PRIMARY DIAGNOSTICS MEDICAL GROUP OF CALIFORNIA P.C.
NPI 1639815863
Internal Medicine in San Francisco, CA
NPI Status: Active since May 10, 2022
Contact Information
99 OSGOOD PL STE 500
SAN FRANCISCO, CA
ZIP 94133
Phone: (415) 746-9639
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Organization
- Internal Medicine
- CLIA Number: 05D2280156
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 04-12-2027
About PRIMARY DIAGNOSTICS MEDICAL GROUP OF CALIFORNIA P.C.
This page provides the complete NPI Profile along with additional information for Primary Diagnostics Medical Group Of California P.c., an internist established in San Francisco, California operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1639815863 assigned on May 2022. The practitioner's primary taxonomy code is 207R00000X. The provider is registered as an organization and their NPI record was last updated August 2025. The organization operates as a single speciality business group with one or more individual providers who practice the same area of specialization. The provider's
- NPI
- 1639815863
- Provider Legal Name
- PRIMARY DIAGNOSTICS MEDICAL GROUP OF CALIFORNIA P.C.
- Other Organization Name
- Other Name Type
- (6)
- Entity Type
- Organization
- Location Address
- 99 OSGOOD PL STE 500 SAN FRANCISCO, CA 94133
- Location Phone
- (415) 746-9639
- Mailing Address
- 595 PACIFIC AVE FL 4 SAN FRANCISCO, CA 94133
- Mailing Phone
- (855) 970-3223
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 05-10-2022
- Last Update Date
- 08-25-2025
- Code Navigator
An internist like Primary Diagnostics Medical Group Of California P.c. 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
- 595 Pacific Ave Fl 4
San Francisco, CA 94133
(855) 970-3223
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
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
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 | 207RP1001X | Allopathic & Osteopathic Physicians | Internal Medicine | |
| 2 | 333600000X | Suppliers | Pharmacy | |
| 3 | 3336C0003X | Suppliers | Pharmacy |
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
CLIA Information
The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:
- CLIA Number
- 05D2280156
- Facility Type
- Physician Office
- Certificate Effective Date
- April 13, 2025
- Certificate Expiration Date
- April 12, 2027
- Laboratory Director
- RAFID FADUL
- Certificate Type
- Certificate of Waiver
- Certificate Type Description
- This CLIA certificate is issued to Primary Diagnostics Medical Group Of California P.c. to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 6 | 3 | 9 | 8 | 1 | 5 | 8 | 6 | 3 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 6 | 9 | 16 | 1 | 10 | 8 | 12 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 6 + 9 + 1 + 6 + 1 + 1 + 0 + 8 + 1 + 2 + 24 = 67 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 67 = 3 | 3 | ||||||||
The NPI number 1639815863 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 3 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1093453292 | PRIMARY DIAGNOSTICS MEDICAL GROUP OF NEW JERSEY P.C. Organization | Internal Medicine | 99 OSGOOD PL STE 500 SAN FRANCISCO, CA 94133 (415) 746-9639 |
| 1265170476 | PRIMARY DIAGNOSTICS MEDICAL GROUP OF KANSAS P.A. Organization | Internal Medicine | 99 OSGOOD PL STE 500 SAN FRANCISCO, CA 94133 (415) 746-9639 |
| 1457099640 | PRIMARY DIAGNOSTICS MEDICAL GROUP P.A. Organization | Internal Medicine | 99 OSGOOD PL STE 500 SAN FRANCISCO, CA 94133 (415) 746-9639 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639815863, enumerated in the NPI registry as an "organization" on May 10, 2022
The provider is located at 99 Osgood Pl Ste 500 San Francisco, Ca 94133 and the phone number is (415) 746-9639
This medical organization specializes in Internal Medicine with taxonomy code 207R00000X
The provider's CLIA number is 05D2280156 for a "physician office" facility with a CLIA Certificate of Waiver. This CLIA certificate is issued to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria..
This NPI record was last updated on May 10, 2022. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
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