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

Psychiatry

Padmini Shamasundara, MD

Sees patients in Fullerton, CA · Long Beach, CA · Anaheim, CA · California

Summary

Dr. Padmini Shamasundara, MD is a psychiatrist at 1235 N Harbor Blvd, Suite 120, Fullerton, CA 92832. Phone: (949) 503-0002. May accept Medicare assignment. In 2024, Padmini Shamasundara had 45 Original Medicare patients and 1,116 services. NPI 1861478521. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 1235 N Harbor Blvd, Suite 120, Fullerton, CA 92832 · Directions (2 more locations)
  • Phone: (949) 503‑0002
  • Medicare: May accept Medicare assignment
  • Group practice: Prime Consult and Care Inc
  • Medical school: graduated 1976 (50 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 Padmini Shamasundara, 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 Padmini Shamasundara accept Medicare assignment?
Medicare's clinician data says Padmini Shamasundara may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Padmini Shamasundara see?
In 2024, CMS data shows 45 Original Medicare patients and 1,116 services for Padmini Shamasundara. This counts Original Medicare only and measures volume, not quality.
What is Padmini Shamasundara's NPI number?
1861478521. 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 Padmini Shamasundara, 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 patients45
Services billed to Medicare1,116
Different services or procedures9
Participating Medicare providerYes
Average age of these patients64

Most frequent services

  1. Treatment using magnetic field to stimulate nerve cells in brain, subsequent delivery and management (90868)958 services
  2. Administration of psychological or neuropsychological test by technician, first 30 minutes (96138)40 services
  3. Treatment using magnetic field to stimulate nerve cells in brain, initial delivery and management (90867)35 services
  4. Treatment using magnetic field to stimulate nerve cells in brain, subsequent motor threshold redetermination with delivery and management (90869)30 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)21 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).

  • Depression75%
  • Anxiety75%
  • High cholesterol73%
  • High blood pressure56%
  • Arthritis56%

Practice locations

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

Group practices

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

  • Prime Consult and Care Inc4 clinicians in the group

Specialties

Find other Psychiatry doctors in California →

Other psychiatrists in Fullerton

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

All psychiatrists in Fullerton →

Other clinicians in Prime Consult and Care Inc

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

Clinician information

CredentialMD
Graduation year1976 (50 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
TelehealthOffers telehealth services
NPI (National Provider Identifier)1861478521
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