ZAHIR YOUSAF MD
NPI 1104806462
Internal Medicine - Pulmonary Disease in Huntingtown, MD

Q: What is Zahir Yousaf's NPI number?

The NPI number for Zahir Yousaf is 1104806462. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Q: What is Zahir Yousaf's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Zahir Yousaf was last updated on August 21, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since January 20, 2006PECOS EnrolledAccepts Medicare AssignmentCLIA 21D2114428 · Waiver

88.52/100

CMS Quality Rating

3995 OLD TOWN RD STE 201, HUNTINGTOWN, MD 20639(410) 535-0666(410) 535-3468 Get Directions Write a Review

NPPES record last updated: August 21, 2018. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Zahir Yousaf Md NPPES

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

ZAHIR YOUSAF MD (NPI 1104806462) is an individual pulmonary disease provider in Huntingtown, Maryland, licensed in Maryland (D0027189) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, holds a CLIA Waiver certificate valid through June 13, 2028, and is affiliated with Medstar Saint Mary's Hospital.

NPPES Registry Identity

NPI1104806462

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameZAHIR YOUSAFCredential: MD

Location Address3995 OLD TOWN RD STE 201Huntingtown, MD 20639

Mailing Address2417 Solomons Island RoadHuntingtown, MD 20639 · (410) 535-0666 · Fax (410) 535-3468

Phone(410) 535-0666

Fax(410) 535-3468

Sole ProprietorYes

Medical School CMSOtherGraduated 1972

Enumeration DateJanuary 20, 2006

Last NPPES UpdateAugust 21, 2018

✔ NPI 1104806462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in MD · D0027189

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal MedicineTaxonomy 207R00000X · License D0027189 (MD)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License D0027189 (MD)

3995 OLD TOWN RD STE 201, Huntingtown, MD 20639

Open in Google Maps ↗

Other Identifiers 1

Medicaid137311100MD

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

Zahir Yousaf Md 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 ID4486700135

PECOS Enrollment IDI20090922000057

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.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 21D2114428

Zahir Yousaf, MD, Fccp · Huntingtown, MD

Active · expires Jun 13, 2028

CLIA Number21D2114428

Laboratory TypePhysician Office

Certificate Effective DateJune 14, 2026

Certificate Expiration DateJune 13, 2028

Laboratory DirectorZahir Yousaf

Laboratory Phone(410) 535-0666

Laboratory LocationZahir Yousaf, MD, Fccp3995 Old Town Road Ste 201, Huntingtown, MD 20639

CLIA data matches this NPI record on: Address Name Phone

This certificate is issued to a laboratory to perform only waived tests.

Areas of Expertise CMS Part B claims 19

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.

1,236 services567 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.

144 services119 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

137 services118 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

128 services125 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

117 services117 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

82 services80 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.

71 services71 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

48 services48 patients

Influenza vaccine, inactivated 90653

The Influenza vaccine, inactivated, is a shot given to protect against the flu. It contains killed virus particles that help your body build immunity to the flu. It's recommended annually to keep your protection up-to-date. It's safe for ages 6 months and up.

47 services47 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.

36 services35 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.

31 services31 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

28 services28 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

26 services26 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

21 services21 patients

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

21 services21 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

18 services18 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

17 services17 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

14 services14 patients

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

14 services14 patients

Hospital Affiliations CMS Care Compare 2

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

Medstar Saint Mary's Hospital

Acute Care Hospitals · Leonardtown, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210028

Location25500 Point Lookout RoadLeonardtown, MD 20650 · St. Marys County

Emergency services Birthing friendly

Calverthealth Medical Center

Acute Care Hospitals · Prince Frederick, MD

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number210039

Location100 Hospital RoadPrince Frederick, MD 20678 · Calvert County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20639 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

$133.05 typical visit price

range $57.99 – $175.57

Typical copayment $33.26 (range $14.49 – $43.89)

Most-billed visit code 99204

Established Patient

$102.11 typical visit price

range $18.66 – $143.02

Typical copayment $25.52 (range $4.66 – $35.75)

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.

