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RACHEL ANA GROSSER MD
NPI 1801358841
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Boston, MA

Active since April 01, 2019PECOS Enrolled
732 HARRISON AVE, FL 3 WEST, PRESENT BLDG., BOSTON, MA 02118(617) 638-8488(617) 638-8469 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 6, 2026, Apr 1, 2019 (2 updates tracked since 2019).

About Rachel Ana Grosser Md NPPES

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

RACHEL ANA GROSSER MD (NPI 1801358841) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Boston, Massachusetts, licensed in Massachusetts (1028158) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2019).

NPPES Registry Identity

NPI1801358841
Entity TypeIndividualFemale
Primary Taxonomy208G00000X
Provider Legal NameRACHEL ANA GROSSERCredential: MD
Location Address732 HARRISON AVE, FL 3 WEST, PRESENT BLDG.Boston, MA 02118-2309
Mailing Address960 Massachusetts Avenue, Fl 2Massachusetts, MA 02118-2690
Phone(617) 638-8488
Fax(617) 638-8469
Sole ProprietorNo
Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 2019
Enumeration DateApril 1, 2019
Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration
NPPES CertifiedAugust 6, 2026
✔ NPI 1801358841 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 · 1028158
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 1028158 (MA)
732 HARRISON AVE, FL 3 WEST, Boston, MA 02118
Open in Google Maps ↗

Secondary Practice Locations 4

Location 11 Pearl St, Suite 2000Brockton, MA 02301 · Phone (508) 584-4104 · Fax (508) 584-2053
Location 2736 Cambridge St.Brighton, MA 02135 · Phone (617) 789-3000
Location 311 Nevins St., Suite 2000Brighton, MA 02135 · Phone (617) 789-2442 · Fax (617) 789-4207
Location 4235 North Pearl StBrockton, MA 02301 · Phone (508) 427-3000

Other Identifiers 1

Medicaid110234841AMA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Rachel Ana Grosser Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1658831581
PECOS Enrollment IDI20260901000428
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 Rachel Grosser reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Boston University General Surgical Associates, Inc.
0.3 mi
Surgery
1 BOSTON MEDICAL CTR PL # C500
Boston, MA 02118
  • Reassigned Medicare billing, Massachusetts enrollment
  • 102 clinicians in this Medicare group
NPI 1104865567 (617) 638-8605

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 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JUDITH P PHILLIPS PA-C
Physician Assistant
732 HARRISON AVE, FL 3 WEST, PRESTON BLDG
BOSTON, MA 02118
Suffolk County (617) 638-7350
MISS OLUWAKEMI OLOTU NP
Nurse Practitioner (Family)
732 HARRISON AVE, FL 3 WEST, PRESTON BLDG.
BOSTON, MA 02118
Suffolk County (617) 638-7350
DR. GEORGE TOLIS JR. M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
732 HARRISON AVE, FL 3 WEST, PRESTON BLDG.
BOSTON, MA 02118
Suffolk County (617) 638-7350

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 Rachel Grosser's NPI number?

The NPI number for Rachel Grosser is 1801358841. It was assigned to this individual provider in the NPPES registry on April 1, 2019.

Where is Rachel Grosser located?

Rachel Grosser practices at 732 Harrison Ave, Fl 3 West Present Bldg., Boston, MA 02118. The listed phone number is (617) 638-8488.

What is Rachel Grosser's specialty?

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

Is Rachel Grosser enrolled in Medicare?

Yes. Rachel Grosser is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rachel Grosser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rachel Grosser reassigns Medicare benefits to Boston University General Surgical Associates, Inc. (Boston, 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 Rachel Grosser'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 Rachel Grosser was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.