DR. MONTSERRAT DIAZ-ABAD M.D.
NPI 1326246265
Internal Medicine - Sleep Medicine in Baltimore, MD

Q: What is Montserrat Diaz-abad's NPI number?

The NPI number for Montserrat Diaz-abad is 1326246265. It was assigned to this individual provider in the NPPES registry on July 3, 2007.

Q: What is Montserrat Diaz-abad's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Active since July 03, 2007PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

22 S GREENE ST, BALTIMORE, MD 21201(410) 706-5549(410) 706-8162 Get Directions Write a Review

NPPES record last updated: October 15, 2012. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Montserrat Diaz-abad M.d. NPPES

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

DR. MONTSERRAT DIAZ-ABAD M.D. (NPI 1326246265) is an individual sleep medicine provider in Baltimore, Maryland, licensed in Maryland (D66093) and active in the NPI registry since July 2007. She is enrolled in Medicare PECOS, is affiliated with University Of Maryland Medical Center, and is a graduate of Other (1997).

NPPES Registry Identity

NPI1326246265

Entity TypeIndividualFemale

Primary Taxonomy207RS0012X

Provider Legal NameDR. MONTSERRAT DIAZ-ABADCredential: M.D.

Location Address22 S GREENE STBaltimore, MD 21201-1544

Mailing AddressPo Box 64442Baltimore, MD 21264-4442 · (410) 706-5549 · Fax (410) 706-8162

Phone(410) 706-5549

Fax(410) 706-8162

Sole ProprietorNo

Medical School CMSOtherGraduated 1997

Enumeration DateJuly 3, 2007

Last NPPES UpdateOctober 15, 2012

✔ NPI 1326246265 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

License✔ Licensed in MD · D66093

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License D66093 (MD)

Also ListedInternal Medicine · Pulmonary DiseaseTaxonomy 207RP1001X · License D66093 (MD)

22 S GREENE ST, Baltimore, MD 21201

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Other Identifiers 5

Medicaid4127331-00MD

Medicare PINP01032117MD

Medicare PINQ765MD

Other908461-01MD · Bc/bs

OtherS062-0315MD · Bc/bs Regional

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. Montserrat Diaz-abad 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 ID6901999101

PECOS Enrollment IDI20070904000583

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 6

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

180 services127 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

49 services49 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

25 services17 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

22 services21 patients

Sleep study in sleep lab with continuous airway pressure (6 years or older) 95811

A sleep study in a sleep lab with continuous airway pressure is a test for individuals aged 6 and above. It monitors your sleep patterns to check for disorders like sleep apnea. Continuous airway pressure helps keep your airways open while you sleep, improving your breathing.

20 services20 patients

Sleep study including heart rate, breathing, and sleep time 95800

A sleep study monitors your sleep patterns to evaluate your sleep quality. It records your heart rate, breathing, and actual sleep time. This information helps identify any sleep disorders, ensuring you get the rest you need for optimal health.

18 services17 patients

Hospital Affiliations CMS Care Compare 2

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

University Of Maryland Medical Center

Acute Care Hospitals · Baltimore, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210002

Location22 South Greene StreetBaltimore, MD 21201 · Baltimore City County

Emergency services Birthing friendly

University Of MD Medical Center Midtown Campus

Acute Care Hospitals · Baltimore, MD

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number210038

Location827 Linden AvenueBaltimore, MD 21201 · Baltimore City County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 21201 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.

100/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 27

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

Sterile water, saline and/or dextrose, diluent/flush, 10 ml A4216

DME-Medical/Surgical Supplies · category DA000N

1 supplier13 claims2,200 services$0.42 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

14 suppliers86 claims86 services$35.05 avg. paid by Medicare

Tracheostomy, inner cannula A4623

DME-Orthotic Devices · category DF000N

1 supplier13 claims744 services$6.33 avg. paid by Medicare

Gauze, non-impregnated, sterile, pad size 16 sq. in. or less, without adhesive border, each dressing A6402

DME-Medical/Surgical Supplies · category DA023N

1 supplier11 claims990 services$0.11 avg. paid by Medicare

Tubing, used with suction pump, each A7002

DME-Other DME · category DE000N

1 supplier13 claims148 services$3.35 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

12 suppliers81 claims81 services$77.25 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

