Doctor profile · Federal record

Dr. Megan Mastalerz, PHD

Clinical Psychologist · Rehabilitation Psychologist · Baltimore, MD

  • NPI 1669728168
  • MIPS 74.4 / 100 · 2023
  • 14 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
600 N Wolfe St, Johns Hopkins Hospital
Baltimore, MD 21287
(443) 444-4700

Credentials & registration

NPPES · NUCC
NPI registered
August 2012 — 14 yrs on file
Profile last updated
June 10, 2019
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
103TC0700X — NUCC code
State license (1)
Maryland #05455

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669728168. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
51
Distinct HCPCS
3
Medicare allowed
$3,668
HCPCS Description Services Patients Avg allowed
96116 Exam of neurobehavioral status, first hour 19 18 $84
96121 Exam of neurobehavioral status, each additional hour 16 16 $70
96158 Treatment of behavior impacting health, initial 30 minutes 16 12 $60

In context: peer comparison

Among 14 peers in Baltimore Clinical Psychologist, average services per provider: 77. This provider delivers 0.7× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Megan Mastalerz's medical specialty?
Dr. Megan Mastalerz practices Clinical Psychologist in Baltimore, MD.
Where does Dr. Megan Mastalerz practice?
Dr. Megan Mastalerz practices at 600 N Wolfe St, Baltimore, MD 21287. Office phone: 4434444700.
What is Dr. Megan Mastalerz's NPI?
Dr. Megan Mastalerz's National Provider Identifier (NPI) is 1669728168, issued by NPPES.
Does Dr. Megan Mastalerz accept Medicare assignment?
Dr. Megan Mastalerz does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Megan Mastalerz commonly perform?
Top Medicare-reported procedures in 2023: Exam of neurobehavioral status, first hour (HCPCS 96116); Exam of neurobehavioral status, each additional hour (HCPCS 96121); Treatment of behavior impacting health (HCPCS 96158). Source: CMS Medicare Physician & Other Practitioners file.