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Internal Medicine

Okan I. Akay, MD

Works at hospitals in Carlisle, PA · Hanover, PA · Lititz, PA … · Pennsylvania

Summary

Dr. Okan I. Akay, MD is an internal medicine doctor at 233 College Ave, Suite 201, Lancaster, PA 17603. Phone: (717) 735-3918. Accepts Medicare assignment. In 2024, Okan I. Akay had 295 Original Medicare patients and 873 services. NPI 1548503584. 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: 233 College Ave, Suite 201, Lancaster, PA 17603 · Directions (1 more location)
  • Phone: (717) 735‑3918
  • Medicare: Accepts Medicare assignment
  • Hospitals: UPMC Carlisle, UPMC Hanover, UPMC Lititz and 2 more
  • Group practice: Pinnacle Health Medical Services (+1 more)
  • Medical school: graduated 2013 (13 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 Okan I. Akay, 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 Okan I. Akay accept Medicare assignment?
Yes. Medicare's clinician data says Okan I. Akay 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 Okan I. Akay see?
In 2024, CMS data shows 295 Original Medicare patients and 873 services for Okan I. Akay. This counts Original Medicare only and measures volume, not quality.
What is Okan I. Akay's NPI number?
1548503584. 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 Okan I. Akay, 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 patients295
Services billed to Medicare873
Different services or procedures13
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)372 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)241 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)194 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)19 services
  5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)18 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%
  • Arthritis64%
  • Diabetes57%
  • Ischemic heart disease57%
  • Chronic kidney disease57%

Hospitals where Okan I. Akay works

Medicare's Facility Affiliation Data lists Okan I. Akay 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.

  • UPMC CarlisleCarlisle, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390058
  • UPMC HanoverHanover, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390233
  • UPMC LititzLititz, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390068
  • UPMC MemorialYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390101
  • UPMC Pinnacle HospitalsHarrisburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390067

Practice locations

Addresses where Okan I. Akay is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Okan I. Akay as a member of these groups (CMS data updated October 2, 2026).

  • Pinnacle Health Medical Services1,019 clinicians in the group
  • Pinnacle Health Regional Physicians154 clinicians in the group

Specialties

Find other Internal Medicine doctors in Pennsylvania →

Other internal medicine doctors in Lancaster

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

All internal medicine doctors in Lancaster →

Other clinicians in Pinnacle Health Medical Services

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

Clinician information

CredentialMD
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1548503584
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