Histology Specialist/Technologist providers in the U.S.
49 NPPES records list histology specialist/technologist as their primary taxonomy; California and District of Columbia have the most per resident. A registry record is not proof of an active practice.
What taxonomy code 246QH0600X means
246QH0600X is the National Uniform Claim Committee code for Specialist/Technologist, Pathology, Histology, in the grouping Technologists, Technicians & Other Technical Service Providers. 49 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 246QH0600X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Modesto has the most, 16
Source: CMS NPPES, primary taxonomy 246QH0600X by practice city, file of Aug 9, 2026.
All 17 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 1 | 0.0 |
| Arkansas | 1 | 0.0 |
| California | 20 | 0.1 |
| Colorado | 1 | 0.0 |
| District of Columbia | 1 | 0.1 |
| Florida | 2 | 0.0 |
| Georgia | 3 | 0.0 |
| Illinois | 1 | 0.0 |
| Michigan | 1 | 0.0 |
| State | Records | Per 100,000 |
|---|---|---|
| Missouri | 1 | 0.0 |
| New York | 1 | 0.0 |
| North Dakota | 1 | 0.1 |
| Ohio | 1 | 0.0 |
| Pennsylvania | 3 | 0.0 |
| Texas | 9 | 0.0 |
| Utah | 1 | 0.0 |
| Wisconsin | 1 | 0.0 |
In federal data
- NUCC code246QH0600X · Specialist/Technologist, Pathology
- Size rank575th of 688 specialties by records (0% of all)
- In its family5th of 12 Specialist/Technologist, Pathology codes, 3.6% of the family
- Concentration2 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of histology specialist/technologist records
- Janice CroskeyBirmingham, AL1922203553
- Ashley Waymack, HTL (ASCP), BSLittle Rock, AR1184333965
- Jon Dunham, HTLoma Linda, CA1427106749
- Seema Bhutani, H.T.Irvine, CA1366593519
- William Lewis, HTL(ASCP)San Francisco, CA1669352076
- Steven Avolicino, HTHayward, CA1356511513
- Ricky EasleyModesto, CA1235299355
- Nicole MaganaModesto, CA1316008097
- Quoc PhamModesto, CA1346571593
- John ListModesto, CA1730473794
- Ashley SchulkeModesto, CA1669743159
- Amanda SorrellModesto, CA1386050177
Registry order, not a ranking. Search by name to find one provider.
Common questions
Why is Histology Specialist/Technologist a thin NUCC code in NPPES?
Only 49 NPIs list Histology Specialist/Technologist as primary taxonomy across 17 states (peak California, 20). That is 575th of 688 NUCC codes by headcount. Thin codes are still searchable by NPI; do not treat the low count as a quality signal.
Where can I still find a Histology Specialist/Technologist?
Histology Specialist/Technologist providers are listed in 17 states; Modesto leads by raw city count. By national headcount this code sits just above Oral Medicine Dentistry and just below Neuroscience Clinical Nurse Specialist. Browse by state or search by name.
What does NUCC code 246QH0600X mean?
Histology Specialist/Technologist is NUCC taxonomy 246QH0600X in the Specialist/Technologist, Pathology group. Counts are self-designated primary taxonomy at NPI enrollment, not board certification.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.