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

Family Practice

Ramtin T. Massoudi, MD

Works at hospitals in Glendale, CA · California

Summary

Dr. Ramtin T. Massoudi, MD is a family doctor at 16661 Ventura Blvd, Suite 824, Encino, CA 91436. Phone: (310) 855-7171. Accepts Medicare assignment. In 2024, Ramtin T. Massoudi had 525 Original Medicare patients and 3,209 services. NPI 1538384797. 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: Family doctor (Medicare lists Family Practice)
  • Address: 16661 Ventura Blvd, Suite 824, Encino, CA 91436 · Directions
  • Phone: (310) 855‑7171
  • Medicare: Accepts Medicare assignment
  • Hospital: Glendale Adventist Medical Center
  • Medical school: graduated 2000 (26 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Ramtin T. Massoudi, 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 Ramtin T. Massoudi accept Medicare assignment?
Yes. Medicare's clinician data says Ramtin T. Massoudi 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 Ramtin T. Massoudi see?
In 2024, CMS data shows 525 Original Medicare patients and 3,209 services for Ramtin T. Massoudi. This counts Original Medicare only and measures volume, not quality.
What is Ramtin T. Massoudi's NPI number?
1538384797. 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 Ramtin T. Massoudi, 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 patients525
Services billed to Medicare3,209
Different services or procedures38
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)605 services
  2. Ultrasound study of arm or leg veins with compression and maneuvers (93970)450 services
  3. Ultrasound of leg arteries or artery grafts (93925)377 services
  4. Ultrasound study of arm and leg arteries (93922)298 services
  5. Ultrasound study of one arm or leg veins with compression and maneuvers (93971)264 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 cholesterol75%
  • Arthritis75%
  • Diabetes63%
  • Ischemic heart disease57%
  • Depression47%

Hospitals where Ramtin T. Massoudi works

Medicare's Facility Affiliation Data lists Ramtin T. Massoudi 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.

Practice locations

Addresses where Ramtin T. Massoudi is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Family Practice doctors in California →

Other family doctors in Encino

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

All family doctors in Encino →

Clinician information

CredentialMD
Graduation year2000 (26 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538384797
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