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Hospitalist

Anand Nilakantan, DO

Sees patients in Fairfax, VA · Arlington, VA · Virginia

Summary

Dr. Anand Nilakantan, DO is a hospitalist at 3620 Joseph Siewick Dr, Fairfax, VA 22033. Accepts Medicare assignment. In 2024, Anand Nilakantan had 130 Original Medicare patients and 621 services. NPI 1013107051. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Hospitalist
  • Address: 3620 Joseph Siewick Dr, Fairfax, VA 22033 · Directions (1 more location)
  • Medicare: Accepts Medicare assignment
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Anand Nilakantan, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Anand Nilakantan accept Medicare assignment?
Yes. Medicare's clinician data says Anand Nilakantan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Anand Nilakantan see?
In 2024, CMS data shows 130 Original Medicare patients and 621 services for Anand Nilakantan. This counts Original Medicare only and measures volume, not quality.
What is Anand Nilakantan's NPI number?
1013107051. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Anand Nilakantan, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients130
Services billed to Medicare621
Different services or procedures38
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Test or measurement for functional capacity, each 15 minutes (97750)134 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
  3. Administration of psychological or neuropsychological test, first 30 minutes (96136)51 services
  4. Administration of psychological or neuropsychological test, each additional 30 minutes (96137)51 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)43 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol75%
  • High blood pressure62%
  • Anxiety60%
  • Arthritis45%
  • Ischemic heart disease25%
  • Diabetes23%

Practice locations

Addresses where Anand Nilakantan is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3620 Joseph Siewick DrFairfax, VA 22033
  • 950 N Glebe Rd, Suite 700Arlington, VA 22203

Specialties

Find other Hospitalist doctors in Virginia →

Other hospitalists in Fairfax

Clinicians with the same Medicare primary specialty in Fairfax, VA — not a recommendation.

All hospitalists in Fairfax →

Clinician information

CredentialDO
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1013107051
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians