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Obstetrics/Gynecology

Andrew M. Pataki, MD

Works at hospitals in Lewisburg, PA · Pennsylvania

Summary

Dr. Andrew M. Pataki, MD is an OB-GYN at 3 Hospital Dr, Lewisburg, PA 17837. Phone: (410) 465-4690. May accept Medicare assignment. In 2024, Andrew M. Pataki had 141 Original Medicare patients and 446 services. NPI 1225097637. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 3 Hospital Dr, Lewisburg, PA 17837 · Directions (1 more location)
  • Phone: (410) 465‑4690
  • Medicare: May accept Medicare assignment
  • Hospital: WellSpan Evangelical Community Hospital
  • Group practice: Evangelical Medical Services Organization
  • Medical school: graduated 1981 (45 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew M. Pataki, 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 M. Pataki accept Medicare assignment?
Medicare's clinician data says Andrew M. Pataki may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Andrew M. Pataki see?
In 2024, CMS data shows 141 Original Medicare patients and 446 services for Andrew M. Pataki. This counts Original Medicare only and measures volume, not quality.
What is Andrew M. Pataki's NPI number?
1225097637. 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 M. Pataki, 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 patients141
Services billed to Medicare446
Different services or procedures11
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)162 services
  2. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)80 services
  3. Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)71 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 cholesterol75%
  • High blood pressure65%
  • Arthritis45%
  • Anxiety23%
  • Osteoporosis23%
  • Diabetes19%

Hospitals where Andrew M. Pataki works

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

  • 3 Hospital DrLewisburg, PA 17837
  • 3454 Ellicott Ctr Dr, Suite 103Ellicott City, MD 21043 (410) 465‑4690

Group practices

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

  • Evangelical Medical Services Organization248 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Pennsylvania →

Other OB-GYNs in Lewisburg

Clinicians with the same Medicare primary specialty in Lewisburg, PA — not a recommendation.

All OB-GYNs in Lewisburg →

Other clinicians in Evangelical Medical Services Organization

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

Clinician information

CredentialMD
Graduation year1981 (45 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1225097637
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