Clinical Biochemical Genetics Physician
NUCC 207SG0202X · Medical Genetics
83 CMS NPPES-registered providers across 26 states · 550th of 690 specialties by headcount.
Where this specialty sits in the corpus
Clinical Biochemical Genetics Physician ranks 550th of 690 NUCC specialties by CMS NPPES headcount (0% of all registered NPIs), densest in California; per resident Massachusetts leads.
- 83
- NPPES providers in specialty
- 550th
- of 690 specialties
- 623
- state-share HHI
- 25.3%
- Part D prescriber share
Massachusetts is densest per capita (4.7× the national rate; Maryland 4×); 6.7% of the Medical Genetics category.
Taxonomy fingerprint
Clinical Biochemical Genetics Physician (NUCC 207SG0202X; 25.3% Part D prescribers (21 of 83); avg 44 Part D claims/prescriber (542nd of 572); Open Payments avg $10K/physician (41st of 551; 35 paid, $351K total); state-share HHI 623; next-larger headcount neighbor Pathology Technician (+1); next-smaller Feeding, Eating & Swallowing Occupational Therapy Assistant (-2)).
Next larger: Pathology Technician (84) Next smaller: Feeding, Eating & Swallowing Occupational Therapy Assistant (81)
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 12 |
| 2 | Massachusetts | 8 |
| 3 | Maryland | 6 |
| 4 | New York | 5 |
| 5 | Washington | 5 |
| 6 | Florida | 4 |
| 7 | Michigan | 4 |
| 8 | Ohio | 4 |
Sample Clinical Biochemical Genetics Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Kim McBride, MDColumbus, OH |
| 2 | Harvey Levy, MDBoston, MA |
| 3 | Alejandro Iglesias, MDNew York, NY |
| 4 | Eric Hanson, M.D.Las Vegas, NV |
| 5 | David Hyman, M.D.Manhasset, NY |
| 6 | Rebecca Mardach, MDSan Diego, CA |
| 7 | Philip James, MDMadison, WI |
| 8 | John Merritt, M.D.Seattle, WA |
| 9 | Randall HeidenreichAlbuquerque, NM |
| 10 | Vivian Shih, MDBoston, MA |
| 11 | Joel Charrow, MDChicago, IL |
| 12 | Deborah Marsden, MBBSBoston, MA |
Frequently Asked Questions
Why is Clinical Biochemical Genetics Physician a thin NUCC code in NPPES?
Do the few Clinical Biochemical Genetics 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.