TERRY CHEN D.O.
NPI 1003229352
Family Medicine in San Luis Obispo, CA

NPI Status: Active since June 04, 2014

Contact Information

1 GRAND AVE BLDG 27
SAN LUIS OBISPO, CA
ZIP 93407
Phone: (805) 756-1211
Fax: (805) 765-5298

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  • Individual
  • Female
  • Family Medicine

About TERRY CHEN

This page provides the complete NPI Profile along with additional information for Terry Chen, a primary care provider established in San Luis Obispo, California with a medical specialization in Family Medicine. The healthcare provider is registered in the NPI registry with number 1003229352 assigned on June 2014. The practitioner's primary taxonomy code is 207Q00000X with license number 20A14335 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1003229352
Provider Name
TERRY CHEN D.O.
Gender
Female
Entity Type
Individual
Location Address
1 GRAND AVE BLDG 27 SAN LUIS OBISPO, CA 93407
Location Phone
(805) 756-1211
Location Fax
(805) 765-5298
Mailing Address
1 GRAND AVE BLDG 27 SAN LUIS OBISPO, CA 93407
Mailing Phone
(805) 756-1211
Mailing Fax
(805) 765-5298
Is Sole Proprietor?
No
Enumeration Date
06-04-2014
Last Update Date
03-24-2026
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A primary care provider (PCP) like Terry Chen 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 .

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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
License No.
20A14335
License State
CA
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.

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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 1003229352, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

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
0
Doubled → 0
Pos 4
3
Unchanged
Pos 5
2
Doubled → 4
Pos 6
2
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
2
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 2 → 4 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 4 + 2 + 1 + 8 + 3 + 1 + 0 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1003229352.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Pharmacist
1 GRAND AVE BLDG 27
SAN LUIS OBISPO, CA 93407
Pharmacy (Clinic Pharmacy)
1 GRAND AVE BLDG 27, HEALTH CENTER
SAN LUIS OBISPO, CA 93407
Physician Assistant
1 GRAND AVE BLDG 27
SAN LUIS OBISPO, CA 93407
Nurse Practitioner (Family)
1 GRAND AVE BLDG 27
SAN LUIS OBISPO, CA 93407

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1003229352, enumerated as an "individual" on June 04, 2014.

The provider is located at 1 GRAND AVE BLDG 27 SAN LUIS OBISPO, CA 93407 and the phone number is (805) 756-1211.

Family Medicine with taxonomy code 207Q00000X.