CSI MEDICAL GROUP
NPI 1871909804
Dermatology - MOHS-Micrographic Surgery in San Pedro, CA
NPI Status: Active since July 10, 2014
Contact Information
1360 W 6TH ST STE 370
SAN PEDRO, CA
ZIP 90732
Phone: (310) 519-8890
Fax: (310) 519-9349
- Organization
- Dermatology
- MOHS-Micrographic Surgery
- CLIA Number: 05D2069633
- CLIA Cert. Type: Physician Office
- CLIA Exp. Date: 09-18-2026
About CSI MEDICAL GROUP
This page provides the complete NPI Profile along with additional information for Csi Medical Group, a provider established in San Pedro, California operating as a Dermatology, focusing in mohs-micrographic surgery . The healthcare provider is registered in the NPI registry with number 1871909804 assigned on July 2014. The practitioner's primary taxonomy code is 207ND0101X with license number G81771 (CA). The provider is registered as an organization and their NPI record was last updated one year ago. Csi Medical Group operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Eric S Schweiger Md (Owner)
- NPI
- 1871909804
- Provider Name
- CSI MEDICAL GROUP
- Entity Type
- Organization
- Location Address
- 1360 W 6TH ST STE 370 SAN PEDRO, CA 90732
- Location Phone
- (310) 519-8890
- Location Fax
- (310) 519-9349
- Mailing Address
- PO BOX 104527 PASADENA, CA 91189
- Mailing Phone
- (408) 369-5620
- Mailing Fax
- (310) 519-9349
- Is Sole Proprietor?
- No
- Is Organization Subpart?
- No
- Enumeration Date
- 07-10-2014
- Last Update Date
- 11-25-2025
- Code Navigator
Location Map
Secondary Locations
- 3838 California St Rm 610
San Francisco, CA 94118
(415) 387-8007 - 425 Haaland Dr Ste 204
Thousand Oaks, CA 91361
(805) 497-8080 - 800 Fairmount Ave Ste 220
Pasadena, CA 91105
(626) 585-9474 - 25815 Barton Rd Ste 101
Loma Linda, CA 92354
(909) 796-0224 - 380 W Central Ave Ste 320
Brea, CA 92821
(714) 870-7546 - 1518 Cypress Drive
Pebble Beach, CA 93953
(831) 333-9007 - 9675 Brighton Way Ste 350
Beverly Hills, CA 90210
(310) 275-4195 - 1620 E 2nd St Ste N
Beaumont, CA 92223
(951) 845-6500 - 11100 Warner Ave Ste 264
Fountain Valley, CA 92708
(714) 549-1770 - 24025 Park Sorrento Ste 405
Calabasas, CA 91302
(818) 222-2055 - 285 N El Camino Real Ste 117
Encinitas, CA 92024
(760) 633-1000 - 501 S Shore Ctr W # 103A
Alameda, CA 94501
(510) 227-7028 - 20400 Lake Chabot Rd Ste 202
Castro Valley, CA 94546
(510) 881-7822 - 360 San Miguel Dr Ste 309
Newport Beach, CA 92660
(949) 640-0434 - 36867 Cook St Ste 101
Palm Desert, CA 92211
(760) 341-1999 - 39210 State St Ste 218
Fremont, CA 94538
(510) 790-0477 - 9781 Blue Larkspur Ln Ste 100
Monterey, CA 93940
(831) 333-9008 - 13847 E 14th St Ste 218
San Leandro, CA 94578
(510) 483-0312 - 3311 Mission Dr
Santa Cruz, CA 95065
(831) 475-4315 - 45 Castro St Ste 332
San Francisco, CA 94114
(415) 861-2600 - 3562 Round Barn Cir Ste 320
Santa Rosa, CA 95403
(707) 578-1900 - 2438 N Ponderosa Dr Ste C105
Camarillo, CA 93010
(805) 388-2068 - 129 Fremont Ave
Los Altos, CA 94022
(650) 917-7711 - 18988 Cox Ave
Saratoga, CA 95070
(408) 253-4407 - 289 W Huntington Dr Ste 208
Arcadia, CA 91007
(626) 446-8809 - 1700 N Rose Ave Ste 450
Oxnard, CA 93030
(805) 201-2821 - 2420 Samaritan Dr
San Jose, CA 95124
(408) 369-5600 - 603 S Knickerbocker Dr
Sunnyvale, CA 94087
