Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Medical Oncology

Tanyanika L. Phillips, MD

Works at hospitals in Lancaster, CA · Bishop, CA · Palmdale, CA … · California

Summary

Dr. Tanyanika L. Phillips, MD is an oncologist at 209 Fair Oaks Ave, South Pasadena, CA 91030. Phone: (626) 396-2900. Accepts Medicare assignment. In 2024, Tanyanika L. Phillips had 474 Original Medicare patients and 96,947 services. NPI 1003952151. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Tanyanika L. Phillips, 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 Tanyanika L. Phillips accept Medicare assignment?
Yes. Medicare's clinician data says Tanyanika L. Phillips 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 Tanyanika L. Phillips see?
In 2024, CMS data shows 474 Original Medicare patients and 96,947 services for Tanyanika L. Phillips. This counts Original Medicare only and measures volume, not quality.
What is Tanyanika L. Phillips's NPI number?
1003952151. 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 Tanyanika L. Phillips, 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 patients474
Services billed to Medicare96,947
Different services or procedures122
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, oxaliplatin, 0.5 mg (J9263)10,200 services
  2. Injection, aprepitant, 1 mg (J0185)7,800 services
  3. Injection, nivolumab, 1 mg (J9299)7,220 services
  4. Injection, pembrolizumab, 1 mg (J9271)4,400 services
  5. Injection, denosumab, 1 mg (J0897)2,160 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 cholesterol72%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)59%
  • Arthritis48%
  • Diabetes41%
  • Chronic kidney disease31%

Hospitals where Tanyanika L. Phillips works

Medicare's Facility Affiliation Data lists Tanyanika L. Phillips at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Antelope Valley HospitalLancaster, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050056
  • Northern Inyo HospitalBishop, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 051324
  • Palmdale Regional Medical CenterPalmdale, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050204
  • Ridgecrest Regional HospitalRidgecrest, CA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 051333

Practice locations

Addresses where Tanyanika L. Phillips is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Tanyanika L. Phillips as a member of this group (CMS data updated October 2, 2026).

  • City of Hope Medical Foundation982 clinicians in the group

Specialties

Find other Medical Oncology doctors in California →

Other oncologists in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All oncologists in California →

Other clinicians in City of Hope Medical Foundation

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

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year1998 (28 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1003952151
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians