LEROY MONROE PARKER MD
NPI 1629046776
Internal Medicine - Medical Oncology in Boston, MA

Q: What is Leroy Parker's NPI number?

The NPI number for Leroy Parker is 1629046776. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Q: What is Leroy Parker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Q: When was this NPI record last updated?

The NPPES record for Leroy Parker was last updated on November 21, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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 March 14, 2006PECOS Enrolled

450 BROOKLINE AVE, DANA-FARBER CANCER INSTITUTE, BOSTON, MA 02215(617) 632-3427(617) 632-1930 Get Directions Write a Review

NPPES record last updated: November 21, 2011. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Leroy Monroe Parker Md NPPES

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

LEROY MONROE PARKER MD (NPI 1629046776) is an individual medical oncology provider in Boston, Massachusetts, licensed in Massachusetts (37499) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1629046776

Entity TypeIndividualMale

Primary Taxonomy207RX0202X

Provider Legal NameLEROY MONROE PARKERCredential: MD

Location Address450 BROOKLINE AVE, DANA-FARBER CANCER INSTITUTEBoston, MA 02215-5418

Mailing Address20 Lincoln RoadWayland, MA 01778 · (508) 358-2096

Phone(617) 632-3427

Fax(617) 632-1930

Sole ProprietorNo

Enumeration DateMarch 14, 2006

Last NPPES UpdateNovember 21, 2011

✔ NPI 1629046776 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in MA · 37499

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

450 BROOKLINE AVE, Boston, MA 02215

Open in Google Maps ↗

Other Identifiers 11

Other037499Tufts

OtherM09083MA · Bcbs Indemnity Elect Hmo

OtherB75955DFHphc Dfci Only

Other110128571Rr Medicare Dfci

Other3004556United Health Care

Other38108Fallon Community Health

Other2066693Aetna Us Healthcare

Medicare UPINB75955

Other8350324Cigna

Medicare ID-Type UnspecifiedM09083

Medicaid2040808MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Leroy Monroe Parker Md 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 Reassignments

Medicare enrollment records show Leroy Parker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Brigham & Womens Physicians Organization Inc

0.1 mi

Internal Medicine

75 FRANCIS ST
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
4,574 clinicians in this Medicare group

NPI 1033535497 (617) 732-5500

Physicians Of Cape Cod Hospital

64 mi

Neuroradiology

27 PARK ST
Hyannis, MA 02601

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

NPI 1679832364 (508) 957-8667

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 02215 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

$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.

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.

PRABHSIMRANJOT SINGH MD

Internal Medicine (Hematology & Oncology)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 582-7956

SHAWN MAGUIRE PA-C

Physician Assistant

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 582-8487

KARINA FRANCA

Genetic Counselor, MS

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (857) 215-2285

DR. SUZANNE JAQUETH FORREST M.D.

Pediatrics (Pediatric Hematology-Oncology)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-3270

LAUREN KIRITSY MSW, LCSW

Counselor (Mental Health)

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (857) 215-3448

OFIR WOLAJ MD

Internal Medicine (Hematology & Oncology)

450 BROOKLINE AVE, DANA 2058
BOSTON, MA 02215

Suffolk County (617) 632-6139

JASON BATALHA AGPCNP-BC

Nurse Practitioner

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-6140

FATIMA EMRAN AMIR MS, LGC

Genetic Counselor, MS

450 BROOKLINE AVE
BOSTON, MA 02215

Suffolk County (617) 632-3729

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 Leroy Parker's NPI number?

The NPI number for Leroy Parker is 1629046776. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is Leroy Parker located?

Leroy Parker practices at 450 Brookline Ave Dana-Farber Cancer Institute, Boston, MA 02215. The listed phone number is (617) 632-3427.

What is Leroy Parker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Leroy Parker enrolled in Medicare?

Yes. Leroy Parker is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Leroy Parker's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Leroy Parker reassigns Medicare benefits to 2 organizations: Brigham & Womens Physicians Organization Inc (Boston, MA) and Physicians Of Cape Cod Hospital (Hyannis, MA). Each 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 Leroy Parker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Leroy Parker was last updated on November 21, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.