Hematology & Oncology Physician
NUCC 207RH0003X · Internal Medicine
11,530 CMS NPPES-registered providers across 54 states · 83rd of 690 specialties by headcount.
Where this specialty sits in the corpus
Hematology & Oncology Physician ranks 83rd of 690 NUCC specialties by CMS NPPES headcount (0.16% of all registered NPIs), densest in California; per resident District of Columbia leads.
- 11,530
- NPPES providers in specialty
- 83rd
- of 690 specialties
- 444
- state-share HHI
- 73.1%
- Part D prescriber share
District of Columbia is densest per capita (2.8× the national rate; Rhode Island 1.7×); 3.8% of the Internal Medicine category.
Taxonomy fingerprint
Hematology & Oncology Physician (NUCC 207RH0003X; 73.1% Part D prescribers (8,428 of 11,530); avg 885 Part D claims/prescriber (180th of 572); Open Payments avg $8K/physician (58th of 551; 6,678 paid, $51.0M total); state-share HHI 444; next-larger headcount neighbor Day Training/Habilitation Specialist (+314); next-smaller Advanced Practice Midwife (-331)).
Next larger: Day Training/Habilitation Specialist (11,844) Next smaller: Advanced Practice Midwife (11,199)
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 2.8× · 9.6/100k
- Rhode Island 1.7× · 5.9/100k
- Massachusetts 1.6× · 5.5/100k
- New York 1.5× · 5.1/100k
- Washington 1.5× · 5.1/100k
Under-indexed vs national rate
- Idaho 0.51× · 1.7/100k
- Mississippi 0.54× · 1.8/100k
- Wyoming 0.55× · 1.9/100k
- New Mexico 0.56× · 1.9/100k
- South Dakota 0.61× · 2.1/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 1,306 |
| 2 | New York | 999 |
| 3 | Florida | 703 |
| 4 | Pennsylvania | 657 |
| 5 | Texas | 637 |
| 6 | Illinois | 508 |
| 7 | Ohio | 421 |
| 8 | Washington | 400 |
| 9 | Massachusetts | 385 |
| 10 | North Carolina | 360 |
| 11 | Georgia | 344 |
| 12 | New Jersey | 333 |
| 13 | Virginia | 290 |
| 14 | Michigan | 281 |
| 15 | Maryland | 273 |
Top Cities for Hematology & Oncology Physician
| # | City | Providers |
|---|---|---|
| 1 | New YorkNew York | 303 |
| 2 | SeattleWashington | 227 |
| 3 | HoustonTexas | 190 |
| 4 | BostonMassachusetts | 187 |
| 5 | ChicagoIllinois | 168 |
| 6 | PhiladelphiaPennsylvania | 155 |
| 7 | Los AngelesCalifornia | 138 |
| 8 | ClevelandOhio | 108 |
| 9 | MiamiFlorida | 107 |
| 10 | AtlantaGeorgia | 99 |
| 11 | JacksonvilleFlorida | 98 |
| 12 | TampaFlorida | 87 |
Sample Hematology & Oncology Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Kirby Smith, MDMemphis, TN |
| 2 | Matthew Brouns, M.D.Vancouver, WA |
| 3 | Edward Chang, M.D.Tigard, OR |
| 4 | Thomas Bensinger, M.D.Greenbelt, MD |
| 5 | Mark Dewolfe, M.D.Kansas City, MO |
| 6 | Jesse Lee, MDGreenville, NC |
| 7 | Kevin Shannon, M.D.Findlay, OH |
| 8 | Arvind Shah, M.D.Columbus, OH |
| 9 | Jonathan Treisman, M. D.Franklin, WI |
| 10 | Robert Veith, M.D.New Orleans, LA |
| 11 | Aleksandar Jankov, MDMemphis, TN |
| 12 | Jose Acostamadiedo, MDPlattsburgh, NY |
| 13 | Bassam Abi-Rached, M.D.Alexandria, LA |
| 14 | Jonathan Marsh, MDPalmer, MA |
| 15 | Douglas Clark, MDAlbuquerque, NM |
| 16 | Heather White, MDGreenville, NC |
| 17 | Parmjeet Banghar, M.D.Peoria, AZ |
| 18 | John Hanson, M.D.Milwaukee, WI |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy - same Internal Medicine category.
Compare Hematology & Oncology Physician vs Internal Medicine Physician →
Frequently Asked Questions
Where does the large Hematology & Oncology Physician headcount concentrate?
How large is Hematology & Oncology Physician's Open Payments footprint?
How heavy is Hematology & Oncology Physician Part D prescribing at scale?
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.