MR. HARMAN SINGH DO
NPI 1639751134
Psychiatry & Neurology - Psychiatry in Walnut Creek, CA
NPI Status: Active since April 23, 2021
Contact Information
3100 OAK RD STE 270
WALNUT CREEK, CA
ZIP 94597
Phone: (925) 944-9711
- Individual
- Male
- Psychiatry & Neurology
- Psychiatry
About HARMAN SINGH
This page provides the complete NPI Profile along with additional information for Harman Singh, a provider established in Walnut Creek, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1639751134 assigned on April 2021. The practitioner's primary taxonomy code is 2084P0800X with license number 20A20869 (CA). The provider is registered as an individual and his NPI record was last updated June 2025.
- NPI
- 1639751134
- Provider Name
- MR. HARMAN SINGH DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3100 OAK RD STE 270 WALNUT CREEK, CA 94597
- Location Phone
- (925) 944-9711
- Mailing Address
- 3100 OAK RD STE 270 WALNUT CREEK, CA 94597
- Mailing Phone
- (925) 944-9711
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-23-2021
- Last Update Date
- 06-30-2025
- Code Navigator
A psychiatrist like Harman Singh are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.
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
Psychiatry & Neurology Psychiatry
- Taxonomy Code
- 2084P0800X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 20A20869
- License State
- CA
- Taxonomy Description
- A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
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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 | 7 | 5 | 1 | 1 | 3 | 4 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 6 | 9 | 14 | 5 | 2 | 1 | 6 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 6 + 9 + 1 + 4 + 5 + 2 + 1 + 6 + 24 = 66 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 70 - 66 = 4 | 4 | ||||||||
The NPI number 1639751134 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 17 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1134670342 | MARIA ZUBERI LMFT Individual | Marriage & Family Therapist | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1255445086 | RAGHUNATH BANSAL M.D. Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1659457075 | DR. UDAY KUMAR MUKHERJEE MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1295831014 | INDULATHA ARAMANDLA M.D. Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1285039651 | DR. GREGORY TAYLOR MICHAS D.O. Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1306338702 | DR. KIMBERLY ALECIA CURTIS MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1184831661 | MR. CRAIG P RUDNICK MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1689801912 | DR. JEAN GAUVIN M.D. Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1497709810 | DR. YOUSUF J ALLAWALA M.D. Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 357-8472 |
| 1104387083 | DR. KAREEM SEOUDY MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (713) 320-1181 |
| 1174152342 | MISS SHIVANGI MANIAR DO Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 357-8472 |
| 1114556487 | DR. LYMARIES VELEZ MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1194907584 | DR. VIKRANT MITTAL MBBS, MD, MHS Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1578908604 | ATEF SHAIKH D.O Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1972189686 | CRISTINE HYUN OH MD Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1861075517 | CHRISTINA BULLEIT DO Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-9711 |
| 1205465531 | MOUTUSHI KUNDU Individual | Psychiatry & Neurology (Psychiatry) | 3100 OAK RD STE 270 WALNUT CREEK, CA 94597 (925) 944-1733 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1639751134, enumerated in the NPI registry as an "individual" on April 23, 2021
The provider is located at 3100 Oak Rd Ste 270 Walnut Creek, Ca 94597 and the phone number is (925) 944-9711
The provider's speciality is Psychiatry & Neurology with taxonomy code 2084P0800X with a focus in Psychiatry
This NPI record was last updated on April 23, 2021. 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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