DR. JEFFREY T KLENZ M.D.
NPI 1376527630
Internal Medicine - Pulmonary Disease in Burlington, MA

Q: What is Jeffrey Klenz's NPI number?

The NPI number for Jeffrey Klenz is 1376527630. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Q: What is Jeffrey Klenz'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 Jeffrey Klenz was last updated on November 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 December 01, 2005PECOS Enrolled

91.41/100

CMS Quality Rating

LAHEY CLINIC, 41 MALL RD., BURLINGTON, MA 01805(781) 744-8480 Get Directions Write a Review

NPPES record last updated: November 16, 2010. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Jeffrey T Klenz M.d. NPPES

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

DR. JEFFREY T KLENZ M.D. (NPI 1376527630) is an individual pulmonary disease provider in Burlington, Massachusetts, licensed in Massachusetts (74561) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376527630

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. JEFFREY T KLENZCredential: M.D.

Location AddressLAHEY CLINIC, 41 MALL RD.Burlington, MA 01805-0001

Mailing AddressLahey Clinic, 41 Mall Rd.Burlington, MA 01805-0001 · (781) 744-8480

Phone(781) 744-8480

Sole ProprietorNo

Enumeration DateDecember 1, 2005

Last NPPES UpdateNovember 16, 2010

✔ NPI 1376527630 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 MA · 74561

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 74561 (MA)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 74561 (MA)

LAHEY CLINIC, Burlington, MA 01805

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Other Identifiers 4

Medicare UPING28959MA

Medicare PINA21375MA

Medicaid110057376AMA

Medicaid3154700MA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Jeffrey T Klenz M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Jeffrey Klenz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lahey Clinic, Inc

14 mi

Internal Medicine

1 ESSEX CENTER DR
Peabody, MA 01960

Reassigned Medicare billing, Massachusetts enrollment
1,841 clinicians in this Medicare group

NPI 1063447316 (781) 744-8000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 16

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.

368 services269 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.

365 services344 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.

333 services296 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.

223 services214 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.

175 services172 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.

170 services160 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.

135 services135 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.

50 services48 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.

45 services38 patients

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.

34 services22 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

30 services15 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

24 services24 patients

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

24 services24 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.

22 services22 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.

15 services11 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

13 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01805 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

91.41/100

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

Scored through an Alternative Payment Model

Quality

76.87

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 24

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

8 suppliers70 claims70 services$34.93 avg. paid by Medicare

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

DME-Other DME · category DE000N

5 suppliers15 claims15 services$8.68 avg. paid by Medicare

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

DME-Other DME · category DE001N

4 suppliers27 claims27 services$86.09 avg. paid by Medicare

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

DME-Other DME · category DE001N

3 suppliers23 claims58 services$32.18 avg. paid by Medicare

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

DME-Other DME · category DE001N

7 suppliers34 claims187 services$16.03 avg. paid by Medicare

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

DME-Other DME · category DE001N

5 suppliers31 claims173 services$12.82 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

8 suppliers70 claims70 services$46.94 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

9 suppliers54 claims54 services$16.00 avg. paid by Medicare

Tubing used with positive airway pressure device A7037

DME-Other DME · category DE001N

5 suppliers19 claims19 services$9.78 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

9 suppliers90 claims516 services$1.93 avg. paid by Medicare

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

DME-Other DME · category DE001N

5 suppliers11 claims11 services$5.99 avg. paid by Medicare

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

DME-Other DME · category DE001N

8 suppliers35 claims35 services$10.27 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

7 suppliers117 claims120 services$14.27 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

4 suppliers55 claims60 services$3.58 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

2 suppliers54 claims54 services$22.65 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

11 suppliers243 claims248 services$64.03 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

4 suppliers72 claims73 services$31.04 avg. paid by Medicare

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

2 suppliers15 claims870 services$4.38 avg. paid by Medicare

Formoterol fumarate, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 20 micrograms J7606

DME-Drugs Administered Through DME · category DG006N

4 suppliers15 claims1,260 services$6.26 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

19 suppliers73 claims15,733 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

11 suppliers26 claims1,950 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

6 suppliers23 claims1,890 services$0.82 avg. paid by Medicare

Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738

DME-Oxygen and Supplies · category DC000N

4 suppliers19 claims19 services$33.46 avg. paid by Medicare

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

DME-Other DME · category DE000N

29 suppliers115 claims115 services$23.33 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.

KRISTEN M ROBSON MD

Internal Medicine (Gastroenterology)

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8699

DR. THOMAS M BRAND M.D.

Emergency Medicine

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8000

CHRISTINE B. THOMAS M.D.

Pathology (Anatomic Pathology)

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8000

DAVID A ROSMAN M.D.

Radiology (Diagnostic Radiology)

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8170

FREDERICK W HEISS MD

Internal Medicine (Gastroenterology)

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-5100

DR. STEPHEN R FREIDBERG MD

Neurological Surgery

LAHEY CLINIC, 41 MALL RD.
BURLINGTON, MA 01805

Middlesex County (781) 744-8085

JULIE ALAYNE OUELLETTE C.R.N.A.

Nurse Anesthetist, Certified Registered

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8132

DR. JONATHAN S. SILVER M.D.

Internal Medicine (Clinical Cardiac Electrophysiology)

LAHEY CLINIC, 41 MALL ROAD
BURLINGTON, MA 01805

Middlesex County (781) 744-8460

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 Jeffrey Klenz's NPI number?

The NPI number for Jeffrey Klenz is 1376527630. It was assigned to this individual provider in the NPPES registry on December 1, 2005.

Where is Jeffrey Klenz located?

Jeffrey Klenz practices at Lahey Clinic 41 Mall Rd., Burlington, MA 01805. The listed phone number is (781) 744-8480.

What is Jeffrey Klenz's specialty?

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

Is Jeffrey Klenz enrolled in Medicare?

Yes. Jeffrey Klenz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Jeffrey Klenz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Jeffrey Klenz reassigns Medicare benefits to Lahey Clinic, Inc (Peabody, MA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jeffrey Klenz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Jeffrey Klenz accept?

Health plans from Anthem Blue Cross and Blue Shield list Jeffrey Klenz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Jeffrey Klenz was last updated on November 16, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.