JOHN DALIVA, DO INC
NPI 1710556667
Internal Medicine - Addiction Medicine in Montclair, CA
NPI Status: Active since June 23, 2021
Contact Information
9620 FREMONT AVE
MONTCLAIR, CA
ZIP 91763
Phone: (909) 621-4751
Fax: (909) 801-7008
- Organization
- Internal Medicine
- Addiction Medicine
About JOHN DALIVA, DO INC
This page provides the complete NPI Profile along with additional information for John Daliva, Do Inc, an internist established in Montclair, California operating as a Internal Medicine, focusing in addiction medicine . The healthcare provider is registered in the NPI registry with number 1710556667 assigned on June 2021. The practitioner's primary taxonomy code is 207RA0401X. The provider is registered as an organization and their NPI record was last updated March 2026. John Daliva, Do Inc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's
- NPI
- 1710556667
- Provider Legal Name
- JOHN DALIVA, DO INC
- Other Organization Name
- Other Name Type
- (6)
- Entity Type
- Organization
- Location Address
- 9620 FREMONT AVE MONTCLAIR, CA 91763
- Location Phone
- (909) 621-4751
- Location Fax
- (909) 801-7008
- Mailing Address
- PO BOX 2698 CHINO HILLS, CA 91709
- Mailing Phone
- (909) 970-5700
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 06-23-2021
- Last Update Date
- 03-31-2026
- Code Navigator
An internist like John Daliva, Do Inc 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
- 867 E 11th St
Upland, CA 91786
(909) 985-1981
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 Addiction Medicine
- Taxonomy Code
- 207RA0401X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- An internist doctor of osteopathy that specializes in the treatment of addiction disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Added Qualifications in the field of Addiction Medicine.
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.
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 |
|---|---|---|---|
| 20A17362 | OTHER (01) | CA | MEDICAL LICENSE |
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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 1710556667, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).
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 53 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 2 providers are registered at the same or a nearby location.
MONTCLAIR, CA 91763
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1710556667, enumerated as an "organization" on June 23, 2021.
The provider is located at 9620 FREMONT AVE MONTCLAIR, CA 91763 and the phone number is (909) 621-4751.
Internal Medicine with taxonomy code 207RA0401X and a focus in Addiction Medicine.
The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.
