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Family Practice

Mercedes A. Timko, MD

Works at hospitals in Philadelphia, PA · Pennsylvania

Summary

Dr. Mercedes A. Timko, MD is a family doctor at 145 King of Prussia Rd 301, Adolescentand Yng Adult Med, Radnor, PA 19087. Phone: (610) 902-2450. Accepts Medicare assignment. In 2024, Mercedes A. Timko had 16 Original Medicare patients and 79 services. NPI 1851550479. 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: 145 King of Prussia Rd 301, Adolescentand Yng Adult Med, Radnor, PA 19087 · Directions (1 more location)
  • Phone: (610) 902‑2450
  • Medicare: Accepts Medicare assignment
  • Hospital: Hospital of University of Pennsylvania
  • Group practice: Clinical Care Associates of the University of Pennsylvania Health.
  • Medical school: graduated 2007 (19 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Mercedes A. Timko, 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 Mercedes A. Timko accept Medicare assignment?
Yes. Medicare's clinician data says Mercedes A. Timko 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 Mercedes A. Timko see?
In 2024, CMS data shows 16 Original Medicare patients and 79 services for Mercedes A. Timko. This counts Original Medicare only and measures volume, not quality.
What is Mercedes A. Timko's NPI number?
1851550479. 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 Mercedes A. Timko, 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 patients16
Services billed to Medicare79
Different services or procedures11
Participating Medicare providerYes
Average age of these patients33

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)34 services
  2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)22 services

Hospitals where Mercedes A. Timko works

Medicare's Facility Affiliation Data lists Mercedes A. Timko 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 Mercedes A. Timko is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Clinical Care Associates of the University of Pennsylvania Health.598 clinicians in the group

Specialties

Find other Family Practice doctors in Pennsylvania →

Other family doctors in Radnor

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

All family doctors in Radnor →

Other clinicians in Clinical Care Associates of the University of Pennsylvania Health.

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

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1851550479
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