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Hematology

Nitya Nathwani, MD

Sees patients in Duarte, CA · South Pasadena, CA · California

Summary

Dr. Nitya Nathwani, MD is a hematologist at 1500 Duarte Rd, Duarte, CA 91010. Phone: (626) 256-4673. Accepts Medicare assignment. In 2024, Nitya Nathwani had 123 Original Medicare patients and 654 services. NPI 1871827345. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Hematologist (Medicare lists Hematology)
  • Address: 1500 Duarte Rd, Duarte, CA 91010 · Directions (2 more locations)
  • Phone: (626) 256‑4673
  • Medicare: Accepts Medicare assignment
  • Group practice: City of Hope Medical Foundation
  • Medical school: graduated 2002 (24 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Nitya Nathwani, 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 Nitya Nathwani accept Medicare assignment?
Yes. Medicare's clinician data says Nitya Nathwani 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 Nitya Nathwani see?
In 2024, CMS data shows 123 Original Medicare patients and 654 services for Nitya Nathwani. This counts Original Medicare only and measures volume, not quality.
What is Nitya Nathwani's NPI number?
1871827345. 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 Nitya Nathwani, 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 patients123
Services billed to Medicare654
Different services or procedures16
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)265 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)170 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)131 services
  4. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)25 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 blood pressure75%
  • High cholesterol71%
  • Arthritis50%
  • Ischemic heart disease37%
  • Diabetes36%
  • Chronic kidney disease32%

Practice locations

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

Group practices

Medicare enrollment lists Nitya Nathwani as a member of this group (CMS data updated October 2, 2026).

  • City of Hope Medical Foundation982 clinicians in the group

Specialties

Find other Hematology doctors in California →

Other hematologists in Duarte

Clinicians with the same Medicare primary specialty in Duarte, CA — not a recommendation.

All hematologists in Duarte →

Other clinicians in City of Hope Medical Foundation

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2002 (24 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1871827345
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