NPPES file of Aug 9, 2026

Dhruv Markan, MD

Internal Medicine Physician · New York, NY

Dhruv Markan, MD is an internal medicine physician with a practice address in New York, New York, and NPI 1598393399, issued on Mar 29, 2020. Check the license on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1598393399
Name
Dhruv Markan
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
W0223 TX
Self-reported in NPPES; status is on the state search
Practice location
317 E 34TH St, New York, NY 10016
Phone
(212) 726-7400
Enumerated
Mar 29, 2020
Record last updated
Aug 1, 2025
Medicare enrollment
Enrolled (PECOS I20250815001698); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 317 E 34TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mitchell Adler, MDInternal Medicine Physician1881699791
  2. Olubunmi Afonja, MB, BSPediatric Hematology & Oncology Physician1194719492
  3. Eileen Alexander, M.D.Pediatrics Physician1447488150
  4. Jeffrey Allen, MDPediatric Hematology & Oncology Physician1154397727
  5. Robert Anolik, MDSpecialist1932314929
  6. Ann Aurigemma, NPPediatric Nurse Practitioner1013887330

Verify Dhruv Markan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the ProfessionsCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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93% fewer Medicare Part D claims than the average internal medicine physician in 2024

228 Medicare Part D claims for 68 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Dhruv Markan228
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate26 claims
  2. Atorvastatin Calcium26 claims
  3. Losartan Potassium13 claims
  4. Tamsulosin Hcl13 claims
  5. Hydrochlorothiazide12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Kelsey-Seybold Medical Group, PLLCHouston, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Dhruv Markan among 12,067 internal medicine physician records in New York

Dhruv Markan, MD is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 87% of them.

  • NPI issued2020 · 87% of these records are older, 9% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2011 · median 2002 among the 7,221 with a school on file
  • Record last updated2025 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2,434 internal medicine physician records list a practice address in New York

They are 2,434 of the 98,468 NPPES records with a practice address in New York, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Mitchell Adler, MDNew York, NY 100161881699791
  2. Edward Barnes, MDNew York, NY 100161356340145
  3. Amy Bleyer, MDNew York, NY 100161043219421
  4. James Cheng, MDNew York, NY 100161811990120
  5. Kimberly Deore, M.D.New York, NY 100161528054038
  6. Joseph Devito, MDNew York, NY 100161154329514
  7. Jeffrey Friedman, MDNew York, NY 100161790783157
  8. Michael Glasser, MDNew York, NY 100161164421947

Common questions

What is Dhruv Markan, MD's NPI number?

Dhruv Markan, MD's National Provider Identifier (NPI) is 1598393399, issued on Mar 29, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Dhruv Markan, MD located?

The NPPES record lists a practice address at 317 E 34TH St, New York, NY, 10016. Phone: (212) 726-7400. Providers update this record themselves, so call before visiting.

How can I verify Dhruv Markan, MD's license?

Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Dhruv Markan, MD prescribe under Medicare Part D?

In 2024, Dhruv Markan, MD had 228 Medicare Part D claims for 68 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.