13 suppliers75 claims197 services$29.13 avg. paid by Medicare

Cushion for use on nasal mask interface, replacement only, each A7032

DME-Other DME · category DE001N

12 suppliers48 claims242 services$17.02 avg. paid by Medicare

Pillow for use on nasal cannula type interface, replacement only, pair A7033

DME-Other DME · category DE001N

4 suppliers15 claims80 services$13.68 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

13 suppliers67 claims67 services$47.17 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

16 suppliers89 claims89 services$16.37 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

9 suppliers11 claims11 services$7.81 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

11 suppliers50 claims50 services$11.35 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

17 suppliers142 claims780 services$1.91 avg. paid by Medicare

Filter, non disposable, used with positive airway pressure device A7039

DME-Other DME · category DE001N

14 suppliers36 claims36 services$5.75 avg. paid by Medicare

Water chamber for humidifier, used with positive airway pressure device, replacement, each A7046

DME-Other DME · category DE001N

13 suppliers53 claims53 services$11.68 avg. paid by Medicare

Tracheostomy tube collar/holder, each A7526

DME-Orthotic Devices · category DF000N

1 supplier13 claims403 services$3.28 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$15.30 avg. paid by Medicare

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465

DME-Other DME · category DE005N

2 suppliers24 claims24 services$776.41 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

4 suppliers28 claims30 services$783.01 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, without backup rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0470

DME-Other DME · category DE001N

3 suppliers11 claims11 services$91.27 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0471

DME-Other DME · category DE001N

6 suppliers27 claims27 services$184.65 avg. paid by Medicare

Cough stimulating device, alternating positive and negative airway pressure E0482

DME-Other DME · category DE000N

2 suppliers15 claims17 services$326.42 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

6 suppliers18 claims18 services$125.95 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

6 suppliers36 claims38 services$12.24 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

13 suppliers233 claims237 services$26.21 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

3 suppliers52 claims53 services$64.72 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 20

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

DR. LEONARD ANANG SOWAH M.D.

Internal Medicine

22 S GREENE ST
BALTIMORE, MD 21201

Baltimore City (410) 706-4619

VISHAL BHATNAGAR MD

Student in an Organized Health Care Education/Training Program

22 S GREENE ST, MEDICINE, N3E09
BALTIMORE, MD 21201

Baltimore City (410) 328-6110

NANCE J FOX P.A.-C

Physician Assistant (Medical)

22 S GREENE ST, G2K36
BALTIMORE, MD 21201

Baltimore City (410) 328-1170

HILARY TAMARA WOLF MD

Pediatrics (Adolescent Medicine)

22 S GREENE ST
BALTIMORE, MD 21201

Baltimore City (410) 328-7373

MS. LINDSAY BREAM O'MEARA CRNP

Nurse Practitioner (Acute Care)

22 S GREENE ST, SUITE S4D07
BALTIMORE, MD 21201

Baltimore City (410) 328-3365

NORA T OLIVER M.D., M.P.H.

Student in an Organized Health Care Education/Training Program

22 S GREENE ST, N3E09
BALTIMORE, MD 21201

Baltimore City (410) 328-5756

SHOSHANA JO WEINER

Internal Medicine

22 S GREENE ST
BALTIMORE, MD 21201

Baltimore City (617) 214-1332

JENNA VANLIERE CANZONIERO M.D.

Internal Medicine

22 S GREENE ST, N3E09
BALTIMORE, MD 21201

Baltimore City (410) 328-5756

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 Montserrat Diaz-abad's NPI number?

The NPI number for Montserrat Diaz-abad is 1326246265. It was assigned to this individual provider in the NPPES registry on July 3, 2007.

Where is Montserrat Diaz-abad located?

Montserrat Diaz-abad practices at 22 S Greene St, Baltimore, MD 21201. The listed phone number is (410) 706-5549.

What is Montserrat Diaz-abad's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Montserrat Diaz-abad enrolled in Medicare?

Yes. Montserrat Diaz-abad 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 Montserrat Diaz-abad affiliated with any hospitals?

According to CMS data, Montserrat Diaz-abad is affiliated with University Of Maryland Medical Center and University Of MD Medical Center Midtown Campus.

When was this NPI record last updated?

The NPPES record for Montserrat Diaz-abad was last updated on October 15, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.