David Hewitt, MD
David Hewitt, MD is a Cytopathology Physician in Visalia, CA, registered under NPI 1124018148. This provider registers 9 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 316 S DUNWORTH ST, Visalia, CA 93292. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| A48679 | CA | Cytopathology Physician primary |
| A48679 | CA | Forensic Pathology Physician |
| A48679 | CA | Hematology (Pathology) Physician |
| A48679 | CA | Immunopathology Physician |
| A48679 | CA | Neuropathology Physician |
| A48679 | CA | Anatomic Pathology Physician |
| A48679 | CA | Anatomic Pathology & Clinical Pathology… |
| A48679 | CA | Pediatric Pathology Physician |
| A48679 | CA | Dermatopathology (Pathology) Physician |
This provider holds licence A48679 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Cytopathology covers
A cytopathologist is an anatomic pathologist trained in the diagnosis of human disease by means of the study of cells obtained from body secretions and fluids, by scraping, washing, or sponging the surface of a lesion, or by the aspiration of a tumor mass or body organ with a fine needle. A major aspect of a cytopathologist's practice is the interpretation of Papanicolaou-stained smears of cells from the female reproductive systems, the "Pap" test. However, the cytopathologist's expertise is applied to the diagnosis of cells from all systems and areas of the body. He/she is a consultant to all medical specialists. NUCC Health Care Provider Taxonomy, code 207ZC0500X
All registered taxonomy codes
This provider registers 9 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ZC0500X | Cytopathology Physician Cytopathology | A48679 | CA | primary |
| 207ZF0201X | Forensic Pathology Physician Forensic Pathology | A48679 | CA | |
| 207ZH0000X | Hematology (Pathology) Physician Hematology | A48679 | CA | |
| 207ZI0100X | Immunopathology Physician Immunopathology | A48679 | CA | |
| 207ZN0500X | Neuropathology Physician Neuropathology | A48679 | CA | |
| 207ZP0101X | Anatomic Pathology Physician Anatomic Pathology | A48679 | CA | |
| 207ZP0102X | Anatomic Pathology & Clinical Pathology Physician Anatomic Pathology & Clinical Pathology | A48679 | CA | |
| 207ZP0213X | Pediatric Pathology Physician Pediatric Pathology | A48679 | CA | |
| 207ZD0900X | Dermatopathology (Pathology) Physician Dermatopathology | A48679 | CA |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1124018148 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 21, 2005 |
| Last updated | Feb 6, 2008 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
316 S DUNWORTH ST Visalia, CA 93292 (550) 625-0601 Fax (559) 625-1315 |
| Other identifiers |
00A486790
(CA) CC9653 · RAILROAD MEDICARE GRP NUM (CA) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 2 | 4 | 0 | 1 | 8 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 4 | 4 | 0 | 1 | 7 | 1 | 8 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.