DR. DAVID M. GREER MD
NPI 1003807215
Psychiatry & Neurology - Vascular Neurology in Boston, MA
About Dr. David M. Greer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID M. GREER MD (NPI 1003807215) is an individual vascular neurology provider in Boston, Massachusetts, licensed in Massachusetts (159453) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and is a graduate of University Of Florida College Of Medicine (1995).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
Accepted Insurance
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
Dr. David M. 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.
Medicare Billing Reassignments
2Medicare enrollment records show David Greer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 68 clinicians in this Medicare group
Boston, MA 02118
- Reassigned Medicare billing, Massachusetts enrollment
- 716 clinicians in this Medicare group
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 4
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Boston Medical Center
Acute Care Hospitals · Boston, MASt Elizabeth's Medical Center
Acute Care Hospitals · Brighton, MAPhysician 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.
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.
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
BOSTON, MA 02118
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 David Greer's NPI number?
The NPI number for David Greer is 1003807215. It was assigned to this individual provider in the NPPES registry on November 4, 2005.
Where is David Greer located?
David Greer practices at 725 Albany Street Shapiro 7, Suite B, Boston, MA 02118. The listed phone number is (617) 638-8456.
What is David Greer's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Vascular Neurology, with taxonomy code 2084V0102X.
Is David Greer enrolled in Medicare?
Yes. David 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 organizations bill Medicare for David Greer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Greer reassigns Medicare benefits to 2 organizations: Boston University Neurology Associates, Inc. (Boston, MA) and Bmc Affiliated Physicians, Inc. (Boston, 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 David Greer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Greer accept?
Health plans from WellSense Health Plan list David Greer 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.
Is David Greer affiliated with any hospitals?
According to CMS data, David Greer is affiliated with Boston Medical Center and St Elizabeth's Medical Center.
When was this NPI record last updated?
The NPPES record for David Greer was last updated on July 24, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. David M. Greer, MD · NPI 1003807215
Vascular Neurology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since November 4, 2005.
## Identity
- **NPI:** 1003807215 (Entity type: Individual)
- **Enumerated:** November 4, 2005
- **Primary specialty:** Psychiatry & Neurology - Vascular Neurology · taxonomy 2084V0102X
- **State license:** 159453 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 725 ALBANY STREET, SHAPIRO 7, SUITE B, Boston, MA 02118
- **Phone:** (617) 638-8456 · **Fax:** (617) 638-8465
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Boston University Neurology Associates, Inc. (NPI 1528005436, Boston, MA); Bmc Affiliated Physicians, Inc. (NPI 1245320910, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Florida College Of Medicine, class of 1995
## Record status
- **NPPES last updated:** July 24, 2017
- **Other identifiers:** Medicare ID-Type Unspecified A29378 (MA); Medicare UPIN G90513
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Source: [NPI Profile](https://npiprofile.com/npi/1003807215) · Data from the CMS NPPES public registry.