Clinical Genetics (M.D.) Physician
NUCC 207SG0201X · Medical Genetics
839 CMS NPPES-registered providers across 50 states · 284th of 690 specialties by headcount.
Where this specialty sits in the corpus
Clinical Genetics (M.D.) Physician ranks 284th of 690 NUCC specialties by CMS NPPES headcount (0.01% of all registered NPIs), densest in California; per resident District of Columbia leads.
- 839
- NPPES providers in specialty
- 284th
- of 690 specialties
- 527
- state-share HHI
- 18.4%
- Part D prescriber share
District of Columbia is densest per capita (12.5× the national rate; Delaware 3.5×); 68.2% of the Medical Genetics category.
Taxonomy fingerprint
Clinical Genetics (M.D.) Physician (NUCC 207SG0201X; 18.4% Part D prescribers (154 of 839); avg 275 Part D claims/prescriber (387th of 572); Open Payments avg $13K/physician (27th of 551; 223 paid, $2.8M total); state-share HHI 527; next-larger headcount neighbor Pediatric Emergency Medicine (Emergency Medicine) Physician (+17); next-smaller Hospice and Palliative Medicine (Family Medicine) Physician (-9)).
Next larger: Pediatric Emergency Medicine (Emergency Medicine) Physician (856) Next smaller: Hospice and Palliative Medicine (Family Medicine) Physician (830)
Population-adjusted state index
Each multiple is this specialty's providers-per-resident in a state divided by the national rate (Census Vintage population estimates). Raw headcount favors large states; this ranking surfaces denser markets.
Over-indexed vs national rate
- District of Columbia 12.5× · 3.1/100k
- Delaware 3.5× · 0.9/100k
- Vermont 3.1× · 0.8/100k
- Massachusetts 2.6× · 0.7/100k
- Maryland 2× · 0.5/100k
Under-indexed vs national rate
- Virginia 0.42× · 0.1/100k
- Kentucky 0.45× · 0.1/100k
- Illinois 0.45× · 0.1/100k
- New Jersey 0.52× · 0.1/100k
- Wisconsin 0.55× · 0.1/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 127 |
| 2 | New York | 56 |
| 3 | Texas | 56 |
| 4 | Florida | 47 |
| 5 | Massachusetts | 46 |
| 6 | Ohio | 43 |
| 7 | Pennsylvania | 43 |
| 8 | Washington | 32 |
| 9 | Maryland | 30 |
| 10 | Minnesota | 25 |
| 11 | Michigan | 24 |
| 12 | District of Columbia | 21 |
| 13 | South Carolina | 18 |
| 14 | Tennessee | 18 |
| 15 | Alabama | 15 |
Top Cities for Clinical Genetics (M.D.) Physician
| # | City | Providers |
|---|---|---|
| 1 | BostonMassachusetts | 38 |
| 2 | HoustonTexas | 29 |
| 3 | New YorkNew York | 27 |
| 4 | PhiladelphiaPennsylvania | 27 |
| 5 | Los AngelesCalifornia | 25 |
| 6 | SeattleWashington | 25 |
| 7 | WashingtonDistrict of Columbia | 21 |
| 8 | BethesdaMaryland | 18 |
| 9 | ClevelandOhio | 17 |
| 10 | BirminghamAlabama | 12 |
| 11 | San FranciscoCalifornia | 12 |
| 12 | AuroraColorado | 12 |
Sample Clinical Genetics (M.D.) Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Darius Adams, M.D.Morristown, NJ |
| 2 | Christopher Griffith, M.D.Fort Myers, FL |
| 3 | Pamela Reitnauer, MDGreensboro, NC |
| 4 | Dennis Bartholomew, MDColumbus, OH |
| 5 | Patricia Gordon, MDHershey, PA |
| 6 | Sally Rosengren, MDWest Hartford, CT |
| 7 | Kwame Anyane-Yeboa, M.D.New York, NY |
| 8 | Cheryl Reid, M.D.Moorestown, NJ |
| 9 | Georgia Wiesner, MDNashville, TN |
| 10 | Linda Jeng, M.D.Baltimore, MD |
| 11 | Robert Stratton, M.DCorpus Christi, TX |
| 12 | Gail Herman, MDColumbus, OH |
| 13 | Melissa Fries, MDWashington, DC |
| 14 | Chahira KozmaWashington, DC |
| 15 | Andrew Melnyk, M.D.Philadelphia, PA |
| 16 | Virginia Johnson, MDSioux Falls, SD |
| 17 | Simon Kupchik, MDBrooklyn, NY |
| 18 | Sara Copeland, MDDaly City, CA |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy - same Medical Genetics category.
Compare Clinical Genetics (M.D.) Physician vs Clinical Cytogenetics Physician →
Frequently Asked Questions
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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.