Hematology (Pathology) Physician providers in the U.S.
496 NPPES records list hematology (pathology) physician as their primary taxonomy, about 0.1 per 100,000 residents; Minnesota and Utah have the most per resident. 12 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 207ZH0000X means
207ZH0000X is the National Uniform Claim Committee code for Pathology, Hematology, in the grouping Allopathic & Osteopathic Physicians. 496 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders.
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 207ZH0000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Houston has the most, 33
Source: CMS NPPES, primary taxonomy 207ZH0000X by practice city, file of Aug 9, 2026.
All 41 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 2 | 0.0 |
| Arizona | 2 | 0.0 |
| Arkansas | 5 | 0.2 |
| California | 65 | 0.2 |
| Colorado | 13 | 0.2 |
| Connecticut | 7 | 0.2 |
| District of Columbia | 3 | 0.4 |
| Florida | 32 | 0.1 |
| Georgia | 6 | 0.1 |
| Illinois | 20 | 0.2 |
| Indiana | 5 | 0.1 |
| Iowa | 4 | 0.1 |
| Kansas | 2 | 0.1 |
| Kentucky | 3 | 0.1 |
| Louisiana | 2 | 0.0 |
| Maine | 1 | 0.1 |
| Maryland | 15 | 0.2 |
| Massachusetts | 16 | 0.2 |
| Michigan | 11 | 0.1 |
| Minnesota | 27 | 0.5 |
| Missouri | 11 | 0.2 |
| State | Records | Per 100,000 |
|---|---|---|
| Nebraska | 2 | 0.1 |
| Nevada | 3 | 0.1 |
| New Hampshire | 3 | 0.2 |
| New Jersey | 20 | 0.2 |
| New Mexico | 6 | 0.3 |
| New York | 51 | 0.3 |
| North Carolina | 11 | 0.1 |
| Ohio | 10 | 0.1 |
| Oklahoma | 1 | 0.0 |
| Oregon | 6 | 0.1 |
| Pennsylvania | 11 | 0.1 |
| Rhode Island | 2 | 0.2 |
| South Carolina | 1 | 0.0 |
| South Dakota | 1 | 0.1 |
| Tennessee | 10 | 0.1 |
| Texas | 51 | 0.2 |
| Utah | 16 | 0.5 |
| Virginia | 11 | 0.1 |
| Washington | 19 | 0.2 |
| Wisconsin | 9 | 0.2 |
In federal data
- NUCC code207ZH0000X · Pathology
- Size rank338th of 688 specialties by records (0.01% of all)
- In its family6th of 16 Pathology codes, 2% of the family
- Part D prescribers12 (2.4% of records)
- Part D claims220 a year per prescriber, on average (266th of 496)
- Industry payments72 physicians paid $327K in 2024, $5K each on average
- Concentration7 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 hematology (pathology) physician records
- Jason Wicker, M.D., PH.D.Birmingham, AL1548494362
- Jacek Polski, MDMobile, AL1760437727
- Ginell Post, MD, PHDLittle Rock, AR1376741801
- Susan Kemp, MDLittle Rock, AR1013101120
- Hany Meawad, MDLittle Rock, AR1568819001
- Venkata Rakesh Sethapati, MDLittle Rock, AR1871013862
- Sidra Zaheer, MDLittle Rock, AR1588217814
- Deborah Gelbspan, M.D., MBA, FCAPGlendale, AZ1851515605
- Ravina Thuraisingam, MDTucson, AZ1609404144
- Hongbin Zha, MDLos Angeles, CA1841361821
- Charles Koo, MDLos Angeles, CA1609947597
- Tse-Chang Cheng, MDLos Angeles, CA1851462733
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Hematology (Pathology) Physician's mid-pack national roster?
496 CMS-registered Hematology (Pathology) Physician providers sit across 41 states; California leads with 65. Rank 338th of 688 NUCC specialties by headcount.
How does Hematology (Pathology) Physician show up in Open Payments mid-pack?
CMS Open Payments 2024 lists 72 Hematology (Pathology) Physician physicians receiving $327K across 321 payments (average $5K; 95th of 470 specialties). Not a quality score.
How much Part D prescribing does this specialty do?
Among Hematology (Pathology) Physician NPIs, 12 appear in the Medicare Part D Prescriber PUF (average 220 claims and $799K drug cost per prescriber; 266th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
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.