ROBERT DANIEL KAY MD
NPI 1912495656
Orthopaedic Surgery in Boston, MA
About Robert Daniel Kay Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT DANIEL KAY MD (NPI 1912495656) is an individual orthopaedic surgery provider in Boston, Massachusetts, licensed in Massachusetts (1013142) and active in the NPI registry since April 2018. He is enrolled in Medicare PECOS, maintains a secondary practice location in Torrance, and is a graduate of University Of Arizona College Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Robert Daniel Kay 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
4Medicare enrollment records show Robert Kay reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,360 clinicians in this Medicare group
Boston, MA 02114
- Reassigned Medicare billing, Massachusetts enrollment
- 6,234 clinicians in this Medicare group
Newton, MA 02462
- Reassigned Medicare billing, Massachusetts enrollment
- 992 clinicians in this Medicare group
Hemet, CA 92545
- Reassigned Medicare billing, California enrollment
- 5,228 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Robert Kay's NPI number?
The NPI number for Robert Kay is 1912495656. It was assigned to this individual provider in the NPPES registry on April 27, 2018.
Where is Robert Kay located?
Robert Kay practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 724-8801.
What is Robert Kay's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Robert Kay enrolled in Medicare?
Yes. Robert Kay 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 Robert Kay's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Kay reassigns Medicare benefits to 4 organizations: Massachusetts General Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA), Mass General Brigham Medical Group Suburban Massachusetts Inc (Newton, MA) and Southern California Permanente Medical Group (Hemet, CA). 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 Robert Kay'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 Robert Kay was last updated on October 15, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Robert Daniel Kay, MD · NPI 1912495656
Orthopaedic Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 27, 2018.
## Identity
- **NPI:** 1912495656 (Entity type: Individual)
- **Enumerated:** April 27, 2018
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 1013142 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2621
- **Phone:** (617) 724-8801 · **Fax:** (617) 726-2085
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Massachusetts General Physicians Organization Inc (NPI 1801874573, Boston, MA); The General Hospital Corporation (NPI 1023049236, Boston, MA); Mass General Brigham Medical Group Suburban Massachusetts Inc (NPI 1538191218, Newton, MA); Southern California Permanente Medical Group (NPI 1013433465, Hemet, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Arizona College Of Medicine, class of 2018
## Record status
- **NPPES last updated:** October 15, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1912495656) · Data from the CMS NPPES public registry.