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Family Practice

Mark A. Hacholski, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Mark A. Hacholski, MD is a family doctor at 10670 Wexford St, San Diego, CA 92131. Phone: (858) 621-4002. Accepts Medicare assignment. In 2024, Mark A. Hacholski had 105 Original Medicare patients and 778 services. NPI 1568995694. 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: Family doctor (Medicare lists Family Practice)
  • Address: 10670 Wexford St, San Diego, CA 92131 · Directions (1 more location)
  • Phone: (858) 621‑4002
  • Medicare: Accepts Medicare assignment
  • Hospital: Sharp Memorial Hospital
  • Group practice: Sharp Rees-Stealy Medical Group Inc
  • Medical school: graduated 2017 (9 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mark A. Hacholski, 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 Mark A. Hacholski accept Medicare assignment?
Yes. Medicare's clinician data says Mark A. Hacholski 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 Mark A. Hacholski see?
In 2024, CMS data shows 105 Original Medicare patients and 778 services for Mark A. Hacholski. This counts Original Medicare only and measures volume, not quality.
What is Mark A. Hacholski's NPI number?
1568995694. 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 Mark A. Hacholski, 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 patients105
Services billed to Medicare778
Different services or procedures26
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)107 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)27 services
  3. Injection of drug or substance under skin or into muscle (96372)21 services
  4. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)13 services
  5. Telephone medical discussion with physician, 11-20 minutes (99442)12 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 pressure66%
  • High cholesterol54%
  • Diabetes35%
  • Arthritis33%
  • Chronic kidney disease29%
  • Depression18%

Hospitals where Mark A. Hacholski works

Medicare's Facility Affiliation Data lists Mark A. Hacholski 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.

Practice locations

Addresses where Mark A. Hacholski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mark A. Hacholski as a member of this group (CMS data updated October 2, 2026).

  • Sharp Rees-Stealy Medical Group Inc884 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in San Diego

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

All family doctors in San Diego →

Other clinicians in Sharp Rees-Stealy Medical Group Inc

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

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1568995694
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