Jack Gregory, M.D.
Jack Gregory is a General Practice Physician provider (General Practice) practicing in Porterville, CA, registered in the NPPES registry with NPI 1528169208 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1528169208 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Jack Gregory |
| Credential | M.D. |
| Sex | Male |
| Practice address | 590 W PUTNAM AVE, SUITE 2A, Porterville, CA, 93257 |
| Phone | 5597813700 |
| Fax | 5597814131 |
| Enumeration date | 2006-09-26 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | Primary | G7754 | 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 |
|---|---|---|---|
| 00G7754 | Medicaid | CA | — |
Copy-ready billing details
Provider: Jack Gregory, M.D. NPI: 1528169208 Taxonomy: 208D00000X (General Practice Physician) Address: 590 W PUTNAM AVE, SUITE 2A, Porterville, CA, 93257
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1154308963 | John Nguyen | Individual | Obstetrics & Gynecology Physician | Porterville, CA |
| 1528016987 | Sequoia Family Medical Center, Inc | Organization | Rural Health Clinic/Center | Porterville, CA |
| 1851345318 | Srinivas Sampath | Individual | Pediatrics Physician | Porterville, CA |
| 1497709315 | Jasvir Sidhu | Individual | Family Medicine Physician | Porterville, CA |
| 1326085572 | Vera Meier-Bennett | Individual | Pediatric Adolescent Medicine Physician | Porterville, CA |
| 1881704013 | Brilor, Inc. | Organization | Community/Retail Pharmacy | Porterville, CA |
| 1588764526 | Suneel Wadhwani | Individual | Family Medicine Physician | Porterville, CA |
| 1649363334 | Mark Reader | Individual | Otolaryngology Physician | Porterville, CA |
Verify this record
Cross-check NPI 1528169208 against the authoritative CMS record: view Jack Gregory 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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Is NPI 1528169208 active?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.