DR. HAROLD L. LAZAR M.D.
NPI 1205876372
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Boston, MA

Q: What is Harold Lazar's NPI number?

The NPI number for Harold Lazar is 1205876372. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Q: What is Harold Lazar's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Q: When was this NPI record last updated?

The NPPES record for Harold Lazar was last updated on June 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 June 07, 2006PECOS Enrolled

732 HARRISON AVE, 3RD FLOOR, BOSTON, MA 02118(617) 638-5600(617) 638-7228 Get Directions Write a Review

NPPES record last updated: June 16, 2014. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Dr. Harold L. Lazar M.d. NPPES

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

DR. HAROLD L. LAZAR M.D. (NPI 1205876372) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Boston, Massachusetts, licensed in Massachusetts (51809) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1205876372

Entity TypeIndividualMale

Primary Taxonomy208G00000X

Provider Legal NameDR. HAROLD L. LAZARCredential: M.D.

Location Address732 HARRISON AVE, 3RD FLOORBoston, MA 02118-2309

Mailing Address720 Harrison Ave, Dob 503Boston, MA 02118-2371

Phone(617) 638-5600

Fax(617) 638-7228

Sole ProprietorNo

Enumeration DateJune 7, 2006

Last NPPES UpdateJune 16, 2014

✔ NPI 1205876372 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians

Taxonomy Code208G00000X

License✔ Licensed in MA · 51809

Definition

A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.

Also ListedSurgeryTaxonomy 208600000X · License 51809 (MA)

732 HARRISON AVE, Boston, MA 02118

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Other Identifiers 2

Medicare PINGX0954MA

Medicaid110064108AMA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource (Common Ground Healthcare).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. Harold L. Lazar 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 Harold Lazar reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Signify Health Medical Associates, PLLC

1,547 mi

General Practice

4055 VALLEY VIEW LN STE 700
Dallas, TX 75244

Reassigned Medicare billing, Massachusetts enrollment
203 clinicians in this Medicare group

NPI 1750845863 (972) 715-3800

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02118 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

$189.86 typical visit price

range $63.72 – $189.86

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

Most-billed visit code 99205

Established Patient

$78.84 typical visit price

range $21.07 – $155.29

Typical copayment $19.71 (range $5.26 – $38.82)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

ARUNA AMBAT SARASWAT MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

732 HARRISON AVE
BOSTON, MA 02118

Suffolk County (617) 638-7470

RICHARD A COHEN M.D.

Internal Medicine (Cardiovascular Disease)

732 HARRISON AVE, 4TH FLOOR
BOSTON, MA 02118

Suffolk County (617) 638-7490

MR. JEREMY KOBULNIK M.D.

Internal Medicine (Cardiovascular Disease)

732 HARRISON AVE, PRESTON, 3RD FLOOR
BOSTON, MA 02118

Suffolk County (617) 638-7490

KENYA DANAE PALMER NP

Nurse Practitioner (Family)

732 HARRISON AVE, PRESTON, 2ND FLOOR
BOSTON, MA 02118

Suffolk County (617) 638-7470

ZORAN S. NEDELJKOVIC M.D.

Internal Medicine (Interventional Cardiology)

732 HARRISON AVE, PRESTON 3RD FLOOR
BOSTON, MA 02118

Suffolk County (617) 638-7490

VICTORIA YAROSLAVIVNA VIVTCHARENKO MD

Student in an Organized Health Care Education/Training Program

732 HARRISON AVE
BOSTON, MA 02118

Suffolk County (563) 794-0950

NOYAN A GOKCE M.D.

Internal Medicine (Cardiovascular Disease)

732 HARRISON AVE, PRESTON BUILDING FL 3
BOSTON, MA 02118

Suffolk County (617) 638-7490

MICHAEL D. KLEIN M.D.

Internal Medicine (Cardiovascular Disease)

732 HARRISON AVE, 3RD FLOOR
BOSTON, MA 02118

Suffolk County (617) 638-7490

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 Harold Lazar's NPI number?

The NPI number for Harold Lazar is 1205876372. It was assigned to this individual provider in the NPPES registry on June 7, 2006.

Where is Harold Lazar located?

Harold Lazar practices at 732 Harrison Ave 3rd Floor, Boston, MA 02118. The listed phone number is (617) 638-5600.

What is Harold Lazar's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Harold Lazar enrolled in Medicare?

Yes. Harold Lazar is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Harold Lazar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Harold Lazar reassigns Medicare benefits to Signify Health Medical Associates, PLLC (Dallas, TX). 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 Harold Lazar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Harold Lazar accept?

Health plans from CareSource (Common Ground Healthcare) list Harold Lazar 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 Harold Lazar was last updated on June 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.