ALAINA D. GEARY M.D.
NPI 1760844369
Surgery in Boston, MA
About Alaina D. Geary M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALAINA D. GEARY M.D. (NPI 1760844369) is an individual surgery provider in Boston, Massachusetts, licensed in Massachusetts (277068) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, is affiliated with Boston Medical Center, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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
Alaina D. Geary M.d. 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
3Medicare enrollment records show Alaina Geary reassigns Medicare billing to 3 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
- 102 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 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.
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, MAMassachusetts General Hospital
Acute Care Hospitals · Boston, 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alaina Geary's NPI number?
The NPI number for Alaina Geary is 1760844369. It was assigned to this individual provider in the NPPES registry on March 23, 2016.
Where is Alaina Geary located?
Alaina Geary practices at 830 Harrison Avenue, Suite 1200 Moakley Bldg., Boston, MA 02118. The listed phone number is (617) 414-7990.
What is Alaina Geary's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Alaina Geary enrolled in Medicare?
Yes. Alaina Geary 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 Alaina Geary's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alaina Geary reassigns Medicare benefits to 3 organizations: Boston University General Surgical Associates, Inc. (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization 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 Alaina Geary's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alaina Geary accept?
Health plans from Taro Health and WellSense Health Plan list Alaina Geary 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 Alaina Geary affiliated with any hospitals?
According to CMS data, Alaina Geary is affiliated with Boston Medical Center and Massachusetts General Hospital.
When was this NPI record last updated?
The NPPES record for Alaina Geary was last updated on October 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Alaina D. Geary, M.D. · NPI 1760844369
Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 23, 2016.
## Identity
- **NPI:** 1760844369 (Entity type: Individual)
- **Enumerated:** March 23, 2016
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 277068 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 830 HARRISON AVENUE, SUITE 1200, MOAKLEY BLDG., Boston, MA 02118
- **Phone:** (617) 414-7990 · **Fax:** (617) 414-7999
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Boston University General Surgical Associates, Inc. (NPI 1104865567, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Tufts University School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** October 23, 2026
- **Other identifiers:** Medicaid 110117213A (MA); Medicaid 314334 (NH)
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Source: [NPI Profile](https://npiprofile.com/npi/1760844369) · Data from the CMS NPPES public registry.