Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Dhruv Markan, MD

Individual provider Internal Medicine Physician · NPI 1598393399

Dr. Dhruv Markan, MD practises Internal Medicine in New York, New York. Qualified in 2011, 15 years ago. Practices with Kelsey-Seybold Medical Group, PLLC, a 942-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
15
Licensed in
TX
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

317 E 34th St
New York, NY 10016-4974
Phone: (212) 726-7400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3102 Kirby Dr, Houston, TX 77098-2122 — (346) 674-2300

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence W0223 (TX)

Record details

NPI number1598393399
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 29, 2020
Last updated in NPPESAugust 1, 2025
Certification dateAugust 1, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice Kelsey-Seybold Medical Group, Pllc — 942 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients59
Services billed 328 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Kelsey-Seybold Medical Group, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 942 clinicians in the practice; 12 are shown here.

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