DR. WILLIAM O HARTZELL M.D.
NPI 1417938986
Internal Medicine - Pulmonary Disease in Westborough, MA

Q: What is William Hartzell's NPI number?

The NPI number for William Hartzell is 1417938986. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Q: What is William Hartzell'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 William Hartzell was last updated on February 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since November 10, 2005PECOS Enrolled

150 FLANDERS RD, WESTBOROUGH, MA 01581(508) 871-2000 Get Directions Write a Review

NPPES record last updated: February 18, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. William O Hartzell M.d. NPPES

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

DR. WILLIAM O HARTZELL M.D. (NPI 1417938986) is an individual pulmonary disease provider in Westborough, Massachusetts, licensed in Virginia (0101239857) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Inova Fair Oaks Hospital, and is a graduate of University Of Virginia School Of Medicine (1992).

NPPES Registry Identity

NPI1417938986

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. WILLIAM O HARTZELLCredential: M.D.

Location Address150 FLANDERS RDWestborough, MA 01581-1017

Mailing AddressPo Box 62, Turnpike StationShrewsbury, MA 01545-0062 · (508) 334-8815 · Fax (508) 334-5374

Phone(508) 871-2000

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 1992

Enumeration DateNovember 10, 2005

Last NPPES UpdateFebruary 18, 2019

✔ NPI 1417938986 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in VA · 0101239857

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.

150 FLANDERS RD, Westborough, MA 01581

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Other Identifiers 1

Medicaid0164861MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. William O Hartzell M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9830172188

PECOS Enrollment IDI20061025000541

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.

325 services142 patients

Test to measure rate of airflow 94375

This test, known as spirometry, measures how much air you can breathe in and out, and how quickly you can do so. It helps assess your lung function and can be used to diagnose or monitor conditions like asthma or COPD.

161 services110 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.

47 services47 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.

27 services25 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.

25 services23 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

22 services18 patients

Hospital Affiliations CMS Care Compare

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

Inova Fair Oaks Hospital

Acute Care Hospitals · Fairfax, VA

5/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number490101

Location3600 Joseph Siewick DriveFairfax, VA 22033 · Fairfax County

Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01581 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

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

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 17

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

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

DME-Other DME · category DE001N

7 suppliers26 claims26 services$33.57 avg. paid by Medicare

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

DME-Other DME · category DE001N

1 supplier13 claims13 services$91.32 avg. paid by Medicare

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

DME-Other DME · category DE001N

2 suppliers12 claims30 services$35.68 avg. paid by Medicare

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

DME-Other DME · category DE001N

4 suppliers11 claims58 services$17.75 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

4 suppliers17 claims17 services$42.03 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

4 suppliers18 claims18 services$13.80 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

5 suppliers30 claims153 services$1.88 avg. paid by Medicare

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

DME-Other DME · category DE001N

3 suppliers14 claims14 services$10.02 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

3 suppliers97 claims97 services$13.80 avg. paid by Medicare

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

DME-Oxygen and Supplies · category DC000N

2 suppliers15 claims15 services$27.15 avg. paid by Medicare

Humidifier, heated, used with positive airway pressure device E0562

DME-Other DME · category DE001N

2 suppliers18 claims18 services$10.38 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

3 suppliers27 claims27 services$28.92 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 suppliers134 claims134 services$65.61 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

2 suppliers12 claims12 services$29.42 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

5 suppliers11 claims1,876 services$0.02 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 supplier12 claims63,000 services$0.15 avg. paid by Medicare

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

DME-Other DME · category DE000N

6 suppliers24 claims24 services$23.22 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.

METRO WEST REHAB CORP

Rehabilitation Hospital

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 871-2000

DR. MICHAEL SEAN SEFTON PH.D.

Psychologist (Health Service)

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 579-0417

JAROSLAW JAC MD

Internal Medicine (Hematology & Oncology)

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 870-2222

GREGORY C MALLOY M.D.

Physical Medicine & Rehabilitation

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 870-2222

SOTIRAQ TEROVA M.D.

Internal Medicine

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (413) 543-6820

JENNIFER LYNN MARTIN MPT

Physical Therapist

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (774) 437-2179

DR. ERIOLA TEROVA M.D

Internal Medicine

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 871-2000

SAMINA B KHAN MA, CCC-A

Audiologist

150 FLANDERS RD
WESTBOROUGH, MA 01581

Worcester County (508) 762-8050

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 William Hartzell's NPI number?

The NPI number for William Hartzell is 1417938986. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Where is William Hartzell located?

William Hartzell practices at 150 Flanders Rd, Westborough, MA 01581. The listed phone number is (508) 871-2000.

What is William Hartzell's specialty?

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

Is William Hartzell enrolled in Medicare?

Yes. William Hartzell is registered in the Medicare PECOS enrollment system.

Is William Hartzell affiliated with any hospitals?

According to CMS data, William Hartzell is affiliated with Inova Fair Oaks Hospital.

When was this NPI record last updated?

The NPPES record for William Hartzell was last updated on February 18, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.