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

General Practice

Marigangaiah Mahadev, MD

Sees patients in Anaheim, CA · California

Summary

Dr. Marigangaiah Mahadev, MD is a general practitioner at 125 S Chaparral Ct, Suite 102, Anaheim, CA 92808. Phone: (714) 998-1941. May accept Medicare assignment. In 2024, Marigangaiah Mahadev had 29 Original Medicare patients and 80 services. NPI 1245264902. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: General practitioner (Medicare lists General Practice)
  • Address: 125 S Chaparral Ct, Suite 102, Anaheim, CA 92808 · Directions
  • Phone: (714) 998‑1941
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 1979 (47 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Marigangaiah Mahadev, 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 Marigangaiah Mahadev accept Medicare assignment?
Medicare's clinician data says Marigangaiah Mahadev may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Marigangaiah Mahadev see?
In 2024, CMS data shows 29 Original Medicare patients and 80 services for Marigangaiah Mahadev. This counts Original Medicare only and measures volume, not quality.
What is Marigangaiah Mahadev's NPI number?
1245264902. 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 Marigangaiah Mahadev, 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 patients29
Services billed to Medicare80
Different services or procedures8
Participating Medicare providerYes
Average age of these patients75

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)61 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 cholesterol75%
  • High blood pressure69%
  • Diabetes52%
  • Arthritis45%

Practice locations

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

Specialties

Find other General Practice doctors in California →

Other general practitioners in Anaheim

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

All general practitioners in Anaheim →

Clinician information

CredentialMD
Graduation year1979 (47 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1245264902
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