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

Infectious Disease

Connie J. Park, MD

Sees patients in San Leandro, CA · California

Summary

Dr. Connie J. Park, MD is an infectious disease doctor at 2500 Merced St, San Leandro, CA 94577. Phone: (510) 454-1000. Accepts Medicare assignment. In 2024, Connie J. Park had 4,859 Original Medicare patients and 13,988 services. NPI 1689816621. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Infectious disease doctor (Medicare lists Infectious Disease)
  • Address: 2500 Merced St, San Leandro, CA 94577 · Directions
  • Phone: (510) 454‑1000
  • Medicare: Accepts Medicare assignment
  • Group practice: Permanente Medical Group Inc
  • Medical school: University Of Illinois College Of Med (chi/peor/rock/chm-Urb) · graduated 2009 (17 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Connie J. Park, 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 Connie J. Park accept Medicare assignment?
Yes. Medicare's clinician data says Connie J. Park 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 Connie J. Park see?
In 2024, CMS data shows 4,859 Original Medicare patients and 13,988 services for Connie J. Park. This counts Original Medicare only and measures volume, not quality.
What is Connie J. Park's NPI number?
1689816621. 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 Connie J. Park, 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 patients4,859
Services billed to Medicare13,988
Different services or procedures14
Participating Medicare providerYes
Average age of these patients66

Most frequent services

  1. Admn sarscov2 vacc 1 dose (90480)4,470 services
  2. Sarscv2 vac 30mcg trs-suc im (91320)4,234 services
  3. Administration of influenza virus vaccine (G0008)2,566 services
  4. Influenza vaccine split virus, preservative free (90662)1,226 services
  5. Influenza vaccine, trivalent, split virus, preservative-free, 0.5 ml dosage (90656)1,174 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 pressure51%
  • High cholesterol35%
  • Diabetes31%
  • Arthritis27%
  • Chronic kidney disease17%
  • Depression12%

Practice locations

Addresses where Connie J. Park is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Connie J. Park as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in San Leandro

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

All infectious disease doctors in San Leandro →

Other clinicians in Permanente Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Illinois College Of Med (chi/peor/rock/chm-Urb)
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689816621
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