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Family Practice

Andrew D. Mleynek, DO

Works at hospitals in Fountain Valley, CA · California

Summary

Dr. Andrew D. Mleynek, DO is a family doctor at 9131 Adams Ave, Huntington Beach, CA 92646. Phone: (714) 845-5900. Accepts Medicare assignment. In 2024, Andrew D. Mleynek had 48 Original Medicare patients and 179 services. NPI 1679551873. 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: 9131 Adams Ave, Huntington Beach, CA 92646 · Directions
  • Phone: (714) 845‑5900
  • Medicare: Accepts Medicare assignment
  • Hospital: Memorialcare Orange Coast Medical Center
  • Group practice: Beach Family Doctors Medical Group
  • Medical school: University Of North Texas Hsc, College Of Osteopathic Med · graduated 1998 (28 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew D. Mleynek, 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 Andrew D. Mleynek accept Medicare assignment?
Yes. Medicare's clinician data says Andrew D. Mleynek 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 Andrew D. Mleynek see?
In 2024, CMS data shows 48 Original Medicare patients and 179 services for Andrew D. Mleynek. This counts Original Medicare only and measures volume, not quality.
What is Andrew D. Mleynek's NPI number?
1679551873. 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 Andrew D. Mleynek, 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 patients48
Services billed to Medicare179
Different services or procedures21
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)45 services
  2. Insertion of needle into vein for collection of blood sample (36415)36 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)23 services
  4. Administration of influenza virus vaccine (G0008)16 services
  5. Stool analysis for blood to screen for colon tumors (82270)14 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 cholesterol67%
  • High blood pressure60%
  • Arthritis44%
  • Diabetes25%
  • Atrial fibrillation23%

Hospitals where Andrew D. Mleynek works

Medicare's Facility Affiliation Data lists Andrew D. Mleynek 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 Andrew D. Mleynek is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Andrew D. Mleynek as a member of this group (CMS data updated October 2, 2026).

  • Beach Family Doctors Medical Group11 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Huntington Beach

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

All family doctors in Huntington Beach →

Other clinicians in Beach Family Doctors Medical Group

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

Clinician information

CredentialDO
Medical schoolUniversity Of North Texas Hsc, College Of Osteopathic Med
Graduation year1998 (28 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679551873
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