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Internal Medicine

Shabana Siddiqui, MD

Works at hospitals in La Mesa, CA · California

Summary

Dr. Shabana Siddiqui, MD is an internal medicine doctor at 5555 Grossmont Ctr Dr, La Mesa, CA 91942. Phone: (619) 461-1920. Accepts Medicare assignment. In 2024, Shabana Siddiqui had 211 Original Medicare patients and 1,219 services. NPI 1326229295. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 5555 Grossmont Ctr Dr, La Mesa, CA 91942 · Directions (1 more location)
  • Phone: (619) 461‑1920
  • Medicare: Accepts Medicare assignment
  • Hospital: Grossmont Hospital
  • Group practice: Emergency and Acute Care Medical Corporation (+1 more)
  • Medical school: University Of South Carolina School Of Medicine · graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Shabana Siddiqui, 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 Shabana Siddiqui accept Medicare assignment?
Yes. Medicare's clinician data says Shabana Siddiqui 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 Shabana Siddiqui see?
In 2024, CMS data shows 211 Original Medicare patients and 1,219 services for Shabana Siddiqui. This counts Original Medicare only and measures volume, not quality.
What is Shabana Siddiqui's NPI number?
1326229295. 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 Shabana Siddiqui, 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 patients211
Services billed to Medicare1,219
Different services or procedures9
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)836 services
  2. Hospital discharge day management, more than 30 minutes (99239)169 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)155 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)46 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%
  • Ischemic heart disease56%
  • Heart failure52%
  • Arthritis51%
  • Diabetes49%

Hospitals where Shabana Siddiqui works

Medicare's Facility Affiliation Data lists Shabana Siddiqui 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.

  • Grossmont HospitalLa Mesa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050026

Practice locations

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

Group practices

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

  • Emergency and Acute Care Medical Corporation422 clinicians in the group
  • San Diego Critical Care Medical Group Inc78 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in La Mesa

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

All internal medicine doctors in La Mesa →

Other clinicians in Emergency and Acute Care Medical Corporation

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

Clinician information

CredentialMD
Medical schoolUniversity Of South Carolina School Of Medicine
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326229295
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