Mr. Lorry James Larson, MD
Mr. Lorry James Larson is a General Practice Physician provider (General Practice) practicing in San Francisco, CA, registered in the NPPES registry with NPI 1144381583 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1144381583 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mr. Lorry James Larson |
| Credential | MD |
| Sex | Male |
| Practice address | 49 DRUMM ST, San Francisco, CA, 94111 |
| Phone | 4159828380 |
| Fax | 4159822810 |
| Enumeration date | 2006-12-12 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | A24981 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Lorry Larson, MD NPI: 1144381583 Taxonomy: 208D00000X (General Practice Physician) Address: 49 DRUMM ST, San Francisco, CA, 94111
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1770637837 | Maritime Drumm Medical Mgmt | Organization | Legal Medicine | San Francisco, CA |
| 1356561658 | Physician Access | Organization | Occupational Medicine Clinic/Center | San Francisco, CA |
| 1942502406 | Maritime Drumm Medical Mgmt | Organization | Preferred Provider Organization | San Francisco, CA |
Verify this record
Cross-check NPI 1144381583 against the authoritative CMS record: view Mr. Lorry James Larson 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 2007-07-08.