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Internal Medicine

Edward P. Costlow Jr., MD

Works at hospitals in Baltimore, MD · Maryland

Summary

Dr. Edward P. Costlow Jr., MD is an internal medicine doctor at 10 Gerard Ave, Suite 214, Timonium, MD 21093. Phone: (410) 561-1585. May accept Medicare assignment. NPI 1275664450. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 10 Gerard Ave, Suite 214, Timonium, MD 21093 · Directions (1 more location)
  • Phone: (410) 561‑1585
  • Medicare: May accept Medicare assignment
  • Hospital: Greater Baltimore Medical Center
  • Group practice: Agape Physical Therapy and Sports Rehabilitation LP
  • Medical school: Johns Hopkins University School Of Medicine · graduated 1975 (51 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Edward P. Costlow Jr., 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 Edward P. Costlow Jr. accept Medicare assignment?
Medicare's clinician data says Edward P. Costlow Jr. may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Edward P. Costlow Jr.'s NPI number?
1275664450. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Edward P. Costlow Jr. works

Medicare's Facility Affiliation Data lists Edward P. Costlow Jr. 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 Edward P. Costlow Jr. is enrolled with Medicare (CMS data updated October 2, 2026).

  • 10 Gerard Ave, Suite 214Timonium, MD 21093 (410) 561‑1585
  • 12 Newport Dr, Suite AForest Hill, MD 21050

Group practices

Medicare enrollment lists Edward P. Costlow Jr. as a member of this group (CMS data updated October 2, 2026).

  • Agape Physical Therapy and Sports Rehabilitation LP678 clinicians in the group

Specialties

Find other Internal Medicine doctors in Maryland →

Other internal medicine doctors in Timonium

Clinicians with the same Medicare primary specialty in Timonium, MD — not a recommendation.

All internal medicine doctors in Timonium →

Other clinicians in Agape Physical Therapy and Sports Rehabilitation LP

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

Clinician information

CredentialMD
Medical schoolJohns Hopkins University School Of Medicine
Graduation year1975 (51 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1275664450
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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians