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

Internal Medicine

Chaitanya Mahida, MD

Works at hospitals in Sonora, CA · Modesto, CA · Oakdale, CA · California

Summary

Dr. Chaitanya Mahida, MD is an internal medicine doctor at 1425 W H St, Suite 380, Oakdale, CA 95361. Phone: (209) 847-0314. Accepts Medicare assignment. In 2024, Chaitanya Mahida had 689 Original Medicare patients and 7,889 services. NPI 1639189616. 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 Chaitanya Mahida, 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 Chaitanya Mahida accept Medicare assignment?
Yes. Medicare's clinician data says Chaitanya Mahida 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 Chaitanya Mahida see?
In 2024, CMS data shows 689 Original Medicare patients and 7,889 services for Chaitanya Mahida. This counts Original Medicare only and measures volume, not quality.
What is Chaitanya Mahida's NPI number?
1639189616. 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 Chaitanya Mahida, 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 patients689
Services billed to Medicare7,889
Different services or procedures55
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)1,440 services
  2. Injection, methylprednisolone acetate, 1 mg (J1010)1,160 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)1,056 services
  4. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)568 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)496 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%
  • Arthritis51%
  • Diabetes35%
  • Ischemic heart disease26%
  • Chronic kidney disease25%

Hospitals where Chaitanya Mahida works

Medicare's Facility Affiliation Data lists Chaitanya Mahida 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.

  • Adventist Health SonoraSonora, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: not listed by Medicare · CCN 050335
  • Doctors Medical CenterModesto, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050464
  • Memorial Medical CenterModesto, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050557
  • Oak Valley Hospital DistrictOakdale, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050067

Practice locations

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

Group practices

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

  • Chaitanya N. Mahida M.D., Inc2 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Oakdale

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

All internal medicine doctors in Oakdale →

Other clinicians in Chaitanya N. Mahida M.D., Inc

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

Clinician information

CredentialMD
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639189616
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