Dr. James Joseph Sievers, D.C.
Dr. James Joseph Sievers is a Chiropractor provider (Chiropractor) practicing in Pleasanton, CA, registered in the NPPES registry with NPI 1801010236 since 2007. The credential DC stands for Doctor of Chiropractic. Practices at Mark David Levine MD Nursing Services PC (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1801010236 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. James Joseph Sievers |
| Credential | D.C. |
| Sex | Male |
| Practice address | Pleasanton, CA, 94588 |
| Phone | 9254622633 |
| Fax | 9254623329 |
| Enumeration date | 2007-04-13 |
| Last updated in NPPES | 2012-11-16 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | 20792 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: James Sievers, D.C. NPI: 1801010236 Taxonomy: 111N00000X (Chiropractor) Address: Pleasanton, CA, 94588
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1528098860 | Fredric Morgan | Individual | General Practice Physician | Pleasanton, CA |
| 1437372679 | Ulyss Bidkaram | Individual | Chiropractor | Pleasanton, CA |
| 1306005509 | Deborah Knabenshuh | Individual | Marriage & Family Therapist | Pleasanton, CA |
| 1386956894 | George Papageorge | Individual | Marriage & Family Therapist | Pleasanton, CA |
| 1982955035 | Lewis Jones | Individual | Clinical Psychologist | Pleasanton, CA |
| 1790022523 | Russell Armstrong | Individual | Hearing Instrument Specialist | Pleasanton, CA |
| 1992186514 | Jessica Martins Blaquera | Individual | Clinical Psychologist | Pleasanton, CA |
| 1639540396 | Mark David Levine MD Nursing Services PC | Organization | Psychiatric/Mental Health Clinical Nurse Specialist | Pleasanton, CA |
Verify this record
Cross-check NPI 1801010236 against the authoritative CMS record: view Dr. James Joseph Sievers on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-11-16.