1. Home
  2. Directory
  3. Massachusetts
  4. Boston
  5. Anesthesiology
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

AUBREY BARTMESS GREER MD
NPI 1770110611
Anesthesiology in Boston, MA

Active since March 23, 2020PECOS EnrolledAccepts Medicare Assignment
75 FRANCIS ST, BOSTON, MA 02115(617) 732-8218 Get Directions Write a Review

NPPES record last updated: September 14, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 14, 2026, Aug 13, 2024, Mar 23, 2020 (3 updates tracked since 2020).

About Aubrey Bartmess Greer Md NPPES

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

AUBREY BARTMESS GREER MD (NPI 1770110611) is an individual anesthesiology provider in Boston, Massachusetts, licensed in Massachusetts (1018318) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1770110611
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameAUBREY BARTMESS GREERCredential: MD
Location Address75 FRANCIS STBoston, MA 02115-6106
Mailing Address165 Newbury St Apt 2Boston, MA 02116-2854
Phone(617) 732-8218
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 23, 2020
Last NPPES UpdateSeptember 14, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 14, 2026
✔ NPI 1770110611 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in MA · 1018318✔ Licensed in PA · MD494662
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Also ListedAnesthesiology · Critical Care MedicineTaxonomy 207LC0200X · License MD494662 (PA)
75 FRANCIS ST, Boston, MA 02115
Open in Google Maps ↗

Secondary Practice Locations 2

Location 11611 NW 12th Ave Rm Sw303Miami, FL 33136-1005 · Phone (305) 355-1350
Location 23400 Civic Center Blvd, Perelman Center for Advanced MedicinePhiladelphia, PA 19104-5127 · Phone (215) 349-8310 · Fax (215) 662-2739

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Aubrey Bartmess Greer Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5193264976
PECOS Enrollment IDI20240823003345
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 Aubrey Greer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Brigham & Womens Physicians Organization Inc
Same address
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

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

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.

RUMA RAJBHANDARI
Internal Medicine (Gastroenterology)
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 525-6841
WENYA LINDA BI
Neurological Surgery
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (203) 645-9485
CHI YUEN CHAN M.D.
Student in an Organized Health Care Education/Training Program
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500
JENNIFER MICHELLE THOMAS MD
Radiology (Diagnostic Radiology)
75 FRANCIS ST, DEPARTMENT OF RADIOLOGY
BOSTON, MA 02115
Suffolk County (617) 732-6248
GAURAV SHARMA M.D.
Surgery (Vascular Surgery)
75 FRANCIS ST, BRIGHAM AND WOMEN'S HOSPITAL
BOSTON, MA 02115
Suffolk County (951) 259-0890
YEU-SHIN CINDY CHANG M.D., M.P.H.
Emergency Medicine
75 FRANCIS ST, BWH DEPT. OF EMERGENCY MEDICINE
BOSTON, MA 02115
Suffolk County (617) 732-8070
CARA L RICHARDS
Physician Assistant
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500
LARA COAKLEY
Nurse Practitioner (Family)
75 FRANCIS ST
BOSTON, MA 02115
Suffolk County (617) 732-5500

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 Aubrey Greer's NPI number?

The NPI number for Aubrey Greer is 1770110611. It was assigned to this individual provider in the NPPES registry on March 23, 2020.

Where is Aubrey Greer located?

Aubrey Greer practices at 75 Francis St, Boston, MA 02115. The listed phone number is (617) 732-8218.

What is Aubrey Greer's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Aubrey Greer enrolled in Medicare?

Yes. Aubrey Greer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Aubrey Greer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aubrey Greer reassigns Medicare benefits to Brigham & Womens Physicians Organization 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 Aubrey Greer'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 Aubrey Greer was last updated on September 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days 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.