88.52/100

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

Individually scored

Quality

100

Improvement Activities

Cost

61.75

Reported Quality Measures

Breast Cancer Screening

86%72 patients4/55-star benchmark: 93%

Colorectal Cancer Screening

75%147 patients4/55-star benchmark: 88%

Controlling High Blood Pressure

72%122 patients4/55-star benchmark: 91%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

29%188 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

100%511 patients5/55-star benchmark: 100%

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

96%228 patients4/55-star benchmark: 98%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

65%205 patients5/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 67% · 1,151 patients

Patients screened: 69% · 1,151 patients

69%65 patients3/55-star benchmark: 100%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 0% · 145 patients

Patients totalRate: 0% · 145 patients

0%145 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 31

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

10 suppliers38 claims93 services$6.69 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

7 suppliers22 claims32 services$1.21 avg. paid by Medicare

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

DME-Other DME · category DE001N

14 suppliers173 claims173 services$34.16 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, non-disposable A7005

DME-Other DME · category DE000N

5 suppliers13 claims13 services$12.05 avg. paid by Medicare

Filter, disposable, used with aerosol compressor or ultrasonic generator A7013

DME-Other DME · category DE000N

3 suppliers11 claims13 services$0.53 avg. paid by Medicare

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

DME-Other DME · category DE001N

15 suppliers381 claims381 services$76.25 avg. paid by Medicare

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

DME-Other DME · category DE001N

15 suppliers376 claims939 services$29.84 avg. paid by Medicare

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

DME-Other DME · category DE001N

9 suppliers157 claims817 services$16.86 avg. paid by Medicare

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

DME-Other DME · category DE001N

9 suppliers118 claims627 services$13.49 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

12 suppliers274 claims274 services$47.59 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

16 suppliers392 claims392 services$16.51 avg. paid by Medicare

Chinstrap used with positive airway pressure device A7036

DME-Other DME · category DE001N

5 suppliers30 claims30 services$9.01 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

12 suppliers443 claims443 services$11.66 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

20 suppliers640 claims3,610 services$1.97 avg. paid by Medicare

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

DME-Other DME · category DE001N

12 suppliers190 claims190 services$5.18 avg. paid by Medicare

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

DME-Other DME · category DE001N

15 suppliers230 claims230 services$11.11 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

5 suppliers168 claims168 services$14.54 avg. paid by Medicare

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443

DME-Oxygen and Supplies · category DC000N

4 suppliers17 claims17 services$34.94 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

4 suppliers107 claims109 services$71.35 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

6 suppliers24 claims24 services$112.17 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

4 suppliers273 claims279 services$10.97 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers33 claims34 services$4.97 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

9 suppliers541 claims548 services$28.81 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

7 suppliers353 claims354 services$69.92 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers52 claims52 services$33.28 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

6 suppliers49 claims10,025 services$0.03 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

3 suppliers18 claims1,800 services$0.09 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

2 suppliers18 claims1,050 services$0.79 avg. paid by Medicare

Revefenacin inhalation solution, fda-approved final product, non-compounded, administered through dme, 1 microgram J7677

DME-Drugs Administered Through DME · category DG006N

1 supplier11 claims57,750 services$0.15 avg. paid by Medicare

Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553

DME-Other DME · category DE017N

3 suppliers15 claims15 services$213.32 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

7 suppliers74 claims74 services$23.93 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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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 Zahir Yousaf's NPI number?

The NPI number for Zahir Yousaf is 1104806462. It was assigned to this individual provider in the NPPES registry on January 20, 2006.

Where is Zahir Yousaf located?

Zahir Yousaf practices at 3995 Old Town Rd Ste 201, Huntingtown, MD 20639. The listed phone number is (410) 535-0666.

What is Zahir Yousaf's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Zahir Yousaf enrolled in Medicare?

Yes. Zahir Yousaf 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.

Does Zahir Yousaf hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 21D2114428) is associated with this NPI, valid through June 13, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

Is Zahir Yousaf affiliated with any hospitals?

According to CMS data, Zahir Yousaf is affiliated with Medstar Saint Mary's Hospital and Calverthealth Medical Center.

When was this NPI record last updated?

The NPPES record for Zahir Yousaf was last updated on August 21, 2018. NPI Profile syncs with the weekly NPPES data releases published by CMS.

About Zahir Yousaf Md NPPES

NPPES Registry Identity

Specialties & Licenses 3

Other Identifiers 1

Medicare Participation & PECOS CMS

Medicare Enrollment Status

CLIA Laboratory Certificates CMS CLIA

Certificate of Waiver · 21D2114428

Areas of Expertise CMS Part B claims 19

Hospital Affiliations CMS Care Compare 2

Medstar Saint Mary's Hospital

Calverthealth Medical Center

Physician Visit Costs CMS claims · ZIP area

Medicare Quality Performance CMS QPP · MIPS

Reported Quality Measures

Referred Medical Equipment & Supplies CMS DME claims 31

Frequently Asked Questions NPPES & CMS

What is Zahir Yousaf's NPI number?

Where is Zahir Yousaf located?

What is Zahir Yousaf's specialty?

Is Zahir Yousaf enrolled in Medicare?

Does Zahir Yousaf hold a CLIA laboratory certificate?

Is Zahir Yousaf affiliated with any hospitals?

When was this NPI record last updated?

Certificate of Waiver 21D2114428