(408) 736-0441 - 204 Green Valley Rd
Freedom, CA 95019
(831) 728-2005 - 1800 Sullivan Ave Rm 403
Daly City, CA 94015
(650) 994-3238 - 1165 N Euclid St
Anaheim, CA 92801
(714) 991-9990 - 700 Garden View Ct Ste 100
Encinitas, CA 92024
(760) 633-1000 - 1934 Via Ctr # B
Vista, CA 92081
(760) 295-2299 - 909 Hyde St Ste 419
San Francisco, CA 94109
(415) 678-5887 - 136 N San Mateo Dr Fl 2
San Mateo, CA 94401
(650) 348-1242 - 3060 Broadway
Redwood City, CA 94062
(650) 361-1177 - 114 E Romie Ln
Salinas, CA 93901
(831) 757-1007 - 1030 Sir Francis Drake Blvd Ste 110
Kentfield, CA 94904
(415) 461-1036 - 1127 Wilshire Blvd Ste 600
Los Angeles, CA 90017
(213) 278-0021 - 1524 McHenry Ave Ste 470
Modesto, CA 95350
(209) 578-5072 - 1441 Avocado Ave Ste 409
Newport Beach, CA 92660
(949) 640-4501 - 9460 N Name Uno Ste 210
Gilroy, CA 95020
(408) 847-0888 - 4201 Torrance Blvd Ste 640
Torrance, CA 90503
(310) 543-4444
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
Dermatology MOHS-Micrographic Surgery
- Taxonomy Code
- 207ND0101X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- G81771
- License State
- CA
- Taxonomy Description
- The highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased tissue, preserving healthy tissue and minimizing the cosmetic impact of the surgery. Mohs surgeons who belong to the American College of Mohs Surgery (ACMS) have completed a minimum of one year of fellowship training at one of the ACMS-approved training centers in the U.S.
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 | 207N00000X | Allopathic & Osteopathic Physicians | Dermatology | G81771 (CA) |
| 2 | 207ND0900X | Allopathic & Osteopathic Physicians | Dermatology | G81771 (CA) |
| 3 | 207NI0002X | Allopathic & Osteopathic Physicians | Dermatology | G81771 (CA) |
| 4 | 207NP0225X | Allopathic & Osteopathic Physicians | Dermatology | G81771 (CA) |
| 5 | 207NS0135X | Allopathic & Osteopathic Physicians | Dermatology | G81771 (CA) |
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.
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
- 05D2069633
- Facility Type
- Physician Office
- Certificate Effective Date
- September 19, 2024
- Certificate Expiration Date
- September 18, 2026
- Laboratory Director
- ERNEST BLOOM MD
- Certificate Type
- Certificate for Provider-Performed Microscopy Procedures (PPMP)
- Certificate Type Description
- This CLIA certificate is issued to Csi Medical Group in which a physician, midlevel practitioner or dentist that performs specific microscopy procedures during the course of a patient's visit. A limited list of provider-performed microscopy procedures is included under this certificate type, which are categorized as moderate complexity testing.
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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 1871909804, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).
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 66 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1871909804, enumerated as an "organization" on July 10, 2014.
The provider is located at 1360 W 6TH ST STE 370 SAN PEDRO, CA 90732 and the phone number is (310) 519-8890.
Dermatology with taxonomy code 207ND0101X and a focus in MOHS-Micrographic Surgery.
