Dr. Donald A Block, MD
Dr. Donald A Block is a Nephrology Physician provider (Internal Medicine) practicing in Berkeley, CA, registered in the NPPES registry with NPI 1205933934 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1205933934 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Donald A Block |
| Credential | MD |
| Sex | Male |
| Practice address | 2905 TELEGRAPH AVE, Berkeley, CA, 94705 |
| Phone | 5108410411 |
| Fax | 5108455030 |
| Enumeration date | 2006-09-16 |
| Last updated in NPPES | 2007-07-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician | Primary | G34174 | 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 |
|---|---|---|---|
| 00G341740 | Medicaid | CA | — |
| 390004843 | Other | CA | RAILROAD MEDICARE |
Copy-ready billing details
Provider: Donald Block, MD NPI: 1205933934 Taxonomy: 207RN0300X (Nephrology Physician) Address: 2905 TELEGRAPH AVE, Berkeley, CA, 94705
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1871699074 | East Bay Nephrology Medical Group, Inc. | Organization | Nephrology Physician | Berkeley, CA |
| 1902903578 | Monte Wu | Individual | Nephrology Physician | Berkeley, CA |
| 1548367113 | Claudia Iota-Herbei | Individual | Nephrology Physician | Berkeley, CA |
| 1184721821 | Robert Doud | Individual | Nephrology Physician | Berkeley, CA |
| 1609973353 | Malcolm Karlinsky | Individual | Nephrology Physician | Berkeley, CA |
| 1669579348 | Terina Miller | Individual | Nephrology Physician | Berkeley, CA |
| 1003913781 | Ellen Morrissey | Individual | Nephrology Physician | Berkeley, CA |
| 1437256120 | Swati Patel | Individual | Nephrology Physician | Berkeley, CA |
Verify this record
Cross-check NPI 1205933934 against the authoritative CMS record: view Dr. Donald A Block 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 2007-07-09.