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Physical Medicine and Rehabilitation

Nouriel Niamehr, DO

Works at hospitals in Valencia, CA · California

Summary

Dr. Nouriel Niamehr, DO is a rehabilitation doctor at 1017 S Fair Oaks Ave, Pasadena, CA 91105. Phone: (626) 403-6200. Accepts Medicare assignment. In 2024, Nouriel Niamehr had 114 Original Medicare patients and 862 services. NPI 1679881346. 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.

  • Specialty: Rehabilitation doctor (Medicare lists Physical Medicine and Rehabilitation)
  • Address: 1017 S Fair Oaks Ave, Pasadena, CA 91105 · Directions (11 more locations)
  • Phone: (626) 403‑6200
  • Medicare: Accepts Medicare assignment
  • Hospital: Henry Mayo Newhall Hospital
  • Group practice: Healthcare Partners Affiliates Medical Group (+2 more)
  • Medical school: graduated 2007 (19 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 Nouriel Niamehr, 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 Nouriel Niamehr accept Medicare assignment?
Yes. Medicare's clinician data says Nouriel Niamehr 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 Nouriel Niamehr see?
In 2024, CMS data shows 114 Original Medicare patients and 862 services for Nouriel Niamehr. This counts Original Medicare only and measures volume, not quality.
What is Nouriel Niamehr's NPI number?
1679881346. 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 Nouriel Niamehr, 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 patients114
Services billed to Medicare862
Different services or procedures38
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)205 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)80 services
  3. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)21 services
  4. Injection of trigger points, 1-2 muscles (20552)17 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 pressure68%
  • High cholesterol67%
  • Arthritis61%
  • Diabetes44%
  • Anxiety32%
  • Ischemic heart disease28%

Hospitals where Nouriel Niamehr works

Medicare's Facility Affiliation Data lists Nouriel Niamehr 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.

  • Henry Mayo Newhall HospitalValencia, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050624

Practice locations

Addresses where Nouriel Niamehr is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 12; the Medicare profile lists all.

Group practices

Medicare enrollment lists Nouriel Niamehr as a member of these groups (CMS data updated October 2, 2026).

  • Healthcare Partners Affiliates Medical Group754 clinicians in the group
  • Algos Inc a Medical Corporation22 clinicians in the group
  • Hasan Badday MD PC6 clinicians in the group

Specialties

Find other Physical Medicine and Rehabilitation doctors in California →

Other rehabilitation doctors in Pasadena

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

All rehabilitation doctors in Pasadena →

Other clinicians in Healthcare Partners Affiliates Medical Group

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

Clinician information

CredentialDO
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1679881346
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