MARGARET ANNE MALLARI DO
NPI 1124518519
Internal Medicine in Baltimore, MD

Active since May 11, 2018PECOS Enrolled
74.39/100
CMS Quality Rating
5200 EASTERN AVE FL EAST2, BALTIMORE, MD 21224(410) 550-5018(410) 550-2972 Get Directions Write a Review

NPPES record last updated: September 8, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Sep 8, 2021, May 11, 2018 (2 updates tracked since 2018).

About Margaret Anne Mallari Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARGARET ANNE MALLARI DO (NPI 1124518519) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (H92410) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Bayview Medical Center, and maintains a secondary practice location in Atlantic City.

NPPES Registry Identity

NPI1124518519
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARGARET ANNE MALLARICredential: DO
Location Address5200 EASTERN AVE FL EAST2Baltimore, MD 21224-2734
Mailing Address6201 Greenleigh AveMiddle River, MD 21220-2004 · (410) 933-6423
Fax(410) 550-2972
Sole ProprietorNo
Medical School CMSRowan University School Of Osteopathic MedicineGraduated 2018
Enumeration DateMay 11, 2018
Last NPPES UpdateSeptember 8, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2021
NPI 1124518519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MD · H92410
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
5200 EASTERN AVE FL EAST2, Baltimore, MD 21224

Secondary Practice Location 1

Location 11925 Pacific AveAtlantic City, NJ 08401-6713 · Phone (609) 449-4391

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Margaret Anne Mallari Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3971909128
PECOS Enrollment IDI20210914000380
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
399 services136 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
50 services50 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
41 services40 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Johns Hopkins Bayview Medical Center

Acute Care Hospitals · Baltimore, MD
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number210029
Location4940 Eastern AvenueBaltimore, MD 21224 · Baltimore City County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21224 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$139.05 typical visit price
range $60.73 – $183.44
Typical copayment $34.76 (range $15.18 – $45.86)
Most-billed visit code 99204
Established Patient
$106.59 typical visit price
range $19.60 – $149.17
Typical copayment $26.64 (range $4.90 – $37.29)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

74.39/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality64.71
Promoting Interoperability97
Improvement Activities40
Cost52.43

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Walker, heavy duty, wheeled, rigid or folding, any type E0149
DME-Other DME · category DE000N
1 supplier11 claims11 services$5.59 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Hospitalist
5200 EASTERN AVE FL EAST2
BALTIMORE, MD 21224
Internal Medicine
5200 EASTERN AVE FL EAST2
BALTIMORE, MD 21224
Internal Medicine
5200 EASTERN AVE FL EAST2
BALTIMORE, MD 21224

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Margaret Mallari's NPI number?

The NPI number for Margaret Mallari is 1124518519. It was assigned to this individual provider in the NPPES registry on May 11, 2018.

Where is Margaret Mallari located?

Margaret Mallari practices at 5200 Eastern Ave Fl East2, Baltimore, MD 21224. The listed phone number is (410) 550-5018.

What is Margaret Mallari's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Margaret Mallari enrolled in Medicare?

Yes. Margaret Mallari is registered in the Medicare PECOS enrollment system.

Is Margaret Mallari affiliated with any hospitals?

According to CMS data, Margaret Mallari is affiliated with Johns Hopkins Bayview Medical Center.

When was this NPI record last updated?

The NPPES record for Margaret Mallari was last updated on September 8, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.