Golden State Dermatology Associates, Inc.
NPI 1700860871 · Dermatology Physician · Walnut Creek, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Golden State Dermatology Associates, Inc. is a Dermatology Physician organization in Walnut Creek, CA (NPI 1700860871).
Provider details
- NPI number
- 1700860871
- Entity type
- Organization
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jeffrey Bortz, Owner/Medical Director(925) 932-7704
Specialties & taxonomies
Allopathic & Osteopathic Physicians
- MOHS-Micrographic Surgery Physician207ND0101X
Allopathic & Osteopathic Physicians
- Procedural Dermatology Physician207NS0135X
Allopathic & Osteopathic Physicians
- Dermatopathology Physician207ND0900X
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
14 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (13)
- 1200 Central Blvd Ste DBrentwood, CA 94513-2227Phone: (925) 308-9510
- 5640 N Fresno St Ste 110Fresno, CA 93710-6098Phone: (559) 266-9906
- 1058 Murrieta BlvdLivermore, CA 94550-4111Phone: (925) 277-1300
- 410 E Yosemite Ave Ste CMerced, CA 95340-8220Phone: (209) 722-7801
- 1324 Nelson AveModesto, CA 95350-5374Phone: (209) 524-9481
- 400 Taylor Blvd Ste 301Pleasant Hill, CA 94523-2160Phone: (925) 687-8882Fax: (925) 318-9657
- 5575 W Las Positas Blvd Ste 260Pleasanton, CA 94588-5803Phone: (925) 847-3020
- 280 Baldwin AveSan Mateo, CA 94401-3915Phone: (650) 727-6008
- 5201 Norris Canyon RdSan Ramon, CA 94583-5411Phone: (925) 277-1300
Registry dates
- Enumerated
- 2005-12-02
- Last updated
- 2026-03-27
- Certified
- 2026-03-27
Frequently asked questions
- What is Golden State Dermatology Associates, Inc.'s NPI number?
- Golden State Dermatology Associates, Inc.'s National Provider Identifier (NPI) is 1700860871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Golden State Dermatology Associates, Inc.?
- Golden State Dermatology Associates, Inc. is classified in the NPPES registry as Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Golden State Dermatology Associates, Inc. located?
- Golden State Dermatology Associates, Inc.'s practice location on file with NPPES is 355 Lennon Ln Ste 255, Walnut Creek, CA 94598-2496.
- What is Golden State Dermatology Associates, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Golden State Dermatology Associates, Inc. is (925) 932-7704.
- Does Golden State Dermatology Associates, Inc. accept Medicare?
- Golden State Dermatology Associates, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Golden State Dermatology Associates, Inc.?
- The authorized official listed on Golden State Dermatology Associates, Inc.'s NPPES record is Jeffrey Bortz, Owner/Medical Director. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Golden State Dermatology Associates, Inc.'s NPI active?
- Yes — Golden State Dermatology Associates, Inc.'s NPI (1700860871) is active in the NPPES registry as of the last update on 2026-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.