DR. MARY ELIZABETH BRENNAN M.D.
NPI 1952468670
Family Medicine in Crownsville, MD

Active since January 02, 2007PECOS EnrolledAccepts Medicare Assignment
1454 FAIRFIELD LOOP RD, CROWNSVILLE, MD 21032(410) 987-6338 Get Directions Write a Review

NPPES record last updated: February 9, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 9, 2023, Dec 28, 2022, Dec 3, 2019 and 1 more (4 updates tracked since 2017).

About Dr. Mary Elizabeth Brennan M.d. NPPES

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

DR. MARY ELIZABETH BRENNAN M.D. (NPI 1952468670) is an individual family medicine provider in Crownsville, Maryland, licensed in Maryland (D0095712) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS, is affiliated with Lovelace Medical Center, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1952468670
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARY ELIZABETH BRENNANCredential: M.D.
Location Address1454 FAIRFIELD LOOP RDCrownsville, MD 21032-2006
Mailing AddressPo Box 26028Albuquerque, NM 87125-6028 · (505) 262-7963 · Fax (505) 232-1627
Sole ProprietorNo
Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1993
Enumeration DateJanuary 2, 2007
Last NPPES UpdateFebruary 9, 20234 updates tracked since enumeration
NPPES CertifiedFebruary 9, 2023
NPI 1952468670 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in MD · D0095712 Licensed in NM · 94-199
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedPhysical Medicine & RehabilitationTaxonomy 208100000X · License 94-199 (NM)
Also ListedHospitalistTaxonomy 208M00000X · License 94-199 (NM)
1454 FAIRFIELD LOOP RD, Crownsville, MD 21032

Secondary Practice Locations 2

Location 14701 Montgomery Blvd NEAlbuquerque, NM 87109-1219 · Phone (505) 727-8360 · Fax (505) 727-8768
Location 22121 Juan Tabo Blvd NEAlbuquerque, NM 87112 · Phone (505) 237-8800 · Fax (505) 237-8801

Other Identifiers 1

MedicaidJ2527NM

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary Elizabeth Brennan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8921901778
PECOS Enrollment IDI20040129000247
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 7

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 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
716 services290 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
213 services202 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.
77 services75 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.
47 services47 patients
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.
36 services29 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
29 services29 patients

Hospital Affiliations CMS Care Compare

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

Lovelace Medical Center

Acute Care Hospitals · Albuquerque, NM
3/5 CMS rating
OwnershipProprietary
CMS Certification Number320009
Location601 Dr Martin Luther King Jr Ave NEAlbuquerque, NM 87102 · Bernalillo County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21032 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
$94.08 typical visit price
range $60.73 – $183.44
Typical copayment $23.52 (range $15.18 – $45.86)
Most-billed visit code 99203
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.

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
4 suppliers37 claims37 services$16.83 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
4 suppliers41 claims41 services$79.35 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 17

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

Skilled Nursing Facility
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Family Medicine
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Occupational Therapist
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Skilled Nursing Facility
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Occupational Therapist
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Physical Therapist
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Internal Medicine
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032
Skilled Nursing Facility
1454 FAIRFIELD LOOP RD
CROWNSVILLE, MD 21032

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 Mary Brennan's NPI number?

The NPI number for Mary Brennan is 1952468670. It was assigned to this individual provider in the NPPES registry on January 2, 2007.

Where is Mary Brennan located?

Mary Brennan practices at 1454 Fairfield Loop Rd, Crownsville, MD 21032. The listed phone number is (410) 987-6338.

What is Mary Brennan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mary Brennan enrolled in Medicare?

Yes. Mary Brennan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Mary Brennan affiliated with any hospitals?

According to CMS data, Mary Brennan is affiliated with Lovelace Medical Center.

When was this NPI record last updated?

The NPPES record for Mary Brennan was last updated on February 9, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.