Clinical Pathology/Laboratory Medicine Physician providers in the U.S.
1,347 NPPES records list clinical pathology/laboratory medicine physician as their primary taxonomy, about 0.4 per 100,000 residents; North Dakota and Wisconsin have the most per resident. 37 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 207ZP0105X means
207ZP0105X is the National Uniform Claim Committee code for Pathology, Clinical Pathology/Laboratory Medicine, in the grouping Allopathic & Osteopathic Physicians. 1,347 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
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 207ZP0105X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Rochester has the most, 58
Source: CMS NPPES, primary taxonomy 207ZP0105X by practice city, file of Aug 9, 2026.
All 49 states and D.C. with records, by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 19 | 0.4 |
| Alaska | 1 | 0.1 |
| Arizona | 40 | 0.5 |
| Arkansas | 6 | 0.2 |
| California | 131 | 0.3 |
| Colorado | 18 | 0.3 |
| Connecticut | 30 | 0.8 |
| Delaware | 5 | 0.5 |
| District of Columbia | 9 | 1.3 |
| Florida | 83 | 0.4 |
| Georgia | 21 | 0.2 |
| Hawaii | 3 | 0.2 |
| Illinois | 63 | 0.5 |
| Indiana | 40 | 0.6 |
| Iowa | 17 | 0.5 |
| Kansas | 12 | 0.4 |
| Kentucky | 4 | 0.1 |
| Louisiana | 7 | 0.2 |
| Maine | 3 | 0.2 |
| Maryland | 23 | 0.4 |
| Massachusetts | 52 | 0.7 |
| Michigan | 27 | 0.3 |
| Minnesota | 79 | 1.4 |
| Mississippi | 12 | 0.4 |
| Missouri | 28 | 0.5 |
| State | Records | Per 100,000 |
|---|---|---|
| Nebraska | 1 | 0.1 |
| Nevada | 5 | 0.2 |
| New Hampshire | 2 | 0.1 |
| New Jersey | 17 | 0.2 |
| New Mexico | 27 | 1.3 |
| New York | 102 | 0.5 |
| North Carolina | 35 | 0.3 |
| North Dakota | 18 | 2.3 |
| Ohio | 34 | 0.3 |
| Oklahoma | 4 | 0.1 |
| Oregon | 17 | 0.4 |
| Pennsylvania | 86 | 0.7 |
| Rhode Island | 5 | 0.5 |
| South Carolina | 4 | 0.1 |
| South Dakota | 12 | 1.3 |
| Tennessee | 8 | 0.1 |
| Texas | 65 | 0.2 |
| Utah | 5 | 0.1 |
| Vermont | 2 | 0.3 |
| Virginia | 14 | 0.2 |
| Washington | 58 | 0.7 |
| West Virginia | 8 | 0.5 |
| Wisconsin | 80 | 1.4 |
| Wyoming | 2 | 0.3 |
In federal data
- NUCC code207ZP0105X · Pathology
- Size rank239th of 688 specialties by records (0.02% of all)
- In its family3rd of 16 Pathology codes, 5.5% of the family
- Part D prescribers37 (2.7% of records)
- Part D claims34 a year per prescriber, on average (435th of 496)
- Industry payments177 physicians paid $1.2M in 2024, $7K each on average
- Concentration8 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 clinical pathology/laboratory medicine physician records
- Megan Davies, D.O.Anchorage, AK1285797753
- Jose Lima, MDHoover, AL1578784518
- David Kelly, MDBirmingham, AL1447263967
- Elizabeth Mroezek-Musulman, MDBirmingham, AL1801809330
- Nirupama SinghBirmingham, AL1255742680
- Yanna Ding, MD, PH.DBirmingham, AL1932691094
- Kiana BattleBirmingham, AL1336001106
- Marla Troughton, MDHoover, AL1598958910
- Seung Park, M.D.Birmingham, AL1982816492
- Rance Siniard, M.D.Birmingham, AL1770764813
- Sixto LealBirmingham, AL1528488590
- Tanikia Perkins, BS, MLSMontgomery, AL1245070416
- Nella Fernandez, M.D.Montgomery, AL1023272168
- Floyd Boudreau, MDMobile, AL1487635017
- Regan Cardamone, MDMobile, AL1194706721
- Robert Donnell, MDMobile, AL1639150279
Registry order, not a ranking. Search by name to find one provider.
Common questions
How should I read Clinical Pathology/Laboratory Medicine Physician's mid-pack national roster?
1,347 CMS-registered Clinical Pathology/Laboratory Medicine Physician providers sit across 50 states; California leads with 131. Leading metros: Rochester, MN; Madison, WI; Philadelphia, PA; Seattle, WA. Rank 239th of 688 NUCC specialties by headcount.
How does Clinical Pathology/Laboratory Medicine Physician show up in Open Payments mid-pack?
CMS Open Payments 2024 lists 177 Clinical Pathology/Laboratory Medicine Physician physicians receiving $1.2M across 965 payments (average $7K; 65th of 470 specialties). Not a quality score.
How much Part D prescribing does this specialty do?
Among Clinical Pathology/Laboratory Medicine Physician NPIs, 37 appear in the Medicare Part D Prescriber PUF (average 34 claims and $15K drug cost per prescriber; 435th 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.