Constantine T Nicholas, MD
Constantine T Nicholas is a Orthopaedic Surgery Physician provider (Orthopaedic Surgery) practicing in Martinez, CA, registered in the NPPES registry with NPI 1295790228 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1295790228 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Constantine T Nicholas |
| Credential | MD |
| Sex | Male |
| Practice address | 2500 ALHAMBRA AVE, Martinez, CA, 94553 |
| Phone | 9253705200 |
| Enumeration date | 2006-04-20 |
| Last updated in NPPES | 2013-04-13 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207X00000X | Orthopaedic Surgery Physician | Secondary | 4301032764 | MI |
| 207X00000X | Orthopaedic Surgery Physician | Primary | C33836 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 102059860 | Medicaid | MI | — |
Copy-ready billing details
Provider: Constantine Nicholas, MD NPI: 1295790228 Taxonomy: 207X00000X (Orthopaedic Surgery Physician) Address: 2500 ALHAMBRA AVE, Martinez, CA, 94553
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1154318830 | Larry Kean | Individual | Psychiatry Physician | Martinez, CA |
| 1376532747 | Mehrdad Mansouri | Individual | Hospitalist Physician | Martinez, CA |
| 1497730907 | Howard Shaw | Individual | Family Nurse Practitioner | Martinez, CA |
| 1093793127 | Cynthia Hellman-Wylie | Individual | Family Nurse Practitioner | Martinez, CA |
| 1124093208 | Kristine Girard | Individual | Psychiatry Physician | Martinez, CA |
| 1881663714 | Kevin Beadles | Individual | Ophthalmology Physician | Martinez, CA |
| 1619925286 | Laura Keels | Individual | Family Nurse Practitioner | Martinez, CA |
| 1073551719 | Andrea Sandler | Individual | Family Medicine Physician | Martinez, CA |
Verify this record
Cross-check NPI 1295790228 against the authoritative CMS record: view Constantine T Nicholas 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
What is the NPI number for Constantine Nicholas?
Where does Constantine Nicholas practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-04-13.