DARWIN DEROSANS
NPI 1205523784
Day Training/Habilitation Specialist in Concord, CA
NPI Status: Active since April 24, 2023
Contact Information
1420 WILLOW PASS RD # 200
CONCORD, CA
ZIP 94520
Phone: (415) 367-5691
- Individual
- Male
- Day Training/Habilitation Specialist
About DARWIN DEROSANS
This page provides the complete NPI Profile along with additional information for Darwin Derosans, a provider established in Concord, California with a medical specialization in Day Training/habilitation Specialist. The healthcare provider is registered in the NPI registry with number 1205523784 assigned on April 2023. The practitioner's primary taxonomy code is 373H00000X. The provider is registered as an individual and his NPI record was last updated July 2025.
- NPI
- 1205523784
- Provider Name
- DARWIN DEROSANS
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1420 WILLOW PASS RD # 200 CONCORD, CA 94520
- Location Phone
- (415) 367-5691
- Mailing Address
- 1420 WILLOW PASS RD STE 200 CONCORD, CA 94520
- Mailing Phone
- (925) 646-5480
- Is Sole Proprietor?
- No
- Enumeration Date
- 04-24-2023
- Last Update Date
- 07-11-2025
- Code Navigator
Location Map
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
Day Training/Habilitation Specialist
- Taxonomy Code
- 373H00000X
- Type
- Nursing Service Related Providers
- Taxonomy Description
- Individuals experienced or trained in working with developmentally disabled individuals who need assistance in acquiring and maintaining life skills that enable them to cope more effectively with the demands of independent living.
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 | 175T00000X | Other Service Providers | Peer Specialist |
Reviews for DARWIN DEROSANS
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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 | 2 | 0 | 5 | 5 | 2 | 3 | 7 | 8 | 4 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 2 | 0 | 5 | 10 | 2 | 6 | 7 | 16 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 2 + 0 + 5 + 1 + 0 + 2 + 6 + 7 + 1 + 6 + 24 = 56 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 56 = 4 | 4 | ||||||||
The NPI number 1205523784 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 20 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1265767578 | KAREN RAMIREZ Individual | Counselor (Mental Health) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1548473218 | SUNITA KUMARI MALL MD Individual | Psychiatry & Neurology (Psychiatry) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1265783864 | MANJU MATHEWS LCSW Individual | Social Worker (Clinical) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (845) 598-9730 |
| 1639732142 | PARTHA SARATHI CHOWDHURY Individual | Registered Nurse | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 521-5163 |
| 1427546969 | MRS. SARA CHRISTINE RALLS LMFT, ATR Individual | Marriage & Family Therapist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1417542747 | ALISA MARIE ANHOLD MA, AMFT Individual | Marriage & Family Therapist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 421-0230 |
| 1154960045 | HEATHER NICOLE PEEBLES LCSW Individual | Social Worker (Clinical) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 521-5151 |
| 1861424665 | DR. JOHN ROBERT ROSTKOWSKI M.D. Individual | Psychiatry & Neurology (Psychiatry) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 899-3883 |
| 1992252761 | MS. MARVILLA RUTH CAMPBELL LMFT Individual | Marriage & Family Therapist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1922521848 | TRACY L CHU-HARRIS Individual | Social Worker (Clinical) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 521-5100 |
| 1215501861 | HEATHER LYNN HANSEN ASW Individual | Social Worker (Clinical) | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 521-5153 |
| 1588331672 | ANTHONY DAVID SMALLS Individual | Community Health Worker | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1912781865 | MARTISHA MOUTON Individual | Social Worker | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (415) 613-7455 |
| 1972986149 | CYNTHIA AREVALO Individual | Social Worker | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1134937535 | AMALIA GRATTERI ACSW Individual | Social Worker | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 521-5155 |
| 1497115158 | CYNTHIA BRISENO Individual | Social Worker | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1225101249 | MS. YOSHIKO MURAI LMFT Individual | Marriage & Family Therapist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1770209652 | AUTUMN RENEE FURY Individual | Peer Specialist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1750702866 | ANGELA BRANDON Individual | Peer Specialist | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
| 1548876212 | ZULLIANA CABALLERO Individual | Rehabilitation Practitioner | 1420 WILLOW PASS RD # 200 CONCORD, CA 94520 (925) 646-5480 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1205523784, enumerated in the NPI registry as an "individual" on April 24, 2023
The provider is located at 1420 Willow Pass Rd # 200 Concord, Ca 94520 and the phone number is (415) 367-5691
The provider's speciality is Day Training/Habilitation Specialist with taxonomy code 373H00000X
This NPI record was last updated on April 24, 2023. 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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