

 
3207RI0011XAllopathic & Osteopathic Physicians

Internal Medicine
Interventional Cardiology

 
4207U00000XAllopathic & Osteopathic Physicians

Nuclear Medicine

 
5208000000XAllopathic & Osteopathic Physicians

Pediatrics

 
62084N0400XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Neurology

 
7261QU0200XAmbulatory Health Care Facilities

Clinic/Center
Urgent Care

 

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. ROBERT GUY NELSON MD

Authorized Official Title
MEDICAL DIRECTOR
Authorized Official Phone
(951) 737-8141

Reviews for CITRUS VALLEY MEDICAL ASSOCIATES, INC.

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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 1306033709, we treat the final digit (9) 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 51. The final step is to find the difference between that total and the next multiple of ten (60 - 51 = 9).

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
3
Unchanged
Pos 3
0
Doubled → 0
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
0
Doubled → 0
Check
9
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 0 → 0 0 → 0 3 → 6 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 0 + 6 + 0 + 3 + 6 + 7 + 0 + 24 = 51

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

The next multiple of ten after 51 is 60. The difference is the calculated check digit.

60 - 51 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1306033709.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Family Medicine
1901 TOWN AND COUNTRY DR, STE. 104
NORCO, CA 92860
Internal Medicine
1901 TOWN AND COUNTRY DR, STE. 104
NORCO, CA 92860
Nurse Practitioner
1901 TOWN AND COUNTRY DR, SUITE 104
NORCO, CA 92860
Nurse Practitioner (Primary Care)
1901 TOWN AND COUNTRY DR, SUITE 104
NORCO, CA 92860
Family Medicine
1901 TOWN AND COUNTRY DR, STE. 104
NORCO, CA 92860
Physician Assistant (Medical)
1901 TOWN AND COUNTRY DR
NORCO, CA 92860

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1306033709, enumerated as an "organization" on September 28, 2007.

The provider is located at 1901 TOWN AND COUNTRY DR SUITE 104 NORCO, CA 92860 and the phone number is (951) 737-8141.

Family Medicine with taxonomy code 207Q00000X.