Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Psychiatry

Justin M. Lazaroff, DO

Sees patients in Philadelphia, PA · Pennsylvania

Summary

Dr. Justin M. Lazaroff, DO is a psychiatrist at 4200 Monument Rd, Philadelphia, PA 19131. Phone: (215) 877-2000. May accept Medicare assignment. In 2024, Justin M. Lazaroff had 49 Original Medicare patients and 447 services. NPI 1740541549. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 4200 Monument Rd, Philadelphia, PA 19131 · Directions
  • Phone: (215) 877‑2000
  • Medicare: May accept Medicare assignment
  • Group practice: Belmont Behavioral Hospital LLC
  • Medical school: Lake Erie College Of Osteopathic Medicine, Erie · graduated 2012 (14 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Justin M. Lazaroff, 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 Justin M. Lazaroff accept Medicare assignment?
Medicare's clinician data says Justin M. Lazaroff may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Justin M. Lazaroff see?
In 2024, CMS data shows 49 Original Medicare patients and 447 services for Justin M. Lazaroff. This counts Original Medicare only and measures volume, not quality.
What is Justin M. Lazaroff's NPI number?
1740541549. 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 Justin M. Lazaroff, 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 patients49
Services billed to Medicare447
Different services or procedures5
Participating Medicare providerYes
Average age of these patients45

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)405 services
  2. Hospital discharge day management, 30 minutes or less (99238)22 services
  3. Psychiatric diagnostic evaluation with medical services (90792)17 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).

  • Anxiety75%
  • High blood pressure57%
  • Depression55%
  • High cholesterol47%
  • Asthma41%

Practice locations

Addresses where Justin M. Lazaroff is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Belmont Behavioral Hospital LLC11 clinicians in the group

Specialties

Find other Psychiatry doctors in Pennsylvania →

Other psychiatrists in Philadelphia

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

All psychiatrists in Philadelphia →

Other clinicians in Belmont Behavioral Hospital LLC

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

Clinician information

CredentialDO
Medical schoolLake Erie College Of Osteopathic Medicine, Erie
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1740541549
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians