Clinical Pathologists (Laboratory Medicine) in Missouri
Data updated monthly · Last refresh October 2026
28 Clinical Pathology/Laboratory Medicine providers practice in Missouri. The largest concentration is in Saint Louis. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
28providers
Saint Louistop city
Clinical Pathology/Laboratory Medicine by city in Missouri
Choose a city to see providers there.
Where Clinical Pathologists (Laboratory Medicine) in Missouri practice
From CMS Medicare enrollment records covering 8 of the 28 providers listed here (29%). Providers who do not bill Medicare are not included in these figures.
Largest practice groups
| Group (as registered with Medicare) | Clinical Pathologists (Laboratory Medicine) | All clinicians in group | Main city |
| Washington University | 5 | 2,968 | Saint Louis |
| Ssm Health Care Group | 2 | 929 | Saint Louis |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Clinical Pathologists (Laboratory Medicine) affiliated |
| Barnes Jewish Hospital | Saint Louis | Nonprofit | 4 of 5 | 5 |
| Parkland Health Center | Farmington | Nonprofit | 4 of 5 | 3 |
| Christian Hospital Northeast | Saint Louis | Nonprofit | 4 of 5 | 2 |
| Barnes-Jewish West County Hospital | Creve Coeur | Nonprofit | 5 of 5 | 2 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Clinical Pathology/Laboratory Medicine providers in Missouri
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Daniel Gwartney, M.D.Columbia, MO · No drug or device payments recorded (2025) ·
(573) 442-2311 Dr. Frederick Plapp, MD PHDKansas City, MO · No drug or device payments recorded (2025) ·
(816) 932-3335 Dr. Lisa Menninger, MDKansas City, MO · No drug or device payments recorded (2025) ·
(816) 932-3660 Dr. Marilyn Hamilton, M.D.Kansas City, MO · No drug or device payments recorded (2025) ·
(816) 234-3234 Dr. Megan Gripka, MPH, MLS (ASCP) SMKansas City, MO · No drug or device payments recorded (2025) ·
(913) 244-9788 Dr. Andres Dajles, MD,PHDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 747-0687 Dr. Arjun Raman, M.D./PH.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5000 Dr. Bijal Parikh, MDSaint Louis, MO · $1,650 in drug and device payments (2025) ·
(314) 362-5641 Dr. Brian Edelson, M.D., PH.D.Saint Louis, MO · $126 in drug and device payments (2025) ·
(314) 362-1935 Dr. David Spencer, MD/PHDSaint Louis, MO · $17 in drug and device payments (2025) ·
(314) 362-1454 Dr. Donald Mulford, D.O.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 331-4040 Dr. Douglas Lublin, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5641 Dr. Emily Schindler, MD, PHDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 251-6243 Dr. Gary Grajales-reyes, M.D. PH.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5000 Dr. Hande Piristine, PHDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 747-0687 Dr. Jacqueline Payton, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5641 Dr. Jane Lee, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 480-0110 Dr. Joshua Hood, M.D., PH.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-6116 Dr. Karen Lister, M.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 966-9590 Dr. Lii-mei Tsai, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 645-6454 Dr. Marilyn Johnston, M.D.Saint Louis, MO · No drug or device payments recorded (2025) ·
(314) 653-5630 Dr. Nima Mosammaparast, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5641 Dr. Ronald Jackups, MDSaint Louis, MO · $5,822 in drug and device payments (2025) ·
(314) 362-5641 Dr. Stephen Persaud, MDSaint Louis, MO · No drug or device payments recorded (2025) ·
(314) 362-5641 Dr. Mary Kay Vaske, MDSpringfield, MO · No drug or device payments recorded (2025) ·
(417) 820-6850 Dr. Aleksandar Babic, M.D., PH.D.St. Louis, MO · No drug or device payments recorded (2025) ·
(314) 257-8768 Dr. Homayemem Weli, MD MSC PHDSt. Louis, MO · No drug or device payments recorded (2025) ·
(314) 747-3000 Common questions
How many Clinical Pathology/Laboratory Medicine providers are in Missouri?There are 28 Clinical Pathology/Laboratory Medicine providers with active NPI records practicing in Missouri, according to federal NPPES data refreshed monthly.
Which cities in Missouri have the most Clinical Pathology/Laboratory Medicine providers?Saint Louis (19), Kansas City (4), St Louis (2) have the highest concentration of Clinical Pathology/Laboratory Medicine providers in Missouri.
How many Clinical Pathology/Laboratory Medicine providers in Missouri received drug or device company payments?5 of 28 Clinical Pathology/Laboratory Medicine providers in Missouri (18%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Which hospitals do Clinical Pathologists (Laboratory Medicine) in Missouri work at?According to CMS facility affiliation records, the Missouri hospitals where the most Clinical Pathologists (Laboratory Medicine) hold privileges are Barnes Jewish Hospital in Saint Louis; Parkland Health Center in Farmington; Christian Hospital Northeast in Saint Louis.
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