Dhruv Markan, MD
NPI 1598393399 · Internal Medicine Physician · New York, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dhruv Markan, MD is a Internal Medicine Physician provider in New York, NY (NPI 1598393399).
Provider details
- NPI number
- 1598393399
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- W0223 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
249 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 38 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 33 | $143 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 27 | $10 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 27 | $8 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 21 | $144 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 16 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 26 |
| Atorvastatin Calcium | 26 |
| Tamsulosin Hcl | 13 |
| Losartan Potassium | 13 |
| Hydrochlorothiazide | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 3102 Kirby DrHouston, TX 77098-2122Phone: (346) 674-2300Fax: (346) 674-2300
Registry dates
- Enumerated
- 2020-03-29
- Last updated
- 2025-08-01
- Certified
- 2025-08-01
Frequently asked questions
- What is Dhruv Markan's NPI number?
- Dhruv Markan's National Provider Identifier (NPI) is 1598393399, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dhruv Markan's specialty?
- Dhruv Markan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dhruv Markan located?
- Dhruv Markan's practice location on file with NPPES is 317 E 34th St, New York, NY 10016-4974.
- What is Dhruv Markan's phone number?
- The practice phone number listed in the NPPES registry for Dhruv Markan is (212) 726-7400.
- Does Dhruv Markan accept Medicare?
- Dhruv Markan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dhruv Markan's NPI active?
- Yes — Dhruv Markan's NPI (1598393399) is active in the NPPES registry as of the last update on 2025-08-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.