Chemical Pathology Physician
NUCC 207ZP0104X · Pathology
40 CMS NPPES-registered providers across 20 states · 596th of 690 specialties by headcount.
Where this specialty sits in the corpus
Chemical Pathology Physician ranks 596th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California; per resident California leads.
- 40
- NPPES providers in specialty
- 596th
- of 690 specialties
- 800
- state-share HHI
- 2.5%
- Part D prescriber share
California is densest per capita (1.5× the national rate); 0.2% of the Pathology category.
Taxonomy fingerprint
Chemical Pathology Physician (NUCC 207ZP0104X; 2.5% Part D prescribers (1 of 40); avg 20 Part D claims/prescriber (559th of 572); Open Payments avg $3K/physician (138th of 551; 5 paid, $17K total); state-share HHI 800; next-larger headcount neighbor Thermography Chiropractor (+1); next-smaller Oral Medicine Dentistry (-1)).
Next larger: Thermography Chiropractor (41) Next smaller: Oral Medicine Dentistry (39)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 7 |
| 2 | Michigan | 4 |
| 3 | New York | 4 |
| 4 | Massachusetts | 3 |
| 5 | Ohio | 3 |
| 6 | Pennsylvania | 3 |
| 7 | Maryland | 2 |
| 8 | North Carolina | 2 |
Sample Chemical Pathology Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Frederick Smith, M.D.Chicago, IL |
| 2 | Susan Fuhrman, MDColumbus, OH |
| 3 | Yvonne Posey, MDRoyal Oak, MI |
| 4 | David Alter, MDGrand Rapids, MI |
| 5 | Kirk Wojno, MDRoyal Oak, MI |
| 6 | Robin HelmuthIndianapolis, IN |
| 7 | Peter Howanitz, MDBrooklyn, NY |
| 8 | Charles Schirmer, M.D.Pinehurst, NC |
| 9 | Dan Iancu, MDBuffalo, NY |
| 10 | Gary Horowitz, M.D.Boston, MA |
| 11 | Leona Ayers, MDColumbus, OH |
| 12 | Kurt Lundquist, M.D.San Luis Obispo, CA |
Frequently Asked Questions
Why is Chemical Pathology Physician a thin NUCC code in NPPES?
Do the few Chemical Pathology Physician NPIs in Open Payments look unusual?
How much Part D prescribing does this specialty do?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.