DR. RICHARD GREGORY LYONS M.D.
NPI 1154463867
Emergency Medicine in Ayer, MA
About Dr. Richard Gregory Lyons M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RICHARD GREGORY LYONS M.D. (NPI 1154463867) is an individual emergency medicine provider in Ayer, Massachusetts, licensed in Massachusetts (49327) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Richard Gregory Lyons M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
8Medicare enrollment records show Richard Lyons reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lowell, MA 01854
- Reassigned Medicare billing, Massachusetts enrollment
- 49 clinicians in this Medicare group
Burlington, MA 01805
- Reassigned Medicare billing, Massachusetts enrollment
- 1,574 clinicians in this Medicare group
Derry, NH 03038
- Reassigned Medicare billing, New Hampshire enrollment
- 145 clinicians in this Medicare group
Nantucket, MA 02554
- Reassigned Medicare billing, Massachusetts enrollment
- 206 clinicians in this Medicare group
Rumford, ME 04276
- Reassigned Medicare billing, Maine enrollment
- 544 clinicians in this Medicare group
Augusta, ME 04330
- Reassigned Medicare billing, Maine enrollment
- 978 clinicians in this Medicare group
Ellsworth, ME 04605
- Reassigned Medicare billing, Maine enrollment
- 167 clinicians in this Medicare group
Machias, ME 04654
- Reassigned Medicare billing, Maine enrollment
- 120 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01432 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.
AYER, MA 01432
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 Richard Lyons's NPI number?
The NPI number for Richard Lyons is 1154463867. It was assigned to this individual provider in the NPPES registry on February 12, 2007.
Where is Richard Lyons located?
Richard Lyons practices at 200 Groton Rd, Ayer, MA 01432. The listed phone number is (978) 784-9250.
What is Richard Lyons's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Richard Lyons enrolled in Medicare?
Yes. Richard Lyons is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Richard Lyons's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Richard Lyons reassigns Medicare benefits to 8 organizations: Merrimack Valley Emergency Associates, Inc. (Lowell, MA), Lahey Clinic, Inc. (Burlington, MA), Emergency Medicine Services Of Nh, LLC (Derry, NH), Nantucket Cottage Hospital (Nantucket, MA), Rumford Hospital (Rumford, ME) and 3 more organizations, listed in the Medicare section above. 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 Richard Lyons's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Richard Lyons accept?
Health plans from WellSense Health Plan list Richard Lyons 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.
When was this NPI record last updated?
The NPPES record for Richard Lyons was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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. Richard Gregory Lyons, M.D. · NPI 1154463867
Emergency Medicine physician in Ayer, Massachusetts. Individual provider, active in the CMS NPPES registry since February 12, 2007.
## Identity
- **NPI:** 1154463867 (Entity type: Individual)
- **Enumerated:** February 12, 2007
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 49327 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 200 GROTON RD, Ayer, MA 01432-1168
- **Phone:** (978) 784-9250
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): Merrimack Valley Emergency Associates, Inc. (NPI 1821280959, Lowell, MA); Lahey Clinic, Inc. (NPI 1538194980, Burlington, MA); Emergency Medicine Services Of Nh, LLC (NPI 1386341444, Derry, NH); Nantucket Cottage Hospital (NPI 1447214622, Nantucket, MA); Rumford Hospital (NPI 1205991122, Rumford, ME); and 3 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare ID-Type Unspecified J04689 (MA); Medicaid 6194575 (MA); Medicare UPIN B97877 (MA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1154463867) · Data from the CMS NPPES public registry.